diff --git a/.gitignore b/.gitignore
index 7d2188c..0b93b42 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 node_modules
 dist
+build
 bin
 
 Downloads
diff --git a/package-lock.json b/package-lock.json
index d7df622..e244e0d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,1109 +1,48 @@
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-      "license": "MIT",
-      "engines": {
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-      "license": "MIT",
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-    "node_modules/prettier": {
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-      "integrity": "sha512-I7AIg5boAr5R0FFtJ6rCfD+LFsWHp81dolrFD8S79U9tb8Az2nGrJncnMSnys+bpQJfRUzqs9hnA81OAA3hCuQ==",
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-      "license": "MIT",
-      "bin": {
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-      },
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-      "dev": true,
-      "license": "MIT",
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-      "integrity": "sha512-pb/MYmXstAkysRFx8piNI1tGFNQIFA3vkE3Gq4EuA1dF6gHp/+vgZqsCGJapvy8N3Q+4o7FwvquPJcnZ7RYy4g==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=4"
-      }
-    },
-    "node_modules/shebang-command": {
-      "version": "2.0.0",
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-      "integrity": "sha512-kHxr2zZpYtdmrN1qDjrrX/Z1rR1kG8Dx+gkpK1G4eXmvXswmcE1hTWBWYUzlraYw1/yZp6YuDY77YtvbN0dmDA==",
-      "dev": true,
-      "license": "MIT",
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-        "shebang-regex": "^3.0.0"
-      },
-      "engines": {
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-      }
-    },
-    "node_modules/shebang-regex": {
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-      "dev": true,
-      "license": "MIT",
-      "engines": {
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-    },
-    "node_modules/strip-json-comments": {
-      "version": "3.1.1",
-      "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-3.1.1.tgz",
-      "integrity": "sha512-6fPc+R4ihwqP6N/aIv2f1gMH8lOVtWQHoqC4yK6oSDVVocumAsfCqjkXnqiYMhmMwS/mEHLp7Vehlt3ql6lEig==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=8"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/sindresorhus"
-      }
-    },
-    "node_modules/supports-color": {
-      "version": "7.2.0",
-      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
-      "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "has-flag": "^4.0.0"
-      },
-      "engines": {
-        "node": ">=8"
-      }
-    },
-    "node_modules/type-check": {
-      "version": "0.4.0",
-      "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
-      "integrity": "sha512-XleUoc9uwGXqjWwXaUTZAmzMcFZ5858QA2vvx1Ur5xIcixXIP+8LnFDgRplU30us6teqdlskFfu+ae4K79Ooew==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "prelude-ls": "^1.2.1"
-      },
-      "engines": {
-        "node": ">= 0.8.0"
-      }
-    },
-    "node_modules/uri-js": {
-      "version": "4.4.1",
-      "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz",
-      "integrity": "sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==",
-      "dev": true,
-      "license": "BSD-2-Clause",
-      "dependencies": {
-        "punycode": "^2.1.0"
-      }
-    },
-    "node_modules/which": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
-      "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
-      "dev": true,
-      "license": "ISC",
-      "dependencies": {
-        "isexe": "^2.0.0"
-      },
-      "bin": {
-        "node-which": "bin/node-which"
-      },
-      "engines": {
-        "node": ">= 8"
-      }
-    },
-    "node_modules/word-wrap": {
-      "version": "1.2.5",
-      "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.5.tgz",
-      "integrity": "sha512-BN22B5eaMMI9UMtjrGd5g5eCYPpCPDUy0FJXbYsaT5zYxjFOckS53SQDE3pWkVoWpHXVb3BrYcEN4Twa55B5cA==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/yocto-queue": {
-      "version": "0.1.0",
-      "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",
-      "integrity": "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=10"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/sindresorhus"
-      }
     }
   }
 }
diff --git a/package.json b/package.json
index 66dd0a0..4624e43 100644
--- a/package.json
+++ b/package.json
@@ -2,18 +2,23 @@
   "name": "tidalwave",
   "version": "0.12.0",
   "description": "A TIDAL downloader for tracks, albums, artist discographies and playlists",
-  "main": "./src/index.js",
+  "main": "./src/index.ts",
   "scripts": {
-    "build": "npm run build:all",
-    "build:linux": "npm run build:linux-x64",
-    "build:windows": "npm run build:windows-x64",
-    "build:macos": "npm run build:macos-arm64",
-    "build:linux-x64": "cd scripts && bash ./build-linux-x64.sh",
-    "build:linux-arm64": "cd scripts && bash ./build-linux-arm64.sh",
-    "build:windows-x64": "cd scripts && bash ./build-windows-x64.sh",
-    "build:macos-x64": "cd scripts && bash ./build-macos-x64.sh",
-    "build:macos-arm64": "cd scripts && bash ./build-macos-arm64.sh",
-    "build:all": "cd scripts && bash ./build-all.sh",
+    "build": "tsc",
+    "dev": "tsc --watch",
+    "start": "npm run start:bun",
+    "start:node": "npm run build && node dist",
+    "start:bun": "bun .",
+    "package": "npm run package:all",
+    "package:linux": "npm run package:linux-x64",
+    "package:windows": "npm run package:windows-x64",
+    "package:macos": "npm run package:macos-arm64",
+    "package:linux-x64": "cd scripts && bash ./package-linux-x64.sh",
+    "package:linux-arm64": "cd scripts && bash ./package-linux-arm64.sh",
+    "package:windows-x64": "cd scripts && bash ./package-windows-x64.sh",
+    "package:macos-x64": "cd scripts && bash ./package-macos-x64.sh",
+    "package:macos-arm64": "cd scripts && bash ./package-macos-arm64.sh",
+    "package:all": "cd scripts && bash ./package-all.sh",
     "download-binaries": "cd scripts && bash ./download-binaries.sh"
   },
   "repository": {
@@ -34,5 +39,9 @@
   "bugs": {
     "url": "https://github.com/Lyall-A/tidalwave/issues"
   },
-  "homepage": "https://github.com/Lyall-A/tidalwave#readme"
+  "homepage": "https://github.com/Lyall-A/tidalwave#readme",
+  "devDependencies": {
+    "@types/node": "^25.5.0",
+    "typescript": "^6.0.2"
+  }
 }
diff --git a/scripts/build-all.sh b/scripts/build-all.sh
deleted file mode 100755
index c049dc4..0000000
--- a/scripts/build-all.sh
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/bin/bash
-
-./build-linux-x64.sh
-./build-linux-arm64.sh
-./build-macos-x64.sh
-./build-macos-arm64.sh
-./build-windows-x64.sh
\ No newline at end of file
diff --git a/scripts/build-linux-arm64.sh b/scripts/build-linux-arm64.sh
deleted file mode 100755
index 7cdcb89..0000000
--- a/scripts/build-linux-arm64.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/bash
-
-./build.sh linux-arm64 bun-linux-arm64 "" .tar.gz
\ No newline at end of file
diff --git a/scripts/build-linux-x64.sh b/scripts/build-linux-x64.sh
deleted file mode 100755
index abdb06b..0000000
--- a/scripts/build-linux-x64.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/bash
-
-./build.sh linux-x64 bun-linux-x64 "" .tar.gz
\ No newline at end of file
diff --git a/scripts/build-macos-arm64.sh b/scripts/build-macos-arm64.sh
deleted file mode 100755
index c3f3a90..0000000
--- a/scripts/build-macos-arm64.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/bash
-
-./build.sh macos-arm64 bun-darwin-arm64
\ No newline at end of file
diff --git a/scripts/build-macos-x64.sh b/scripts/build-macos-x64.sh
deleted file mode 100755
index bbb9f40..0000000
--- a/scripts/build-macos-x64.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/bash
-
-./build.sh macos-x64 bun-darwin-x64
\ No newline at end of file
diff --git a/scripts/build-windows-x64.sh b/scripts/build-windows-x64.sh
deleted file mode 100755
index c77f1ed..0000000
--- a/scripts/build-windows-x64.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/bash
-
-./build.sh windows-x64 bun-windows-x64 .exe .zip
\ No newline at end of file
diff --git a/scripts/download-binaries.sh b/scripts/download-binaries.sh
index 3a93b20..1b16d17 100755
--- a/scripts/download-binaries.sh
+++ b/scripts/download-binaries.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -e
+
 ffmpeg_linux_x64_download_url=https://github.com/BtbN/FFmpeg-Builds/releases/download/latest/ffmpeg-master-latest-linux64-gpl.tar.xz
 ffmpeg_linux_x64_download_extension=.tar.xz
 ffmpeg_linux_x64_download_path=ffmpeg-linux-x64
diff --git a/scripts/package-all.sh b/scripts/package-all.sh
new file mode 100755
index 0000000..2efadb7
--- /dev/null
+++ b/scripts/package-all.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+./package-linux-x64.sh
+./package-linux-arm64.sh
+./package-macos-x64.sh
+./package-macos-arm64.sh
+./package-windows-x64.sh
\ No newline at end of file
diff --git a/scripts/package-linux-arm64.sh b/scripts/package-linux-arm64.sh
new file mode 100755
index 0000000..9fd18ba
--- /dev/null
+++ b/scripts/package-linux-arm64.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+./package.sh linux-arm64 bun-linux-arm64 "" .tar.gz
\ No newline at end of file
diff --git a/scripts/package-linux-x64.sh b/scripts/package-linux-x64.sh
new file mode 100755
index 0000000..29e3ab4
--- /dev/null
+++ b/scripts/package-linux-x64.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+./package.sh linux-x64 bun-linux-x64 "" .tar.gz
\ No newline at end of file
diff --git a/scripts/package-macos-arm64.sh b/scripts/package-macos-arm64.sh
new file mode 100755
index 0000000..a87339c
--- /dev/null
+++ b/scripts/package-macos-arm64.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+./package.sh macos-arm64 bun-darwin-arm64
\ No newline at end of file
diff --git a/scripts/package-macos-x64.sh b/scripts/package-macos-x64.sh
new file mode 100755
index 0000000..7478a15
--- /dev/null
+++ b/scripts/package-macos-x64.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+./package.sh macos-x64 bun-darwin-x64
\ No newline at end of file
diff --git a/scripts/package-windows-x64.sh b/scripts/package-windows-x64.sh
new file mode 100755
index 0000000..d0e2d44
--- /dev/null
+++ b/scripts/package-windows-x64.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+./package.sh windows-x64 bun-windows-x64 .exe .zip
\ No newline at end of file
diff --git a/scripts/build.sh b/scripts/package.sh
similarity index 54%
rename from scripts/build.sh
rename to scripts/package.sh
index 0c07b0d..c8f6b60 100755
--- a/scripts/build.sh
+++ b/scripts/package.sh
@@ -5,9 +5,9 @@ target="${2:-bun}"
 file_ext="$3"
 archive_ext="${4:-.zip}"
 
-dist_dir=../dist
+build_dir=../build
 bin_dir=../bin
-out_dir=$dist_dir/$os
+out_dir=$build_dir/$os
 filename=tidalwave
 archive_name=tidalwave-$os
 
@@ -19,11 +19,9 @@ bun build \
     --compile \
     --production \
     --target=$target \
-    --external="./config.json" \
-    --external="./secrets.json" \
-    --define="__filename=process.execPath" \
+    --define="isBuild=true" \
     --outfile="$out_dir/$filename$file_ext" \
-    ./index.js
+    ./index.ts
 
 cp ./default.config.json "$out_dir/config.json"
 cp ../README.md "$out_dir/README.md"
@@ -31,11 +29,12 @@ cp ../LICENSE "$out_dir/LICENSE"
 cp -r "$bin_dir/$os" "$out_dir/bin"
 chmod +x "$out_dir/$filename$file_ext"
 
-cp -r "$out_dir" "$dist_dir/$archive_name"
+cp -r "$out_dir" "$build_dir/$archive_name"
 if [[ "$archive_ext" == ".tar.gz" ]]; then
-    7z a "$dist_dir/$archive_name.tar" "$dist_dir/$archive_name" -bso0
-    7z a "$dist_dir/$archive_name.tar.gz" "$dist_dir/$archive_name.tar" -bso0
+    7z a "$build_dir/$archive_name.tar" "$build_dir/$archive_name" -bso0
+    7z a "$build_dir/$archive_name.tar.gz" "$build_dir/$archive_name.tar" -bso0
+    rm "$build_dir/$archive_name.tar"
 else
-    7z a "$dist_dir/$archive_name$archive_ext" "$dist_dir/$archive_name" -bso0
+    7z a "$build_dir/$archive_name$archive_ext" "$build_dir/$archive_name" -bso0
 fi
-rm -rf "$dist_dir/$archive_name"
+rm -rf "$build_dir/$archive_name"
diff --git a/src/globals.js b/src/globals.js
deleted file mode 100644
index 2829aee..0000000
--- a/src/globals.js
+++ /dev/null
@@ -1,195 +0,0 @@
-const fs = require('fs');
-const path = require('path');
-
-const parseConfig = require('./utils/parseConfig');
-const Logger = require('./utils/Logger');
-
-// bun moment
-const execDir = path.dirname(__filename);
-const execFile = __filename;
-
-// Read config
-const configPath = path.resolve(execDir, 'config.json');
-if (!fs.existsSync(configPath)) fs.writeFileSync(configPath, JSON.stringify(require('./default.config.json'), null, 4));
-const config = parseConfig(configPath);
-
-// Read secrets
-const secretsPath = config.secretsPath ? path.resolve(execDir, config.secretsPath) : undefined;
-const secrets = fs.existsSync(secretsPath) ? JSON.parse(fs.readFileSync(secretsPath)) : { };
-
-const logger = new Logger();
-
-module.exports = {
-    config,
-    secrets,
-    configPath,
-    secretsPath,
-    execDir,
-    execFile,
-    logger,
-    argOptions: [
-        { name: 'help', shortName: 'h', noValue: true, description: 'Displays this menu' },
-        { name: 'debug', noValue: true, description: 'Enable debug', hidden: true },
-
-        { name: 'track', shortName: 't', type: 'int', description: 'Download a track ID', valueDescription: 'track-id' },
-        { name: 'album', shortName: 'm', type: 'int', description: 'Download a album ID', valueDescription: 'album-id' },
-        { name: 'video', shortName: 'v', description: 'Download a video ID', valueDescription: 'video-id' },
-        { name: 'artist', shortName: 'a', type: 'int', description: 'Download an artist ID\'s discography', valueDescription: 'artist-id' },
-        { name: 'playlist', shortName: 'p', description: 'Download all items from a playlist UUID', valueDescription: 'playlist-uuid' },
-        { name: 'mix', shortName: 'x', description: 'Download all items from a mix ID', valueDescription: 'mix-id' },
-        { name: 'search', shortName: 's', description: 'Download top search', valueDescription: 'query' },
-        { name: 'search:track', shortName: 's:t', description: 'Download top search for a track', valueDescription: 'query' },
-        { name: 'search:album', shortName: 's:m', description: 'Download top search for a album', valueDescription: 'query' },
-        { name: 'search:video', shortName: 's:v', description: 'Download top search for a video', valueDescription: 'query' },
-        { name: 'search:artist', shortName: 's:a', description: 'Download top search for a artist', valueDescription: 'query' },
-        { name: 'search:playlist', shortName: 's:p', description: 'Download top search for a playlist', valueDescription: 'query' },
-        { name: 'url', shortName: 'u', description: 'Download from a TIDAL URL', valueDescription: 'url' },
-        { name: 'update', description: 'Update an existing file with metadata from TIDAL', valueDescription: 'path' },
-
-        { name: 'track-quality', shortName: 'tq', aliases: ['quality'], shortAliases: ['q'], description: 'Track download quality', valueDescription: 'low|high|max', default: config.trackQuality },
-        { name: 'video-quality', shortName: 'vq', description: 'Video download quality', valueDescription: 'low|high|max|<height>', default: config.videoQuality },
-        { name: 'dolby-atmos', shortName: 'da', type: 'bool', description: 'Downloads in immersive audio when available. Requires a token from a mobile device', valueDescription: 'yes|no', default: config.useDolbyAtmos, hidden: true },
-        { name: 'metadata', shortName: 'md', type: 'bool', description: 'Embed metadata to download', valueDescription: 'yes|no', default: config.embedMetadata },
-        { name: 'lyrics', shortName: 'l', type: 'bool', description: 'Download lyrics if available', valueDescription: 'yes|no', default: config.getLyrics },
-        { name: 'cover', shortName: 'c', type: 'bool', description: 'Download cover art', valueDescription: 'yes|no', default: config.getCover },
-        { name: 'overwrite', shortName: 'ow', type: 'bool', description: 'Overwrite existing downloads', valueDescription: 'yes|no', default: config.overwriteExisting }
-    ],
-    tidalTrackQualities: {
-        'LOW': 'HIGH',
-        'HIGH': 'LOSSLESS',
-        'MAX': 'HI_RES_LOSSLESS'
-    },
-    tidalVideoQualities: {
-        'LOW': '480',
-        'MEDIUM': '720',
-        'HIGH': '1080',
-        'MAX': null
-    },
-    tidalVideoCoverSizes: {
-        '640': '640x640',
-        '1280': '1280x1280',
-        '1280x720': '1280x720',
-        '640x360': '640x360',
-        'ORIGINAL': 'origin'
-    },
-    tidalAlbumCoverSizes: {
-        '320': '320x320',
-        '640': '640x640',
-        '1280': '1280x1280',
-        'ORIGINAL': 'origin'
-    },
-    tidalArtistPictureSizes: {
-        'ORIGINAL': 'origin'
-    },
-    tidalPlaylistImageSizes: {
-        '320': '320x320',
-        '640': '640x640',
-        '1280': '1280x1280',
-        'ORIGINAL': 'origin'
-    },
-    tidalMixImageSizes: {
-        'SMALL': 'SMALL',
-        'MEDIUM': 'MEDIUM',
-        'LARGE': 'LARGE'
-    },
-    tidalCredits: [
-        // NOTE: found from searching various albums and tracks, theres definitely more
-
-        // Found in both track and album credits
-        { type: 'Producer' },
-        { type: 'Assistant Engineer' },
-        { type: 'Engineer' },
-
-        // Track credits
-        { type: 'Executive Producer' },
-        { type: 'Composer' },
-        { type: 'Mastering Engineer' },
-        { type: 'Mixing Engineer' },
-        { type: 'Additional Engineer' },
-        { type: 'Recording Engineer' },
-        { type: 'Associated Performer' },
-        { type: 'Assistant Producer' },
-        { type: 'Assistant Recording Engineer' },
-        { type: 'Assistant Mixing Engineer' },
-        { type: 'Featured Artist' },
-        { type: 'Remixer', },
-        { type: 'Drum Kit' },
-        { type: 'Synthesizer' },
-        { type: 'Mixer' },
-        { type: 'Lyricist' },
-        { type: 'Background Vocal' },
-        { type: 'Talkbox' },
-        { type: 'Vocoder' },
-        { type: 'Vocal' },
-        { type: 'Guitar' },
-        { type: 'Bass' },
-        { type: 'Piano' },
-        { type: 'Drums' },
-        { type: 'Drum' },
-        { type: 'Horn' },
-        { type: 'Strings' },
-        { type: 'Whistles' },
-        { type: 'Keyboards' },
-
-        // Album credits
-        { type: 'Primary Artist' },
-        { type: 'Arranger' },
-        { type: 'Mixing' },
-        { type: 'Mixing Assistant' },
-        { type: 'Mastering' },
-        { type: 'Music Publisher', tagName: 'publisher' },
-        { type: 'Record Label', tagName: 'label' },
-        { type: 'Layout', tagName: null },
-        { type: 'Artwork', tagName: null },
-        { type: 'Package Design', tagName: null },
-        { type: 'Art Direction', tagName: null },
-        { type: 'Design', tagName: null },
-        { type: 'Vocals', tagName: null },
-        { type: 'Graphic Design', tagName: null },
-        
-        // Unknown
-        { type: 'Additional Mixing Engineer' },
-        { type: 'Keyboard' },
-        { type: 'Banjo' },
-        { type: 'Vocalist' },
-        { type: 'Vocal Producer' },
-        { type: 'Vocal Arranger' },
-        { type: 'Programmer' },
-        { type: 'Mastering Second Engineer' },
-        { type: 'Production Coordinator' },
-        { type: 'Sequencer' },
-        { type: 'Conductor' },
-        { type: 'Programming' },
-        { type: 'Saxophone' },
-        { type: 'Recording' },
-        { type: 'Second Engineer' },
-        { type: 'Co-Producer' },
-        { type: 'Violin' },
-        { type: 'Cello' },
-        { type: 'Percussion' },
-        { type: 'Coordination' },
-        { type: 'Background Vocalist' },
-        { type: 'A&R' },
-        { type: 'Creative Director' },
-        { type: 'Drum Programming' },
-        { type: 'Studio Personnel' },
-        { type: 'Management' },
-        { type: 'Additional Producer' },
-        { type: 'Writer' },
-        { type: 'SoundEffects', tagName: 'sound_effects' },
-        { type: 'DrumProgrammer', tagName: 'drum_programmer' },
-        { type: 'MusicProduction', tagName: 'music_production' },
-        { type: 'BassVocalist', tagName: 'bass_vocalist' },
-        { type: 'AdditionalProducer', tagName: 'additional_producer' },
-        { type: 'AdditionalVocalist', tagName: 'additional_vocalist' },
-        { type: 'RecordingArranger', tagName: 'recording_arranger' },
-        { type: 'ChoirArranger', tagName: 'choir_arranger' },
-        { type: 'Photography', tagName: null },
-        { type: 'Original Paintings', tagName: null },
-        { type: 'Marketing', tagName: null },
-    ].map(credit => {
-        // Fill blank tagName
-        if (credit.tagName === undefined) credit.tagName = credit.type.toLowerCase().replace(/\s/g, '_');
-        return credit;
-    })
-}
\ No newline at end of file
diff --git a/src/globals.ts b/src/globals.ts
new file mode 100644
index 0000000..686a1b3
--- /dev/null
+++ b/src/globals.ts
@@ -0,0 +1,187 @@
+import fs from 'fs';
+import path from 'path';
+
+import parseConfig from './utils/parseConfig.js';
+import Logger from './utils/Logger.js';
+
+export declare const isBuild: boolean | undefined;
+
+export const execDir = typeof isBuild !== 'undefined' && isBuild ? path.dirname(process.execPath) : __dirname; // TODO: i dont like this
+
+// Read config
+export const configPath = path.resolve(execDir, 'config.json');
+if (!fs.existsSync(configPath)) fs.writeFileSync(configPath, JSON.stringify(require('./default.config.json'), null, 4));
+export const config = parseConfig(configPath);
+
+// Read secrets
+export const secretsPath = config.secretsPath ? path.resolve(execDir, config.secretsPath) : undefined;
+export const secrets = secretsPath && fs.existsSync(secretsPath) ? JSON.parse(fs.readFileSync(secretsPath, 'utf-8')) : { };
+
+export const logger = new Logger();
+
+export const argOptions = [
+    { name: 'help', shortName: 'h', noValue: true, description: 'Displays this menu' },
+    { name: 'debug', noValue: true, description: 'Enable debug', hidden: true },
+
+    { name: 'track', shortName: 't', type: 'int', description: 'Download a track ID', valueDescription: 'track-id' },
+    { name: 'album', shortName: 'm', type: 'int', description: 'Download a album ID', valueDescription: 'album-id' },
+    { name: 'video', shortName: 'v', description: 'Download a video ID', valueDescription: 'video-id' },
+    { name: 'artist', shortName: 'a', type: 'int', description: 'Download an artist ID\'s discography', valueDescription: 'artist-id' },
+    { name: 'playlist', shortName: 'p', description: 'Download all items from a playlist UUID', valueDescription: 'playlist-uuid' },
+    { name: 'mix', shortName: 'x', description: 'Download all items from a mix ID', valueDescription: 'mix-id' },
+    { name: 'search', shortName: 's', description: 'Download top search', valueDescription: 'query' },
+    { name: 'search:track', shortName: 's:t', description: 'Download top search for a track', valueDescription: 'query' },
+    { name: 'search:album', shortName: 's:m', description: 'Download top search for a album', valueDescription: 'query' },
+    { name: 'search:video', shortName: 's:v', description: 'Download top search for a video', valueDescription: 'query' },
+    { name: 'search:artist', shortName: 's:a', description: 'Download top search for a artist', valueDescription: 'query' },
+    { name: 'search:playlist', shortName: 's:p', description: 'Download top search for a playlist', valueDescription: 'query' },
+    { name: 'url', shortName: 'u', description: 'Download from a TIDAL URL', valueDescription: 'url' },
+    { name: 'update', description: 'Update an existing file with metadata from TIDAL', valueDescription: 'path' },
+    
+    { name: 'track-quality', shortName: 'tq', aliases: ['quality'], shortAliases: ['q'], description: 'Track download quality', valueDescription: 'low|high|max', default: config.trackQuality },
+    { name: 'video-quality', shortName: 'vq', description: 'Video download quality', valueDescription: 'low|high|max|<height>', default: config.videoQuality },
+    { name: 'dolby-atmos', shortName: 'da', type: 'bool', description: 'Downloads in immersive audio when available. Requires a token from a mobile device', valueDescription: 'yes|no', default: config.useDolbyAtmos, hidden: true },
+    { name: 'metadata', shortName: 'md', type: 'bool', description: 'Embed metadata to download', valueDescription: 'yes|no', default: config.embedMetadata },
+    { name: 'lyrics', shortName: 'l', type: 'bool', description: 'Download lyrics if available', valueDescription: 'yes|no', default: config.getLyrics },
+    { name: 'cover', shortName: 'c', type: 'bool', description: 'Download cover art', valueDescription: 'yes|no', default: config.getCover },
+    { name: 'overwrite', shortName: 'ow', type: 'bool', description: 'Overwrite existing downloads', valueDescription: 'yes|no', default: config.overwriteExisting }
+];
+
+export const tidalTrackQualities = {
+    'LOW': 'HIGH',
+    'HIGH': 'LOSSLESS',
+    'MAX': 'HI_RES_LOSSLESS'
+}
+export const tidalVideoQualities = {
+    'LOW': '480',
+    'MEDIUM': '720',
+    'HIGH': '1080',
+    'MAX': null
+}
+export const tidalVideoCoverSizes = {
+    '640': '640x640',
+    '1280': '1280x1280',
+    '1280x720': '1280x720',
+    '640x360': '640x360',
+    'ORIGINAL': 'origin'
+}
+export const tidalAlbumCoverSizes = {
+    '320': '320x320',
+    '640': '640x640',
+    '1280': '1280x1280',
+    'ORIGINAL': 'origin'
+}
+export const tidalArtistPictureSizes = {
+    'ORIGINAL': 'origin'
+}
+export const tidalPlaylistImageSizes = {
+    '320': '320x320',
+    '640': '640x640',
+    '1280': '1280x1280',
+    'ORIGINAL': 'origin'
+}
+export const tidalMixImageSizes = {
+    'SMALL': 'SMALL',
+    'MEDIUM': 'MEDIUM',
+    'LARGE': 'LARGE'
+}
+export const tidalCredits = [
+    // NOTE: found from searching various albums and tracks, theres definitely more
+
+    // Found in both track and album credits
+    { type: 'Producer' },
+    { type: 'Assistant Engineer' },
+    { type: 'Engineer' },
+
+    // Track credits
+    { type: 'Executive Producer' },
+    { type: 'Composer' },
+    { type: 'Mastering Engineer' },
+    { type: 'Mixing Engineer' },
+    { type: 'Additional Engineer' },
+    { type: 'Recording Engineer' },
+    { type: 'Associated Performer' },
+    { type: 'Assistant Producer' },
+    { type: 'Assistant Recording Engineer' },
+    { type: 'Assistant Mixing Engineer' },
+    { type: 'Featured Artist' },
+    { type: 'Remixer', },
+    { type: 'Drum Kit' },
+    { type: 'Synthesizer' },
+    { type: 'Mixer' },
+    { type: 'Lyricist' },
+    { type: 'Background Vocal' },
+    { type: 'Talkbox' },
+    { type: 'Vocoder' },
+    { type: 'Vocal' },
+    { type: 'Guitar' },
+    { type: 'Bass' },
+    { type: 'Piano' },
+    { type: 'Drums' },
+    { type: 'Drum' },
+    { type: 'Horn' },
+    { type: 'Strings' },
+    { type: 'Whistles' },
+    { type: 'Keyboards' },
+
+    // Album credits
+    { type: 'Primary Artist' },
+    { type: 'Arranger' },
+    { type: 'Mixing' },
+    { type: 'Mixing Assistant' },
+    { type: 'Mastering' },
+    { type: 'Music Publisher', tagName: 'publisher' },
+    { type: 'Record Label', tagName: 'label' },
+    { type: 'Layout', tagName: null },
+    { type: 'Artwork', tagName: null },
+    { type: 'Package Design', tagName: null },
+    { type: 'Art Direction', tagName: null },
+    { type: 'Design', tagName: null },
+    { type: 'Vocals', tagName: null },
+    { type: 'Graphic Design', tagName: null },
+    
+    // Unknown
+    { type: 'Additional Mixing Engineer' },
+    { type: 'Keyboard' },
+    { type: 'Banjo' },
+    { type: 'Vocalist' },
+    { type: 'Vocal Producer' },
+    { type: 'Vocal Arranger' },
+    { type: 'Programmer' },
+    { type: 'Mastering Second Engineer' },
+    { type: 'Production Coordinator' },
+    { type: 'Sequencer' },
+    { type: 'Conductor' },
+    { type: 'Programming' },
+    { type: 'Saxophone' },
+    { type: 'Recording' },
+    { type: 'Second Engineer' },
+    { type: 'Co-Producer' },
+    { type: 'Violin' },
+    { type: 'Cello' },
+    { type: 'Percussion' },
+    { type: 'Coordination' },
+    { type: 'Background Vocalist' },
+    { type: 'A&R' },
+    { type: 'Creative Director' },
+    { type: 'Drum Programming' },
+    { type: 'Studio Personnel' },
+    { type: 'Management' },
+    { type: 'Additional Producer' },
+    { type: 'Writer' },
+    { type: 'SoundEffects', tagName: 'sound_effects' },
+    { type: 'DrumProgrammer', tagName: 'drum_programmer' },
+    { type: 'MusicProduction', tagName: 'music_production' },
+    { type: 'BassVocalist', tagName: 'bass_vocalist' },
+    { type: 'AdditionalProducer', tagName: 'additional_producer' },
+    { type: 'AdditionalVocalist', tagName: 'additional_vocalist' },
+    { type: 'RecordingArranger', tagName: 'recording_arranger' },
+    { type: 'ChoirArranger', tagName: 'choir_arranger' },
+    { type: 'Photography', tagName: null },
+    { type: 'Original Paintings', tagName: null },
+    { type: 'Marketing', tagName: null },
+].map((credit: { type: string; tagName?: string | null }) => {
+    // Fill blank tagName
+    if (credit.tagName === undefined) credit.tagName = credit.type.toLowerCase().replace(/\s/g, '_');
+    return credit;
+});
\ No newline at end of file
diff --git a/src/index.js b/src/index.ts
similarity index 73%
rename from src/index.js
rename to src/index.ts
index a2a360a..4dbc284 100644
--- a/src/index.js
+++ b/src/index.ts
@@ -1,21 +1,21 @@
-const fs = require('fs');
-const path = require('path');
-
-const requestDeviceAuthorization = require('./utils/requestDeviceAuthorization');
-const getToken = require('./utils/getToken');
-const getAlbum = require('./utils/getAlbum');
-const getArtist = require('./utils/getArtist');
-const getTrack = require('./utils/getTrack');
-const getVideo = require('./utils/getVideo');
-const getPlaylist = require('./utils/getPlaylist');
-const getMix = require('./utils/getMix');
-const search = require('./utils/search');
-const Args = require('./utils/Args');
-const formatPath = require('./utils/formatPath');
-const Logger = require('./utils/Logger');
-const Download = require('./utils/Download');
-
-const {
+import fs from 'fs';
+import path from 'path';
+
+import requestDeviceAuthorization from './utils/requestDeviceAuthorization';
+import getToken from './utils/getToken';
+import getAlbum from'./utils/getAlbum';
+import getArtist from'./utils/getArtist';
+import getTrack from './utils/getTrack';
+import getVideo from'./utils/getVideo';
+import getPlaylist from'./utils/getPlaylist';
+import getMix from'./utils/getMix';
+import search from'./utils/search';
+import Args from './utils/Args';
+import formatPath from'./utils/formatPath';
+import Logger from './utils/Logger';
+import Download from'./utils/Download';
+
+import {
     config,
     secrets,
     secretsPath,
@@ -24,7 +24,8 @@ const {
     logger,
     tidalTrackQualities,
     tidalVideoQualities
-} = require('./globals');
+} from './globals.js';
+import { Album, Artist, Mix, Playlist, Track, Video } from './types';
 
 const args = new Args(process.argv, argOptions);
 const options = {
@@ -58,7 +59,7 @@ const options = {
 };
 logger.debugLogs = options.debug;
 
-logger.debug(`Options:\n${JSON.stringify(options, null, 4)}`);
+logger.log(`Options:\n${JSON.stringify(options, null, 4)}`, 'debug');
 
 // Show help
 if (options.help || [
@@ -75,12 +76,22 @@ if (options.help || [
 (async () => {
     await authorize();
 
-    const tracks = [];
-    const albums = [];
-    const videos = [];
-    const artists = [];
-
-    const queue = []; // Tracks to be downloaded
+    const tracks: Track[] = [];
+    const albums: Album[] = [];
+    const videos: Video[] = [];
+    const artists: Artist[] = [];
+
+    // Tracks to be downloaded
+    const queue: {
+        track?: Track;
+        album?: Album;
+        video?: Video;
+        artists?: Artist[];
+        albumArtists?: Artist[];
+        playlist?: Playlist;
+        mix?: Mix;
+        itemIndex?: number;
+    }[] = [];
 
     for (const trackId of options.tracks) await addTrack(trackId); // Tracks
     for (const albumId of options.albums) await addAlbum(albumId); // Albums
@@ -91,7 +102,7 @@ if (options.help || [
 
     // Searches
     for (const { type, query } of options.searches) {
-        logger.info(`Searching for: ${Logger.applyColor({ bold: true }, query)}`, true);
+        logger.log(`Searching for: ${Logger.applyColor({ bold: true }, query)}`, 'info', true);
         const result = await search(query, 1).then(results => (
             type === 'track' ? results.tracks.map(value => ({ type, value })) :
             type === 'album' ? results.albums.map(value => ({ type, value })) :
@@ -101,12 +112,12 @@ if (options.help || [
             results.topResults
         )[0]);
 
-        if (result?.type === 'track') await addTrack(result.value.id); else
-        if (result?.type === 'album') await addAlbum(result.value.id); else
-        if (result?.type === 'video') await addVideo(result.value.id); else
-        if (result?.type === 'artist') await addArtist(result.value.id); else
-        if (result?.type === 'playlist') await addPlaylist(result.value.id); else
-        logger.error(`No search results for "${Logger.applyColor({ bold: true }, query)}"`, true, true);
+        if (result?.type === 'track') await addTrack((result.value as Track).id); else
+        if (result?.type === 'album') await addAlbum((result.value as Album).id); else
+        if (result?.type === 'video') await addVideo((result.value as Video).id); else
+        if (result?.type === 'artist') await addArtist((result.value as Artist).id); else
+        if (result?.type === 'playlist') await addPlaylist((result.value as Playlist).uuid); else
+        logger.log(`No search results for "${Logger.applyColor({ bold: true }, query)}"`, 'error', true, true);
     }
 
     // URLS
@@ -123,22 +134,22 @@ if (options.help || [
             if (type === 'artist') await addArtist(idInt); else
             if (type === 'playlist') await addPlaylist(id); else
             if (type === 'mix') await addMix(id); else
-            logger.error(`Unknown type "${Logger.applyColor({ bold: true }, type)}"`, true, true); // NOTE: not possible with current regex
+            logger.log(`Unknown type "${Logger.applyColor({ bold: true }, type)}"`, 'error', true, true); // NOTE: not possible with current regex
         } else {
-            logger.error(`Couldn't determine URL "${Logger.applyColor({ bold: true }, url)}"`, true, true);
+            logger.log(`Couldn't determine URL "${Logger.applyColor({ bold: true }, url)}"`, 'error', true, true);
         }
     }
 
     // const startDate = Date.now();
 
     logger.emptyLine();
-    logger.info(`Downloading ${Object.entries({
-            track: queue.filter(item => item.track).length,
-            video: queue.filter(item => item.video).length,
+    logger.log(`Downloading ${Object.entries({
+            track: queue.filter((item: any) => item.track).length,
+            video: queue.filter((item: any) => item.video).length,
         })
             .filter(([type, count]) => count > 0)
             .map(([type, count]) => `${Logger.applyColor({ bold: true }, count)} ${type}${count !== 1 ? 's' : ''}`)
-            .join(', ')}...`);
+            .join(', ')}...`, 'info');
 
     for (let itemIndex = 0; itemIndex < queue.length; itemIndex++) {
         const item = queue[itemIndex];
@@ -157,7 +168,7 @@ if (options.help || [
             albumArtist: item.albumArtists?.[0],
             trackNumberPadded: item.track?.trackNumber?.toString().padStart(2, '0'), // TODO: maybe remove this and add a padding function in formatString?
             queueNum: itemIndex + 1,
-            itemNum: item.itemIndex + 1,
+            itemNum: item.itemIndex && item.itemIndex + 1,
             playlistCover: item.playlist ? item.playlist.images[config.playlistCoverSize?.toUpperCase()] || item.playlist.images['ORIGINAL'] : null,
             mixCover: item.mix ? item.mix.images[config.mixCoverSize?.toUpperCase()] || item.mix.images['LARGE'] : null,
             mixDetailCover: item.mix ? item.mix.detailImages[config.mixCoverSize?.toUpperCase()] || item.mix.images['LARGE'] : null, // not currently used
@@ -264,8 +275,8 @@ if (options.help || [
                 coverFilename,
                 playlistCoverFilename: (config.playlistCoverFilename && formatPath(config.playlistCoverFilename, details)) || (config.mixCoverFilename && formatPath(config.mixCoverFilename, details)),
                 playlistFileFilename: (config.playlistFileFilename && formatPath(config.playlistFileFilename, details)) || (config.mixFileFilename && formatPath(config.mixFileFilename, details)),
-                trackQuality: tidalTrackQualities[options.trackQuality] === undefined ? options.trackQuality : tidalTrackQualities[options.trackQuality],
-                videoQuality: tidalVideoQualities[options.videoQuality] === undefined ? options.videoQuality : tidalVideoQualities[options.videoQuality],
+                trackQuality: tidalTrackQualities[options.trackQuality as keyof typeof tidalTrackQualities] === undefined ? options.trackQuality : tidalTrackQualities[options.trackQuality as keyof typeof tidalTrackQualities],
+                videoQuality: tidalVideoQualities[options.videoQuality as keyof typeof tidalVideoQualities] === undefined ? options.videoQuality : tidalVideoQualities[options.videoQuality as keyof typeof tidalVideoQualities],
                 overwriteExisting: options.overwrite,
                 embedMetadata: options.metadata,
                 metadataEmbedder: config.metadataEmbedder,
@@ -290,9 +301,9 @@ if (options.help || [
     }
 
     // logger.emptyLine();
-    // logger.info(`Finished in ${((Date.now() - startDate) / 1000 / 60).toFixed(2)} minute(s)`)
+    // logger.log(`Finished in ${((Date.now() - startDate) / 1000 / 60).toFixed(2)} minute(s)`, 'info');
 
-    async function addTrack(trackId) {
+    async function addTrack(trackId: number) {
         const artists = [];
         const albumArtists = [];
 
@@ -312,13 +323,13 @@ if (options.help || [
                 albumArtists
             });
 
-            logger.info(`Found track: ${Logger.applyColor({ bold: true }, `${track.fullTitle} - ${track.artists[0].name}`)} (${track.id})`, true, true);
+            logger.log(`Found track: ${Logger.applyColor({ bold: true }, `${track.fullTitle} - ${track.artists[0].name}`)} (${track.id})`, 'info', true, true);
         } catch (err) {
-            logger.error(`Could not find track ID: ${Logger.applyColor({ bold: true }, trackId)}`, true, true);
+            logger.log(`Could not find track ID: ${Logger.applyColor({ bold: true }, trackId)}`, 'error', true, true);
         }
     }
 
-    async function addAlbum(albumId) {
+    async function addAlbum(albumId: number) {
         const tracks = [];
 
         try {
@@ -343,13 +354,13 @@ if (options.help || [
                 });
             }
 
-            logger.info(`Found album: ${Logger.applyColor({ bold: true }, `${album.title} - ${album.artists[0].name}`)} (${album.id})`, true, true);
+            logger.log(`Found album: ${Logger.applyColor({ bold: true }, `${album.title} - ${album.artists[0].name}`)} (${album.id})`, 'info', true, true);
         } catch (err) {
-            logger.error(`Could not find album ID: ${Logger.applyColor({ bold: true }, albumId)}`, true, true);
+            logger.log(`Could not find album ID: ${Logger.applyColor({ bold: true }, albumId)}`, 'error', true, true);
         }
     }
 
-    async function addVideo(videoId) {
+    async function addVideo(videoId: number) {
         const artists = [];
 
         try {
@@ -362,13 +373,13 @@ if (options.help || [
                 artists,
             });
 
-            logger.info(`Found video: ${Logger.applyColor({ bold: true }, `${video.title} - ${video.artists[0].name}`)} (${video.id})`, true, true);
+            logger.log(`Found video: ${Logger.applyColor({ bold: true }, `${video.title} - ${video.artists[0].name}`)} (${video.id})`, 'info', true, true);
         } catch (err) {
-            logger.error(`Could not find video ID: ${Logger.applyColor({ bold: true }, videoId)}`, true, true);
+            logger.log(`Could not find video ID: ${Logger.applyColor({ bold: true }, videoId)}`, 'error', true, true);
         }
     }
 
-    async function addArtist(artistId) {
+    async function addArtist(artistId: number) {
         try {
             const artist = await findArtist(artistId);
 
@@ -394,13 +405,13 @@ if (options.help || [
                 }
             }
 
-            logger.info(`Found artist: ${Logger.applyColor({ bold: true }, `${artist.name} - ${artist.albums.length} albums`)} (${artist.id})`, true, true);
+            logger.log(`Found artist: ${Logger.applyColor({ bold: true }, `${artist.name} - ${artist.albums.length} albums`)} (${artist.id})`, 'info', true, true);
         } catch (err) {
-            logger.error(`Could not find artist ID: ${Logger.applyColor({ bold: true }, artistId)}`, true, true);
+            logger.log(`Could not find artist ID: ${Logger.applyColor({ bold: true }, artistId)}`, 'error', true, true);
         }
     }
 
-    async function addPlaylist(playlistUuid) {
+    async function addPlaylist(playlistUuid: string) {
         try {
             const playlist = await getPlaylist(playlistUuid);
 
@@ -409,15 +420,17 @@ if (options.help || [
                 
                 // We don't need to fetch the track/video here, everything needed seems to be included already
                 if (itemType === 'track') {
+                    const track = item as Track;
+
                     const artists = [];
                     const albumArtists = [];
     
-                    const album = await findAlbum(item.album.id, item.album);
-                    for (const artist of item.artists || []) artists.push(await findArtist(artist.id, artist));
+                    const album = await findAlbum(track.album.id, track.album);
+                    for (const artist of track.artists || []) artists.push(await findArtist(artist.id, artist));
                     for (const artist of album.artists || []) albumArtists.push(await findArtist(artist.id, artist));
     
                     queue.push({
-                        track: item,
+                        track,
                         album,
                         artists,
                         albumArtists,
@@ -425,12 +438,14 @@ if (options.help || [
                         itemIndex
                     });
                 } else if (itemType === 'video') {
+                    const video = item as Video;
+
                     const artists = [];
 
-                    for (const artist of item.artists) artists.push(await findArtist(artist.id, artist));
+                    for (const artist of video.artists) artists.push(await findArtist(artist.id, artist));
 
                     queue.push({
-                        video: item,
+                        video,
                         artists,
                         playlist,
                         itemIndex
@@ -438,13 +453,13 @@ if (options.help || [
                 }
             }
 
-            logger.info(`Found playlist: ${Logger.applyColor({ bold: true }, `${playlist.title} - ${playlist.items.length} items`)} (${playlist.uuid})`, true, true);
+            logger.log(`Found playlist: ${Logger.applyColor({ bold: true }, `${playlist.title} - ${playlist.items.length} items`)} (${playlist.uuid})`, 'info', true, true);
         } catch (err) {
-            logger.error(`Could not find playlist UUID: ${Logger.applyColor({ bold: true }, playlistUuid)}`, true, true);
+            logger.log(`Could not find playlist UUID: ${Logger.applyColor({ bold: true }, playlistUuid)}`, 'error', true, true);
         }
     }
 
-    async function addMix(mixId) {
+    async function addMix(mixId: number) {
         try {
             const mix = await getMix(mixId);
 
@@ -469,25 +484,25 @@ if (options.help || [
                 });
             }
 
-            logger.info(`Found mix: ${Logger.applyColor({ bold: true }, `${mix.title} - ${mix.subTitle}`)} (${mix.id})`, true, true);
+            logger.log(`Found mix: ${Logger.applyColor({ bold: true }, `${mix.title} - ${mix.subTitle}`)} (${mix.id})`, 'info', true, true);
         } catch (err) {
-            logger.error(`Could not find mix ID: ${Logger.applyColor({ bold: true }, mixId)}`, true, true);
+            logger.log(`Could not find mix ID: ${Logger.applyColor({ bold: true }, mixId)}`, 'error', true, true);
         }
     }
 
-    async function findTrack(trackId, partialData) {
+    async function findTrack(trackId: number, partialData?: Track) {
         const foundTrack = tracks.find(track => track.id === trackId);
         if (foundTrack) {
-            logger.debug(`Found already fetched track: ${trackId}`);
+            logger.log(`Found already fetched track: ${trackId}`, 'debug');
             return foundTrack;
         } else if (partialData && config.forcePartialData) {
-            logger.warn(`Using partial data for track ${Logger.applyColor({ bold: true }, trackId)}, some information may be missing!`, true, true);
+            logger.log(`Using partial data for track ${Logger.applyColor({ bold: true }, trackId)}, some information may be missing!`, 'warn', true, true);
             return partialData;
         } else {
-            logger.info(`Getting information about track: ${Logger.applyColor({ bold: true }, trackId)}`, true);
+            logger.log(`Getting information about track: ${Logger.applyColor({ bold: true }, trackId)}`, 'info', true);
             const track = await getTrack(trackId).catch(err => {
                 if (partialData && config.partialDataFallback) {
-                    logger.warn(`Failed to get track ${Logger.applyColor({ bold: true }, trackId)}, some information may be missing!`, true, true);
+                    logger.log(`Failed to get track ${Logger.applyColor({ bold: true }, trackId)}, some information may be missing!`, 'warn', true, true);
                     return partialData;
                 } else throw err;
             });
@@ -496,19 +511,19 @@ if (options.help || [
         }
     }
 
-    async function findAlbum(albumId, partialData) {
+    async function findAlbum(albumId: number, partialData?: Album) {
         const foundAlbum = albums.find(album => album.id === albumId);
         if (foundAlbum) {
-            logger.debug(`Found already fetched album: ${albumId}`);
+            logger.log(`Found already fetched album: ${albumId}`, 'debug');
             return foundAlbum;
         } else if (partialData && config.forcePartialData) {
-            logger.warn(`Using partial data for album ${Logger.applyColor({ bold: true }, albumId)}, some information may be missing!`, true, true);
+            logger.log(`Using partial data for album ${Logger.applyColor({ bold: true }, albumId)}, some information may be missing!`, 'warn', true, true);
             return partialData;
         } else {
-            logger.info(`Getting information about album: ${Logger.applyColor({ bold: true }, albumId)}`, true);
+            logger.log(`Getting information about album: ${Logger.applyColor({ bold: true }, albumId)}`, 'info', true);
             const album = await getAlbum(albumId).catch(err => {
                 if (partialData && config.partialDataFallback) {
-                    logger.warn(`Failed to get album ${Logger.applyColor({ bold: true }, albumId)}, some information may be missing!`, true, true);
+                    logger.log(`Failed to get album ${Logger.applyColor({ bold: true }, albumId)}, some information may be missing!`, 'warn', true, true);
                     return partialData;
                 } else throw err;
             });
@@ -517,32 +532,32 @@ if (options.help || [
         }
     }
     
-    async function findVideo(videoId) {
-        const foundVideo = videos.find(video => video.id === videoId);
+    async function findVideo(videoId: number): Promise<any> {
+        const foundVideo = videos.find((video: any) => video.id === videoId);
         if (foundVideo) {
-            logger.debug(`Found already fetched video: ${videoId}`);
+            logger.log(`Found already fetched video: ${videoId}`, 'debug');
             return videoId;
         } else {
-            logger.info(`Getting information about video: ${Logger.applyColor({ bold: true }, videoId)}`, true);
+            logger.log(`Getting information about video: ${Logger.applyColor({ bold: true }, videoId)}`, 'info', true);
             const video = await getVideo(videoId);
             videos.push(video);
             return video;
         }
     }
 
-    async function findArtist(artistId, partialData) {
+    async function findArtist(artistId: number, partialData?: Artist) {
         const foundArtist = artists.find(artist => artist.id === artistId);
         if (foundArtist) {
-            logger.debug(`Found already fetched artist: ${artistId}`);
+            logger.log(`Found already fetched artist: ${artistId}`, 'debug');
             return foundArtist;
         } else if (partialData && config.forcePartialData) {
-            logger.warn(`Using partial data for artist ${Logger.applyColor({ bold: true }, artistId)}, some information may be missing!`, true, true);
+            logger.log(`Using partial data for artist ${Logger.applyColor({ bold: true }, artistId)}, some information may be missing!`, 'warn', true, true);
             return partialData;
         } else {
-            logger.info(`Getting information about artist: ${Logger.applyColor({ bold: true }, artistId)}`, true);
+            logger.log(`Getting information about artist: ${Logger.applyColor({ bold: true }, artistId)}`, 'info', true);
             const artist = await getArtist(artistId).catch(err => {
                 if (partialData && config.partialDataFallback) {
-                    logger.warn(`Failed to get artist ${Logger.applyColor({ bold: true }, artistId)}, some information may be missing!`, true, true);
+                    logger.log(`Failed to get artist ${Logger.applyColor({ bold: true }, artistId)}, some information may be missing!`, 'warn', true, true);
                     return partialData;
                 } else throw err;
             });
@@ -554,11 +569,11 @@ if (options.help || [
 
 async function authorize() {
     if (secrets.accessToken &&
-        secrets.accessTokenExpiry > Date.now()) return logger.debug('Token still valid, not refreshing'); // Previous token is still valid
+        secrets.accessTokenExpiry > Date.now()) return logger.log('Token still valid, not refreshing', 'debug'); // Previous token is still valid
 
     if (secrets.refreshToken && secrets.clientId && secrets.clientSecret) {
         // Refresh token exists
-        logger.info('Refreshing token');
+        logger.log('Refreshing token', 'info');
         await getToken('refresh_token', {
             refreshToken: secrets.refreshToken,
             clientId: secrets.clientId,
@@ -572,17 +587,17 @@ async function authorize() {
             secrets.countryCode = token.user?.countryCode;
             secrets.userId = token.user_id;
         }).catch(err => {
-            logger.error(`Failed to refresh token: ${err?.error_description || 'No error description'} [${err?.sub_status || 'No error code'}]`);
+            logger.log(`Failed to refresh token: ${err?.error_description || 'No error description'} [${err?.sub_status || 'No error code'}]`, 'error');
         });
     }
 
     if (!secrets.accessToken || secrets.accessTokenExpiry <= Date.now()) {
-        logger.debug('Attempting to authorize with device authorization');
+        logger.log('Attempting to authorize with device authorization', 'debug');
         await authorizeWithDeviceAuthorization({
             clientId: config.clientId,
             clientSecret: config.clientSecret,
             scope: config.scope
-        }).then(token => {
+        }).then((token: any) => {
             secrets.tokenType = token.token_type;
             secrets.accessToken = token.access_token;
             secrets.accessTokenExpiry = Date.now() + (token.expires_in * 1000);
@@ -600,9 +615,13 @@ async function authorize() {
     if (secretsPath) fs.writeFileSync(secretsPath, JSON.stringify(secrets, null, 4));
 }
 
-async function authorizeWithDeviceAuthorization(params = {}) {
+async function authorizeWithDeviceAuthorization(params: {
+    clientId: string;
+    clientSecret: string;
+    scope: string[];
+}) {
     const deviceAuthorization = await requestDeviceAuthorization(params.clientId, params.scope);
-    logger.info(`Please visit ${Logger.applyColor({ bold: true }, `https://${deviceAuthorization.verificationUriComplete || `${deviceAuthorization.verificationUri || 'link.tidal.com'}/${deviceAuthorization.userCode}`}`)} to log in to your TIDAL account.\nWaiting for authorization...`);
+    logger.log(`Please visit ${Logger.applyColor({ bold: true }, `https://${deviceAuthorization.verificationUriComplete || `${deviceAuthorization.verificationUri || 'link.tidal.com'}/${deviceAuthorization.userCode}`}`)} to log in to your TIDAL account.\nWaiting for authorization...`, 'info');
 
     const deviceAuthorizationStart = Date.now();
     const token = await new Promise((resolve, reject) => {
@@ -618,7 +637,7 @@ async function authorizeWithDeviceAuthorization(params = {}) {
                 }).catch(err => {
                     if (Date.now() - deviceAuthorizationStart >= deviceAuthorization.expiresIn * 1000) {
                         // Code expired
-                        logger.warn('Code expired!');
+                        logger.log('Code expired!', 'warn');
                         return authorizeWithDeviceAuthorization(params);
                     }
                     if (err.sub_status !== 1002) {
@@ -637,8 +656,7 @@ async function authorizeWithDeviceAuthorization(params = {}) {
 
 function showHelp() {
     // hell hell hell hell hell
-    logger.log(null,
-`
+    logger.log(`
 Usage:
   ${process.argv0}${path.dirname(process.execPath) === process.cwd() ? '' : ' .'} [options...]
 Options:
diff --git a/src/types.ts b/src/types.ts
new file mode 100644
index 0000000..3fa8e9d
--- /dev/null
+++ b/src/types.ts
@@ -0,0 +1,128 @@
+// TODO: find optional stuff in all types
+// TODO: move fake enums in global.ts to here
+
+export type Track = {
+    id: number;
+    title: string;
+    fullTitle: string;
+    version?: string;
+    duration: number;
+    upload: boolean;
+    copyright: string;
+    explicit: boolean;
+    mixId: string;
+    isrc: string;
+    quality: string; // TODO: enum
+    modes: string[]; // TODO: enum
+    qualityTypes: string[]; // TODO: enum
+    trackNumber: number;
+    volumeNumber: number;
+    replayGain: number;
+    peak: number;
+    bpm: number;
+    key: string; // TODO: enum?
+    keyScale: string; // TODO: enum
+    url: string;
+    artists: Artist[];
+    album: Album;
+};
+
+export type Album = {
+    id: number;
+    title: string;
+    version?: string;
+    description: string;
+    type: string; // TODO: enum
+    duration: number;
+    upload: boolean;
+    trackCount: number;
+    volumeCount: number;
+    releaseDate: string;
+    copyright: string;
+    explicit: boolean;
+    upc: string;
+    covers?: any; // TODO: type
+    videoCovers?: any; // TODO: type
+    quality: string; // TODO: enum
+    modes: string[]; // TODO: enum
+    qualityTypes: string[]; // TODO: enum
+    credits?: Credit[];
+    trackCredits?: { track: Track; credits: Credit[]; }[];
+    review?: {
+        originalText: string;
+        text: string;
+        source: string;
+    };
+    url: string;
+    artists: Artist[];
+    tracks: Track[];
+};
+
+export type Artist = {
+    id: number;
+    name: number;
+    biography?: {
+        originalText: string;
+        text: string;
+        source: string;
+    };
+    pictures?: any; // TODO: type
+    types: string[]; // TODO: enum
+    roles: { id: number; category: string; }[]; // TODO: enum on category
+    albums: Album[];
+};
+
+export type Video = {
+    id: number;
+    title: string;
+    type: string; // TODO: enum
+    duration: number;
+    releaseDate: string;
+    explicit: boolean;
+    quality: string; // TODO: enum
+    images?: any;
+    trackNumber: number;
+    volumeNumber: number;
+    artists: Artist[];
+};
+
+export type Playlist = {
+    uuid: string;
+    title: string;
+    description: string;
+    duration: number;
+    images?: any; // TODO
+    customImage: string;
+    sharing: SharingLevel;
+    created: string;
+    lastUpdated: string;
+    items: (
+        { type: 'track', item: Track } |
+        { type: 'video', item: Video }
+    )[];
+}
+
+export type Mix = {
+    id: string;
+    title: string;
+    subTitle: string;
+    shortSubTitle: string;
+    description: string;
+    images: any; // TODO
+    detailImages: any; // TODO
+    tracks: Track[];
+};
+
+export type Credit = {
+    type: string;
+    tagName: string;
+    contributors: {
+        name: string;
+        id: number;
+    }[];
+};
+
+export enum SharingLevel {
+    PUBLIC = 'PUBLIC',
+    PRIVATE = 'PRIVATE'
+};
\ No newline at end of file
diff --git a/src/utils/Args.js b/src/utils/Args.ts
similarity index 61%
rename from src/utils/Args.js
rename to src/utils/Args.ts
index e05999f..8642aed 100644
--- a/src/utils/Args.js
+++ b/src/utils/Args.ts
@@ -1,7 +1,22 @@
-class Args {
-    args = [];
 
-    constructor(argv = process.argv, argOptions = []) {
+type Options = {
+    name: string;
+    aliases?: string[];
+    shortName?: string;
+    shortAliases?: string[];
+    type?: string;
+    noValue?: boolean;
+    default?: any;
+}
+
+export default class Args {
+    args: {
+        name: string;
+        value: any;
+        options: Options;
+    }[] = [];
+
+    constructor(argv: string[] = process.argv, argOptions: Options[] = []) {
         argv.forEach((arg, argIndex) => {
             const shortArg = arg.match(/^-([^-][^\s]*)$/)?.[1];
             const longArg = arg.match(/^--([^-][^\s]*)$/)?.[1];
@@ -9,10 +24,10 @@ class Args {
             if (!argName) return;
 
             const options = argOptions.find(options => {
+                if (options.name === longArg) return true;
+                if (longArg && options.aliases && options.aliases.includes(longArg)) return true;
                 if (options.shortName && options.shortName === shortArg) return true;
-                if (options.shortAliases && options.shortAliases.includes(shortArg)) return true;
-                if (options.name && options.name === longArg) return true;
-                if (options.aliases && options.aliases.includes(longArg)) return true;
+                if (shortArg && options.shortAliases && options.shortAliases.includes(shortArg)) return true;
             });
             if (!options) return;
 
@@ -34,13 +49,11 @@ class Args {
         });
     }
 
-    get(name) {
+    get(name: string) {
         return this.getAll(name)[0];
     }
 
-    getAll(name) {
-        return this.args.filter(arg => arg.name === name).map(arg => arg.value ?? arg.default);
+    getAll(name: string) {
+        return this.args.filter(arg => arg.name === name).map(arg => arg.value ?? arg.options.default);
     }
-}
-
-module.exports = Args;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/Download.js b/src/utils/Download.ts
similarity index 84%
rename from src/utils/Download.js
rename to src/utils/Download.ts
index 896e6ae..15f14f7 100644
--- a/src/utils/Download.js
+++ b/src/utils/Download.ts
@@ -1,21 +1,61 @@
-const fs = require('fs');
-const path = require('path');
-const { setTimeout } = require('timers/promises');
-
-const Logger = require('./Logger');
-const getPlaybackInfo = require('./getPlaybackInfo');
-const getTrackManifest = require('./getTrackManifest');
-const parseManifest = require('./parseManifest');
-const createMedia = require('./createMedia');
-const embedMetadata = require('./embedMetadata');
-const extractContainer = require('./extractContainer');
-const getLyrics = require('./getLyrics');
-const formatString = require('./formatString');
-const normalizeTag = require('./normalizeTag');
-const capitalize = require('./capitalize');
-
-class Download {
-    constructor(options = { }) {
+import fs from 'fs';
+import path from 'path';
+import { setTimeout } from 'timers/promises';
+
+import Logger from './Logger';
+import getPlaybackInfo from './getPlaybackInfo';
+// import getTrackManifest from './getTrackManifest';
+import parseManifest from './parseManifest';
+import createMedia from './createMedia';
+import embedMetadata from './embedMetadata';
+import extractContainer from './extractContainer';
+import getLyrics from './getLyrics';
+import formatString from './formatString';
+import normalizeTag from './normalizeTag';
+import capitalize from './capitalize';
+
+export default class Download {
+    details;
+    logger;
+    directory;
+    mediaFilename;
+    coverFilename;
+    playlistCoverFilename;
+    playlistFileFilename;
+    trackQuality;
+    videoQuality;
+    overwriteExisting;
+    embedMetadata;
+    metadataEmbedder;
+    keepCoverFile;
+    getCover;
+    getLyrics;
+    syncedLyricsOnly;
+    plainLyricsOnly;
+    externalLyrics;
+    useArtistsTag;
+    artistTagSeparator;
+    roleTagSeparator;
+    customMetadata;
+    keepOriginalFile;
+    segmentWaitMin;
+    segmentWaitMax;
+    downloadLogPadding;
+    logPrefix;
+    useDolbyAtmos;
+
+    playbackInfo;
+    manifest;
+    segmentUrls;
+    originalExtension;
+    mediaExtension;
+    coverExtension;
+    lyrics;
+    metadata;
+
+    fileStream?: fs.WriteStream;
+
+    constructor(options: any = { }) {
         this.details = options.details;
         this.logger = options.logger;
         this.directory = options.directory;
@@ -69,7 +109,7 @@ class Download {
         if (!this.keepOriginalFile) fs.unlinkSync(this.getOriginalPath()); // Delete container file
         if (!this.keepCoverFile && fs.existsSync(this.getCoverPath())) fs.unlinkSync(this.getCoverPath()); // Delete cover file
 
-        this.log(`Completed in ${Math.floor((Date.now() - startDate) / 1000)}s ${Logger.applyColor({ bold: true }, `[${[this.playbackInfo.bitDepth && this.playbackInfo.sampleRate && `${this.playbackInfo.bitDepth}-bit/${this.playbackInfo.sampleRate / 1000} kHz`, `${(this.fileStream.bytesWritten / 1024 / 1024).toFixed(2)} MB`].filter(i => i).join(', ')}]`)}`);
+        this.log(`Completed in ${Math.floor((Date.now() - startDate) / 1000)}s ${Logger.applyColor({ bold: true }, `[${[this.playbackInfo.bitDepth && this.playbackInfo.sampleRate && `${this.playbackInfo.bitDepth}-bit/${this.playbackInfo.sampleRate / 1000} kHz`, `${(this.fileStream!.bytesWritten / 1024 / 1024).toFixed(2)} MB`].filter(i => i).join(', ')}]`)}`);
     }
 
     async createPlaylist() {
@@ -118,13 +158,13 @@ class Download {
             const segmentManifests = this.manifest.mainManifests[0].segmentManifests;
 
             const segmentManifest = this.videoQuality ?
-                segmentManifests.reduce((closest, curr) => {
+                segmentManifests.reduce((closest: any, curr: any) => {
                     const height = parseInt(curr.resolution.split('x')[1], 10);
                     const closestHeight = parseInt(closest.resolution.split('x')[1], 10);
                     const targetHeight = parseInt(this.videoQuality, 10);
                     return Math.abs(height - targetHeight) < Math.abs(closestHeight - targetHeight) ? curr : closest;
                 }) :
-                segmentManifests.reduce((highest, curr) => {
+                segmentManifests.reduce((highest: any, curr: any) => {
                     const height = parseInt(curr.resolution.split('x')[1], 10);
                     const highestHeight = parseInt(highest.resolution.split('x')[1], 10);
                     return height > highestHeight ? curr : highest;
@@ -168,10 +208,8 @@ class Download {
 
         // Add to M3U playlist
         if (this.playlistFileFilename && fs.existsSync(this.getPlaylistFilePath())) {
-            // #EXTINF:<duration>,<artist names seperated with ", "> - <full title>
-            // fs.appendFileSync(this.getPlaylistFilePath(), `#EXTINF:${this.details.duration},${this.details.artists.map(artist => artist.name).join(', ')} - ${this.details.title}\r\n${path.basename(this.getMediaPath())}\r\n`);
             // #EXTINF:<duration>,<main artist> - <full title>
-            fs.appendFileSync(this.getPlaylistFilePath(), `#EXTINF:${this.details.duration},${this.details.artist.name} - ${this.details.title}\r\n${path.basename(this.getMediaPath())}\r\n`);
+            fs.appendFileSync(this.getPlaylistFilePath(), `#EXTINF:${this.details.duration / 1000},${this.details.artist.name} - ${this.details.title}\r\n${path.basename(this.getMediaPath())}\r\n`);
         }
 
         // Metadata
@@ -179,19 +217,19 @@ class Download {
         const track = this.details.track;
 
         const albumCredits = this.details.album?.credits || [];
-        const trackCredits = this.details.album?.trackCredits?.find(({ track }) => track.id === this.details.id)?.credits || [];
+        const trackCredits = this.details.album?.trackCredits?.find(({ track }: any) => track.id === this.details.id)?.credits || [];
 
-        const customMetadata = this.customMetadata?.map(i => ([i[0], formatString(i[1], this.details)])) || [];
-        const creditMetadata = [...trackCredits, ...albumCredits].map(credit => credit.tagName ? [credit.tagName, normalizeTag(credit.contributors.map(i => i.name), this.roleTagSeparator)] : null).filter(i => i);
+        const customMetadata = this.customMetadata?.map((i: any) => ([i[0], formatString(i[1], this.details)])) || [];
+        const creditMetadata = [...trackCredits, ...albumCredits].map(credit => credit.tagName ? [credit.tagName, normalizeTag(credit.contributors.map((i: any) => i.name), this.roleTagSeparator)] : null).filter(i => i);
 
         this.metadata = [
             ['title', this.details.title],
-            ['artist', normalizeTag(this.details.artists?.map(i => i.name), !this.useArtistsTag ? this.artistTagSeparator : null)],
-            ['artists', this.useArtistsTag ? normalizeTag(this.details.artists?.map(i => i.name), this.artistTagSeparator) : null],
+            ['artist', normalizeTag(this.details.artists?.map((i: any) => i.name), !this.useArtistsTag ? this.artistTagSeparator : null)],
+            ['artists', this.useArtistsTag ? normalizeTag(this.details.artists?.map((i: any) => i.name), this.artistTagSeparator) : null],
             ['version', track?.version],
             ['album', album?.title],
-            ['albumartist', normalizeTag(this.details.albumArtists?.map(i => i.name), !this.useArtistsTag ? this.artistTagSeparator : null)],
-            ['albumartists', this.useArtistsTag ? normalizeTag(this.details.albumArtists?.map(i => i.name), this.artistTagSeparator) : null],
+            ['albumartist', normalizeTag(this.details.albumArtists?.map((i: any) => i.name), !this.useArtistsTag ? this.artistTagSeparator : null)],
+            ['albumartists', this.useArtistsTag ? normalizeTag(this.details.albumArtists?.map((i: any) => i.name), this.artistTagSeparator) : null],
             ['albumversion', album?.version],
             ['releasetype', album?.type && album.type.length > 2 ? capitalize(album.type) : album?.type],
             ['date', this.details.releaseDate],
@@ -216,11 +254,11 @@ class Download {
         ].filter(([tag, value]) => value !== undefined && value !== null);
         
         // most overkill debug log ever
-        this.logger.debug(`Metadata:\n${this.metadata.map(([tag, value]) => {
+        this.logger.log(`Metadata:\n${this.metadata.map(([tag, value]: any) => {
             const padding = ' '.repeat(Logger.getDisplayedLength(this.logger.getLevel('debug')?.prefix || ''));
             const valuePrefix = `${tag}: `.padEnd(25, ' ');
             return `${padding}${valuePrefix}${value.toString().replace(/\n/g, `\n${padding}${' '.repeat(Logger.getDisplayedLength(valuePrefix))}`)}`;
-        }).join('\n')}`);
+        }).join('\n')}`, 'debug');
     }
         
     async downloadSegments() {
@@ -236,7 +274,7 @@ class Download {
 
             if (!this.fileStream.write(segmentData)) {
                 // buffer full, wait for drain
-                await new Promise(resolve => this.fileStream.once('drain', resolve));
+                await new Promise(resolve => this.fileStream!.once('drain', resolve));
             }
 
             const delay = Math.floor(Math.random() * (this.segmentWaitMax - this.segmentWaitMin + 1) + this.segmentWaitMin);
@@ -298,17 +336,15 @@ class Download {
         return path.join(this.directory, `${this.playlistCoverFilename}${this.coverExtension}`);
     }
 
-    log(msg, level) {
+    log(msg: string, level?: string) {
         const levelPrefix = this.logger.getLevel(level)?.prefix;
         const logPrefix = this.logPrefix || `Downloading ${Logger.applyColor({ bold: true }, this.details.title)} - ${Logger.applyColor({ bold: true }, this.details.artist.name)}: `;
         const padding = ' '.repeat(Math.max(this.downloadLogPadding - Logger.getDisplayedLength(`${levelPrefix || ''}${logPrefix}`), 0));
         const log = `${logPrefix}${padding}${msg}`;
         if (level) {
-            this.logger.log(level, log, true, true);
+            this.logger.log(log, level, true, true);
         } else {
-            this.logger.info(log, true);
+            this.logger.log(log, 'info', true);
         }
     }
-}
-
-module.exports = Download;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/Logger.js b/src/utils/Logger.js
deleted file mode 100644
index 9ced6ce..0000000
--- a/src/utils/Logger.js
+++ /dev/null
@@ -1,110 +0,0 @@
-class Logger {
-    lastLog = '';
-
-    constructor(options = { }) {
-        this.debugLogs = options.debugLogs ?? false;
-        this.levelPadding = options.levelPadding ?? null;
-        this.levels = options.levels ?? [
-            { name: 'INFO', id: 'info', prefix: '' },
-            { name: 'WARN', id: 'warn', fgColor: 93 },
-            { name: 'ERROR', id: 'error', fgColor: 31 },
-            { name: 'DEBUG', id: 'debug', fgColor: 90 },
-        ];
-
-        for (const level of this.levels) {
-            if (!this.constructor.prototype[level.id]) {
-                this.constructor.prototype[level.id] = (msg, replaceLine, noStore) => this.log(level.id, msg, replaceLine, noStore);
-            }
-        }
-    }
-
-    static ANSI_CODES = {
-        RESET: 0,
-        BOLD: 1,
-        UNDERLINE: 4,
-        FG_BLACK: 30,
-        FG_RED: 31,
-        FG_GREEN: 32,
-        FG_YELLOW: 33,
-        FG_BLUE: 34,
-        FG_MAGENTA: 35,
-        FG_CYAN: 36,
-        FG_WHITE: 37,
-        FG_BRIGHT_BLACK: 90,
-        FG_BRIGHT_RED: 91,
-        FG_BRIGHT_GREEN: 92,
-        FG_BRIGHT_YELLOW: 93,
-        FG_BRIGHT_BLUE: 94,
-        FG_BRIGHT_MAGENTA: 95,
-        FG_BRIGHT_CYAN: 96,
-        FG_BRIGHT_WHITE: 97,
-        BG_BLACK: 40,
-        BG_RED: 41,
-        BG_GREEN: 42,
-        BG_YELLOW: 43,
-        BG_BLUE: 44,
-        BG_MAGENTA: 45,
-        BG_CYAN: 46,
-        BG_WHITE: 47,
-        BG_BRIGHT_BLACK: 100,
-        BG_BRIGHT_RED: 101,
-        BG_BRIGHT_GREEN: 102,
-        BG_BRIGHT_YELLOW: 103,
-        BG_BRIGHT_BLUE: 104,
-        BG_BRIGHT_MAGENTA: 105,
-        BG_BRIGHT_CYAN: 106,
-        BG_BRIGHT_WHITE: 107
-    };
-    
-    static applyColor(options = { }, string) {
-        const ansiCodes = [];
-        if (options.fg) ansiCodes.push(Logger.ANSI_CODES[`FG_${options.fg}`.toUpperCase()] ?? options.fg);
-        if (options.bg) ansiCodes.push(Logger.ANSI_CODES[`BG_${options.bg}`.toUpperCase()] ?? options.bg);
-        if (options.bold) ansiCodes.push(Logger.ANSI_CODES.BOLD);
-        if (options.underline) ansiCodes.push(Logger.ANSI_CODES.UNDERLINE);
-
-        return `\x1b[${ansiCodes.filter(i => i).join(';')}m${string !== undefined ? `${string}\x1b[${Logger.ANSI_CODES.RESET}m` : ''}`;
-    }
-
-    static getDisplayedLength(string) {
-        return string.replace(/\x1b\[[0-9;]*m/g, '').length;
-    }
-
-    emptyLine() {
-        this.log(null, '');
-    }
-
-    getLevel(levelId) {
-        const level = this.levels.find(i => i.id === levelId);
-        if (!level) return;
-
-        return {
-            ...level,
-            prefix: level.prefix ?? `[${Logger.applyColor({ fg: level.fgColor, bg: level.bgColor }, level.name)}]${this.levelPadding ? ' '.repeat(this.levelPadding - level.name.length) : ''} `,
-            suffix: level.suffix ?? ''
-        }
-    }
-
-    log(levelId, msg, replaceLine, noStore) {
-        const level = this.getLevel(levelId);
-        if (!this.debugLogs && level?.id === 'debug') return;
-
-        if (replaceLine && !this.debugLogs) {
-            const lastLogLines = this.lastLog.split('\n');
-            const [windowWidth, windowHeight] = process.stdout.getWindowSize();
-            const lastLogLineCount = lastLogLines.length + lastLogLines.reduce((sum, line) => sum + Math.floor((Logger.getDisplayedLength(line) - 1) / windowWidth), 0); // calculate line count, including \n's and text wrapping
-            
-            for (let lineIndex = 0; lineIndex < lastLogLineCount; lineIndex++) {
-                process.stdout.moveCursor(0, -1);
-                process.stdout.clearLine();
-            }
-        }
-
-        const log = `${level?.prefix || ''}${msg}${level?.suffix || ''}\n`;
-        this.lastLog = !noStore ? log : '';
-
-        process.stdout.write(log);
-    }
-}
-
-module.exports = Logger;
\ No newline at end of file
diff --git a/src/utils/Logger.ts b/src/utils/Logger.ts
new file mode 100644
index 0000000..33e0486
--- /dev/null
+++ b/src/utils/Logger.ts
@@ -0,0 +1,128 @@
+export enum ANSI_CODES {
+    RESET = 0,
+    BOLD = 1,
+    UNDERLINE = 4,
+    FG_BLACK = 30,
+    FG_RED = 31,
+    FG_GREEN = 32,
+    FG_YELLOW = 33,
+    FG_BLUE = 34,
+    FG_MAGENTA = 35,
+    FG_CYAN = 36,
+    FG_WHITE = 37,
+    FG_BRIGHT_BLACK = 90,
+    FG_BRIGHT_RED = 91,
+    FG_BRIGHT_GREEN = 92,
+    FG_BRIGHT_YELLOW = 93,
+    FG_BRIGHT_BLUE = 94,
+    FG_BRIGHT_MAGENTA = 95,
+    FG_BRIGHT_CYAN = 96,
+    FG_BRIGHT_WHITE = 97,
+    BG_BLACK = 40,
+    BG_RED = 41,
+    BG_GREEN = 42,
+    BG_YELLOW = 43,
+    BG_BLUE = 44,
+    BG_MAGENTA = 45,
+    BG_CYAN = 46,
+    BG_WHITE = 47,
+    BG_BRIGHT_BLACK = 100,
+    BG_BRIGHT_RED = 101,
+    BG_BRIGHT_GREEN = 102,
+    BG_BRIGHT_YELLOW = 103,
+    BG_BRIGHT_BLUE = 104,
+    BG_BRIGHT_MAGENTA = 105,
+    BG_BRIGHT_CYAN = 106,
+    BG_BRIGHT_WHITE = 107
+};
+export default class Logger {
+    debugLogs: boolean;
+    levelPadding?: number;
+    levels: {
+        id: string;
+        name: string;
+        prefix?: string;
+        suffix?: string;
+        fgColor?: string | number;
+        bgColor?: string | number;
+    }[];
+
+    lastLog = '';
+
+    constructor(options: {
+        debugLogs?: boolean;
+        levelPadding?: number;
+        levels?: {
+            id: string;
+            name: string;
+            prefix?: string;
+            suffix?: string;
+            fgColor?: string | number;
+            bgColor?: string | number;
+        }[];
+    } = { }) {
+        this.debugLogs = options.debugLogs ?? false;
+        this.levelPadding = options.levelPadding;
+        this.levels = options.levels ?? [
+            { name: 'INFO', id: 'info', prefix: '' },
+            { name: 'WARN', id: 'warn', fgColor: 93 },
+            { name: 'ERROR', id: 'error', fgColor: 31 },
+            { name: 'DEBUG', id: 'debug', fgColor: 90 },
+        ];
+    }
+    
+    static applyColor(options: {
+        fg?: string | number;
+        bg?: string | number;
+        bold?: boolean;
+        underline?: boolean;
+    } = { }, string: any) {
+        const ansiCodes = [];
+        if (options.fg) ansiCodes.push(ANSI_CODES[`FG_${options.fg}`.toUpperCase() as keyof typeof ANSI_CODES] ?? options.fg);
+        if (options.bg) ansiCodes.push(ANSI_CODES[`BG_${options.bg}`.toUpperCase() as keyof typeof ANSI_CODES] ?? options.bg);
+        if (options.bold) ansiCodes.push(ANSI_CODES.BOLD);
+        if (options.underline) ansiCodes.push(ANSI_CODES.UNDERLINE);
+
+        return `\x1b[${ansiCodes.filter(i => i).join(';')}m${string !== undefined ? `${string}\x1b[${ANSI_CODES.RESET}m` : ''}`;
+    }
+
+    static getDisplayedLength(string: string) {
+        return string.replace(/\x1b\[[0-9;]*m/g, '').length;
+    }
+
+    emptyLine() {
+        this.log('');
+    }
+
+    getLevel(levelId: any) {
+        const level = this.levels.find(i => i.id === levelId);
+        if (!level) return;
+
+        return {
+            ...level,
+            prefix: level.prefix ?? `[${Logger.applyColor({ fg: level.fgColor, bg: level.bgColor }, level.name)}]${this.levelPadding ? ' '.repeat(this.levelPadding - level.name.length) : ''} `,
+            suffix: level.suffix ?? ''
+        }
+    }
+
+    log(msg: string, levelId?: string, replaceLine?: boolean, noStore?: boolean) {
+        const level = this.getLevel(levelId);
+        if (!this.debugLogs && level?.id === 'debug') return;
+
+        if (replaceLine && !this.debugLogs) {
+            const lastLogLines = this.lastLog.split('\n');
+            const [windowWidth, windowHeight] = process.stdout.getWindowSize();
+            const lastLogLineCount = lastLogLines.length + lastLogLines.reduce((sum, line) => sum + Math.floor((Logger.getDisplayedLength(line) - 1) / windowWidth), 0); // calculate line count, including \n's and text wrapping
+            
+            for (let lineIndex = 0; lineIndex < lastLogLineCount; lineIndex++) {
+                process.stdout.moveCursor(0, -1);
+                process.stdout.clearLine(-1);
+            }
+        }
+
+        const log = `${level?.prefix || ''}${msg}${level?.suffix || ''}\n`;
+        this.lastLog = !noStore ? log : '';
+
+        process.stdout.write(log);
+    }
+}
\ No newline at end of file
diff --git a/src/utils/capitalize.js b/src/utils/capitalize.ts
similarity index 57%
rename from src/utils/capitalize.js
rename to src/utils/capitalize.ts
index d2e2257..c60154c 100644
--- a/src/utils/capitalize.js
+++ b/src/utils/capitalize.ts
@@ -1,5 +1,3 @@
-function capitalize(string) {
+export default function capitalize(string: string) {
     return `${string.charAt(0).toUpperCase()}${string.substring(1).toLowerCase()}`;
-}
-
-module.exports = capitalize;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/createMedia.js b/src/utils/createMedia.ts
similarity index 77%
rename from src/utils/createMedia.js
rename to src/utils/createMedia.ts
index 4a4b3df..bca307c 100644
--- a/src/utils/createMedia.js
+++ b/src/utils/createMedia.ts
@@ -1,8 +1,8 @@
-const spawn = require('./spawn');
+import spawn from './spawn';
 
-const { config } = require('../globals');
+import { config } from '../globals';
 
-function createMedia(inputPath, outputPath, metadata, coverPath, streams = 1) {
+export default async function createMedia(inputPath: string, outputPath: string, metadata: [string, string][], coverPath?: string, streams = 1) {
     return spawn(config.ffmpegPath, [
         '-i', inputPath,
         ...(coverPath ? [
@@ -20,6 +20,4 @@ function createMedia(inputPath, outputPath, metadata, coverPath, streams = 1) {
     ]).then(spawnedProcess => {
         if (spawnedProcess.code > 0) throw new Error(`Exited with code ${spawnedProcess.code}! Output:\n${spawnedProcess.stderr.toString()}`);
     });
-}
-
-module.exports = createMedia;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/embedMetadata.js b/src/utils/embedMetadata.ts
similarity index 70%
rename from src/utils/embedMetadata.js
rename to src/utils/embedMetadata.ts
index d64e311..3010f00 100644
--- a/src/utils/embedMetadata.js
+++ b/src/utils/embedMetadata.ts
@@ -1,8 +1,8 @@
-const spawn = require('./spawn');
+import spawn from './spawn';
 
-const { config } = require('../globals');
+import { config } from '../globals';
 
-function embedMetadata(file, tags) {
+export default function embedMetadata(file: string, tags: string[]) {
     return spawn(config.kid3CliPath, [
         ...tags.map(([tag, value, isFile]) => {
             if (isFile) {
@@ -15,8 +15,6 @@ function embedMetadata(file, tags) {
     ]);
 };
 
-function escapeQuotes(input) {
+function escapeQuotes(input: string) {
     return input.toString().replace(/"/g, i => `\\${i}`);
-}
-
-module.exports = embedMetadata;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/extractContainer.js b/src/utils/extractContainer.ts
similarity index 60%
rename from src/utils/extractContainer.js
rename to src/utils/extractContainer.ts
index dc55678..7b730de 100644
--- a/src/utils/extractContainer.js
+++ b/src/utils/extractContainer.ts
@@ -1,17 +1,15 @@
-const spawn = require('./spawn');
+import spawn from './spawn';
 
-const { config } = require('../globals');
+import { config } from '../globals';
 
-function extractAudioStream(inputPath, outputPath) {
+export default async function extractAudioStream(inputPath: string, outputPath: string) {
     return spawn(config.ffmpegPath, [
         '-i', inputPath,
         '-map_metadata', '-1',
         '-c', 'copy',
         outputPath,
         '-y'
-    ]).then(spawnedProcess => {
+    ]).then((spawnedProcess: any) => {
         if (spawnedProcess.code > 0) throw new Error(`Exited with code ${spawnedProcess.code}! Output:\n${spawnedProcess.stderr.toString()}`);
     });
-}
-
-module.exports = extractAudioStream;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/formatPath.js b/src/utils/formatPath.ts
similarity index 63%
rename from src/utils/formatPath.js
rename to src/utils/formatPath.ts
index 3923ff4..afb9e0f 100644
--- a/src/utils/formatPath.js
+++ b/src/utils/formatPath.ts
@@ -1,14 +1,12 @@
-const path = require('path');
+import path from 'path';
 
-const formatString = require('./formatString');
+import formatString from './formatString';
 
-function formatPath(unformattedPath, obj) {
+export default function formatPath(unformattedPath: string, obj: { }) {
     const { root } = path.parse(unformattedPath);
     return `${root}${path.normalize(unformattedPath)
         .replace(root, '')
         .split(path.sep)
         .map(i => formatString(i, obj).replace(/\/|\\|\?|\*|\:|\||\"|\<|\>/g, ''))
         .join(path.sep)}`;
-};
-
-module.exports = formatPath;
\ No newline at end of file
+};
\ No newline at end of file
diff --git a/src/utils/formatString.js b/src/utils/formatString.js
deleted file mode 100644
index 8d3133d..0000000
--- a/src/utils/formatString.js
+++ /dev/null
@@ -1,6 +0,0 @@
-function parseString(string, obj) {
-    return string
-        .replace(/{{(.*?)}}/g, (match, group) => group.split('.').reduce((acc, key) => acc && acc[key], obj) || '');
-}
-
-module.exports = parseString;
\ No newline at end of file
diff --git a/src/utils/formatString.ts b/src/utils/formatString.ts
new file mode 100644
index 0000000..74afbab
--- /dev/null
+++ b/src/utils/formatString.ts
@@ -0,0 +1,4 @@
+export default function formatString(string: string, obj: { }) {
+    return string
+        .replace(/{{(.*?)}}/g, (match, group) => group.split('.').reduce((acc: any, key: string) => acc && acc[key], obj) || '');
+}
\ No newline at end of file
diff --git a/src/utils/getAlbum.js b/src/utils/getAlbum.ts
similarity index 68%
rename from src/utils/getAlbum.js
rename to src/utils/getAlbum.ts
index e5765bd..9ea1884 100644
--- a/src/utils/getAlbum.js
+++ b/src/utils/getAlbum.ts
@@ -1,13 +1,14 @@
-const tidalApi = require('./tidalApi');
-const parseAlbum = require('./parseAlbum');
+import tidalApi from './tidalApi';
 
-async function getAlbum(albumId) {
+import parseAlbum from './parseAlbum';
+
+export default async function getAlbum(albumId: number) {
     return parseAlbum(
         await tidalApi('privatev1', `/albums/${albumId}`).then(({ json }) => json),
         await tidalApi('privatev1', '/pages/album', { query: { albumId } }).then(async ({ json }) => {
             const { album, description, credits, review } = json.rows[0].modules[0];
-            const tracks = json.rows[1].modules[0].pagedList.items.filter(({ type }) => type === 'track').map(({ item }) => item); // Default limit seems to be 9999
-            const trackCredits = await tidalApi('privatev1', `/albums/${albumId}/items/credits?limit=100`).then(({ json }) => json.items.filter(item => item.type === 'track')); // Limit is 100
+            const tracks = json.rows[1].modules[0].pagedList.items.filter(({ type }: any) => type === 'track').map(({ item }: any) => item); // Default limit seems to be 9999
+            const trackCredits = await tidalApi('privatev1', `/albums/${albumId}/items/credits?limit=100`).then(({ json }) => json.items.filter((item: any) => item.type === 'track')); // Limit is 100
             return {
                 ...album,
                 description,
@@ -18,6 +19,4 @@ async function getAlbum(albumId) {
             };
         })
     );
-}
-
-module.exports = getAlbum;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/getArtist.js b/src/utils/getArtist.js
deleted file mode 100644
index 1b19f48..0000000
--- a/src/utils/getArtist.js
+++ /dev/null
@@ -1,11 +0,0 @@
-const tidalApi = require('./tidalApi');
-const parseArtist = require('./parseArtist');
-
-function getArtist(artistId) {
-    return tidalApi('privatev2', `/artist/${artistId}`).then(({ json }) => parseArtist(json.item.data, {
-        biography: json.header.biography,
-        albums: json.items.filter(item => item.moduleId === 'ARTIST_ALBUMS' || item.moduleId === 'ARTIST_TOP_SINGLES').map(({ items }) => items.map(({ data }) => data)).flat()
-    }));
-}
-
-module.exports = getArtist;
\ No newline at end of file
diff --git a/src/utils/getArtist.ts b/src/utils/getArtist.ts
new file mode 100644
index 0000000..64a084e
--- /dev/null
+++ b/src/utils/getArtist.ts
@@ -0,0 +1,10 @@
+import tidalApi from './tidalApi';
+
+import parseArtist from './parseArtist';
+
+export default async function getArtist(artistId: number) {
+    return tidalApi('privatev2', `/artist/${artistId}`).then(({ json }) => parseArtist(json.item.data, {
+        biography: json.header.biography,
+        albums: json.items.filter((item: any) => item.moduleId === 'ARTIST_ALBUMS' || item.moduleId === 'ARTIST_TOP_SINGLES').map(({ items }: any) => items.map(({ data }: any) => data)).flat()
+    }));
+}
\ No newline at end of file
diff --git a/src/utils/getLyrics.js b/src/utils/getLyrics.ts
similarity index 60%
rename from src/utils/getLyrics.js
rename to src/utils/getLyrics.ts
index 06ebff8..2582508 100644
--- a/src/utils/getLyrics.js
+++ b/src/utils/getLyrics.ts
@@ -1,11 +1,9 @@
-const tidalApi = require('./tidalApi');
+import tidalApi from './tidalApi';
 
-function getLyrics(trackId) {
-    return tidalApi('privatev1', `/tracks/${trackId}/lyrics`).then(({ json }) => ({
+export default async function getLyrics(trackId: number) {
+    return tidalApi('privatev1', `/tracks/${trackId}/lyrics`).then(({ json }: any) => ({
         provider: json.lyricsProvider,
         plainLyrics: json.lyrics,
         syncedLyrics: json.subtitles,
     }));
-}
-
-module.exports = getLyrics;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/getMix.js b/src/utils/getMix.ts
similarity index 58%
rename from src/utils/getMix.js
rename to src/utils/getMix.ts
index fc3487b..4337f50 100644
--- a/src/utils/getMix.js
+++ b/src/utils/getMix.ts
@@ -1,10 +1,9 @@
-const tidalApi = require('./tidalApi');
-const parseMix = require('./parseMix');
+import tidalApi from './tidalApi';
 
-async function getMix(mixId) {
+import parseMix from './parseMix';
+
+export default async function getMix(mixId: number) {
     return tidalApi('privatev1', '/pages/mix', { query: { mixId } }).then(({ json }) => parseMix(json.rows[0].modules[0].mix, {
         items: json.rows[1].modules[0].pagedList.items
     }));
-}
-
-module.exports = getMix;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/getPlaybackInfo.js b/src/utils/getPlaybackInfo.ts
similarity index 65%
rename from src/utils/getPlaybackInfo.js
rename to src/utils/getPlaybackInfo.ts
index 16cc073..42a2fe5 100644
--- a/src/utils/getPlaybackInfo.js
+++ b/src/utils/getPlaybackInfo.ts
@@ -1,6 +1,6 @@
-const tidalApi = require('./tidalApi');
+import tidalApi from './tidalApi';
 
-function getPlaybackInfo(id, type = 'track', quality = 'HI_RES_LOSSLESS', immersiveAudio = false, playbackMode = 'STREAM', assetPresentation = 'FULL') {
+export default async function getPlaybackInfo(id: number, type = 'track', quality = 'HI_RES_LOSSLESS', immersiveAudio = false, playbackMode = 'STREAM', assetPresentation = 'FULL') {
     const isVideo = type === 'video' ? true : false;
 
     return tidalApi('privatev1', `/${type === 'video' ? 'videos' : 'tracks'}/${id}/playbackinfo`, {
@@ -11,6 +11,4 @@ function getPlaybackInfo(id, type = 'track', quality = 'HI_RES_LOSSLESS', immers
             assetpresentation: assetPresentation
         }
     }).then(res => res.json);
-}
-
-module.exports = getPlaybackInfo;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/getPlaylist.js b/src/utils/getPlaylist.ts
similarity index 59%
rename from src/utils/getPlaylist.js
rename to src/utils/getPlaylist.ts
index bc661d4..a3495ee 100644
--- a/src/utils/getPlaylist.js
+++ b/src/utils/getPlaylist.ts
@@ -1,17 +1,18 @@
-const tidalApi = require('./tidalApi');
-const parsePlaylist = require('./parsePlaylist');
+import tidalApi from './tidalApi';
 
-async function getPlaylist(playlistUuid) {
-    const playlist = await tidalApi('privatev2', `/user-playlists/${playlistUuid}`).then(res => res.json);
+import parsePlaylist from './parsePlaylist';
 
-    const items = [];
-    await (async function getItems(offset = 0, limit = 50) {
+export default async function getPlaylist(playlistUuid: string) {
+    const playlist = await tidalApi('privatev2', `/user-playlists/${playlistUuid}`).then((res: any) => res.json);
+
+    const items: any = [];
+    await (async function getItems(offset = 0, limit = 50): Promise<void> {
         return tidalApi('privatev1', `/playlists/${playlistUuid}/items`, {
             query: {
                 offset,
                 limit
             }
-        }).then(({ json }) => {
+        }).then(({ json }: any) => {
             items.push(...json.items);
             const nextOffset = json.offset + json.limit;
             if (nextOffset < json.totalNumberOfItems) return getItems(nextOffset);
@@ -21,6 +22,4 @@ async function getPlaylist(playlistUuid) {
     return parsePlaylist(playlist.playlist, {
         items
     });
-}
-
-module.exports = getPlaylist;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/getToken.js b/src/utils/getToken.ts
similarity index 55%
rename from src/utils/getToken.js
rename to src/utils/getToken.ts
index a614035..745300d 100644
--- a/src/utils/getToken.js
+++ b/src/utils/getToken.ts
@@ -1,36 +1,46 @@
-const { config } = require('../globals');
+import { config } from '../globals';
 
-function getToken(grantType, params = { }) {
-    const headers = { };
+export default async function getToken(grantType: string, params: {
+    clientId?: string;
+    clientSecret?: string;
+    code?: string;
+    redirectUri?: string;
+    codeVerifier?: string;
+    refreshToken?: string;
+    deviceCode?: string;
+    scope?: string[];
+    clientUniqueKey?: string;
+} = { }) {
+    const headers: {[key: string]: any} = { };
     const body = new URLSearchParams();
 
     if (grantType === 'client_credentials') {
         // client_credentials
         body.append('grant_type', 'client_credentials');
-        headers['Authorization'] = Buffer.from(`${params.clientId}:${params.clientSecret}`, 'base64');
+        headers['Authorization'] = Buffer.from(`${params.clientId!}:${params.clientSecret!}`, 'base64');
     } else if (grantType === 'authorization_code') {
         // authorization_code
         body.append('grant_type', 'authorization_code');
-        body.append('client_id', params.clientId);
-        body.append('code', params.code);
-        body.append('redirect_uri', params.redirectUri);
-        body.append('code_verifier', params.codeVerifier);
+        body.append('client_id', params.clientId!);
+        body.append('code', params.code!);
+        body.append('redirect_uri', params.redirectUri!);
+        body.append('code_verifier', params.codeVerifier!);
     } else if (grantType === 'refresh_token') {
         // refresh_token
         body.append('grant_type', 'refresh_token');
-        body.append('refresh_token', params.refreshToken);
+        body.append('refresh_token', params.refreshToken!);
 
         // Specific to user tokens
         if (params.clientId) body.append('client_id', params.clientId);
         if (params.clientSecret) body.append('client_secret', params.clientSecret);
     } else if (grantType === 'urn:ietf:params:oauth:grant-type:device_code') {
         // urn:ietf:params:oauth:grant-type:device_code
-        body.append('client_id', params.clientId);
-        body.append('client_secret', params.clientSecret);
-        body.append('device_code', params.deviceCode);
+        body.append('client_id', params.clientId!);
+        body.append('client_secret', params.clientSecret!);
+        body.append('device_code', params.deviceCode!);
         body.append('grant_type', 'urn:ietf:params:oauth:grant-type:device_code');
-        body.append('scope', params.scope.join(' '));
-        body.append('client_unique_key', params.clientUniqueKey); // Not needed
+        body.append('scope', params.scope!.join(' '));
+        body.append('client_unique_key', params.clientUniqueKey!); // Not needed
     } else throw new Error(`Unknown grant type "${grantType}"`);
 
     return fetch(`${config.authApiBaseUrl}/oauth2/token`, {
@@ -43,6 +53,4 @@ function getToken(grantType, params = { }) {
 
         if (res.status === 200) return json; throw json;
     });
-}
-
-module.exports = getToken;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/getTrack.js b/src/utils/getTrack.js
deleted file mode 100644
index dec11bb..0000000
--- a/src/utils/getTrack.js
+++ /dev/null
@@ -1,9 +0,0 @@
-const tidalApi = require('./tidalApi');
-
-function getTrack(trackId) {
-    const parseTrack = require('./parseTrack');
-
-    return tidalApi('privatev1', `/tracks/${trackId}`).then(({ json }) => parseTrack(json));
-}
-
-module.exports = getTrack;
\ No newline at end of file
diff --git a/src/utils/getTrack.ts b/src/utils/getTrack.ts
new file mode 100644
index 0000000..aaf3e69
--- /dev/null
+++ b/src/utils/getTrack.ts
@@ -0,0 +1,7 @@
+import tidalApi from './tidalApi';
+
+import parseTrack from './parseTrack';
+
+export default async function getTrack(trackId: number) {
+    return tidalApi('privatev1', `/tracks/${trackId}`).then(({ json }) => parseTrack(json));
+}
\ No newline at end of file
diff --git a/src/utils/getVideo.js b/src/utils/getVideo.js
deleted file mode 100644
index 3533b17..0000000
--- a/src/utils/getVideo.js
+++ /dev/null
@@ -1,9 +0,0 @@
-const tidalApi = require('./tidalApi');
-
-function getVideo(videoId) {
-    const parseVideo = require('./parseVideo');
-
-    return tidalApi('privatev1', `/videos/${videoId}`).then(({ json }) => parseVideo(json));
-}
-
-module.exports = getVideo;
\ No newline at end of file
diff --git a/src/utils/getVideo.ts b/src/utils/getVideo.ts
new file mode 100644
index 0000000..10f3293
--- /dev/null
+++ b/src/utils/getVideo.ts
@@ -0,0 +1,7 @@
+import tidalApi from'./tidalApi';
+
+import parseVideo from './parseVideo';
+
+export default async function getVideo(videoId: number) {
+    return tidalApi('privatev1', `/videos/${videoId}`).then(({ json }) => parseVideo(json));
+}
\ No newline at end of file
diff --git a/src/utils/normalizeTag.js b/src/utils/normalizeTag.ts
similarity index 64%
rename from src/utils/normalizeTag.js
rename to src/utils/normalizeTag.ts
index 152e41d..05f5ad1 100644
--- a/src/utils/normalizeTag.js
+++ b/src/utils/normalizeTag.ts
@@ -1,10 +1,8 @@
-function normalizeTag(value, separator) {
+export default function normalizeTag(value: string | string[], separator?: string) {
     if (value instanceof Array) {
         if (separator) return value.join(separator);
         return value[0];
     } else {
         return value;
     };
-}
-
-module.exports = normalizeTag;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/parseAlbum.js b/src/utils/parseAlbum.ts
similarity index 66%
rename from src/utils/parseAlbum.js
rename to src/utils/parseAlbum.ts
index 1288d59..64cea12 100644
--- a/src/utils/parseAlbum.js
+++ b/src/utils/parseAlbum.ts
@@ -1,19 +1,20 @@
-const stripMarkup = require('./stripMarkup');
+import stripMarkup from './stripMarkup';
 
-const { config, tidalAlbumCoverSizes } = require('../globals');
+import { config, tidalAlbumCoverSizes } from '../globals';
+import { Album } from '../types';
 
-function parseAlbum(album, additional = { }) {
-    const parseTrack = require('./parseTrack');
-    const parseArtist = require('./parseArtist');
-    const parseCredits = require('./parseCredits');
+import parseTrack from './parseTrack';
+import parseArtist from './parseArtist';
+import parseCredits from './parseCredits';
 
+export default function parseAlbum(album: any, additional: any = { }): Album {
     return {
         id: album.id,
         title: album.title,
         version: album.version, // NOTE: title seems to already include version, unlike track title
         description: additional?.description,
         type: album.type,
-        duration: album.duration,
+        duration: album.duration * 1000,
         upload: album.upload,
         trackCount: album.numberOfTracks,
         volumeCount: album.numberOfVolumes,
@@ -23,22 +24,18 @@ function parseAlbum(album, additional = { }) {
         upc: album.upc,
         covers: album.cover && Object.fromEntries(Object.entries(tidalAlbumCoverSizes).map(([name, size]) => [name, `${config.resourcesBaseUrl}/images/${album.cover.replace(/-/g, '/')}/${size}.jpg`])) || undefined,
         videoCovers: album.videoCover && Object.fromEntries(Object.entries(tidalAlbumCoverSizes).map(([name, size]) => [name, `${config.resourcesBaseUrl}/videos/${album.cover.replace(/-/g, '/')}/${size}.mp4`])) || undefined,
-        // cover: album.cover && `${config.resourcesBaseUrl}/images/${album.cover.replace(/-/g, '/')}/origin.jpg` || undefined,
-        // videoCover: album.videoCover && `${config.resourcesBaseUrl}/videos/${album.videoCover.replace(/-/g, '/')}/origin.mp4` || undefined,
         quality: album.audioQuality,
         modes: album.audioModes,
         qualityTypes: album.mediaMetadata?.tags,
-        credits: additional?.credits?.items ? parseCredits(additional.credits.items) : null,
-        trackCredits: additional?.trackCredits ? additional.trackCredits.map(i => ({ track: i.item, credits: parseCredits(i.credits) })) : null,
+        credits: additional?.credits?.items ? parseCredits(additional.credits.items) : undefined,
+        trackCredits: additional?.trackCredits ? additional.trackCredits.map((i: any) => ({ track: i.item, credits: parseCredits(i.credits) })) : undefined,
         review: additional?.review?.text ? {
             originalText: additional.review.text,
             text: stripMarkup(additional.review.text),
             source: additional.review.source
-        } : null,
+        } : undefined,
         url: album.url,
         artists: album.artists?.map(parseArtist),
         tracks: additional?.tracks?.map(parseTrack),
     };
-}
-
-module.exports = parseAlbum;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/parseArtist.js b/src/utils/parseArtist.ts
similarity index 54%
rename from src/utils/parseArtist.js
rename to src/utils/parseArtist.ts
index 3452897..f4de48a 100644
--- a/src/utils/parseArtist.js
+++ b/src/utils/parseArtist.ts
@@ -1,10 +1,11 @@
-const stripMarkup = require('./stripMarkup');
+import stripMarkup from './stripMarkup';
 
-const { config, tidalArtistPictureSizes } = require('../globals');
+import { config, tidalArtistPictureSizes } from '../globals';
+import { Artist } from '../types';
 
-function parseArtist(artist, additional = { }) {
-    const parseAlbum = require('./parseAlbum');
+import parseAlbum from './parseAlbum';
 
+export default function parseArtist(artist: any, additional: any = { }): Artist {
     return {
         id: artist.id,
         name: artist.name,
@@ -12,16 +13,13 @@ function parseArtist(artist, additional = { }) {
             originalText: additional.biography.text,
             text: stripMarkup(additional.biography.text),
             source: additional.biography.source
-        } : null,
+        } : undefined,
         pictures: artist.picture && Object.fromEntries(Object.entries(tidalArtistPictureSizes).map(([name, size]) => [name, `${config.resourcesBaseUrl}/images/${artist.picture.replace(/-/g, '/')}/${size}.jpg`])) || undefined,
-        // picture: artist.picture && `${config.resourcesBaseUrl}/images/${artist.picture.replace(/-/g, '/')}/origin.jpg` || undefined,
         types: artist.artistTypes,
-        roles: artist.artistRoles?.map(role => ({
+        roles: artist.artistRoles?.map((role: any) => ({
             id: role.categoryId,
             name: role.category
         })),
-        albums: additional?.albums?.map(album => parseAlbum(album))
+        albums: additional?.albums?.map((album: any) => parseAlbum(album))
     };
-}
-
-module.exports = parseArtist;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/parseConfig.js b/src/utils/parseConfig.ts
similarity index 64%
rename from src/utils/parseConfig.js
rename to src/utils/parseConfig.ts
index bc56a6d..e21587a 100644
--- a/src/utils/parseConfig.js
+++ b/src/utils/parseConfig.ts
@@ -1,9 +1,69 @@
-const fs = require('fs');
+import fs from 'fs';
 
-const defaultConfig = require('../default.config.json');
+import defaultConfig from '../default.config.json';
 
-function parseConfig(configPath) {
-    const jsonConfig = JSON.parse(fs.readFileSync(configPath));
+export type TypeOptions = {
+    directory: string;
+    filename: string;
+    coverFilename: string | null;
+}
+
+export type Config = {
+    _version: number;
+    defaultTypeOptions: TypeOptions;
+    typeOptions: {
+        album?: TypeOptions;
+        video?: TypeOptions;
+        playlist?: TypeOptions;
+        mix?: TypeOptions;
+    };
+    trackQuality: string;
+    videoQuality: string;
+    playlistCoverFilename: string;
+    playlistFileFilename: string;
+    mixCoverFilename: string;
+    mixFileFilename: string;
+    useDolbyAtmos: boolean;
+    getLyrics: boolean;
+    syncedLyricsOnly: boolean;
+    plainLyricsOnly: boolean;
+    externalLyrics: boolean;
+    embedMetadata: boolean;
+    artistTagSeparator: string;
+    roleTagSeparator: string;
+    useArtistsTag: boolean;
+    allowUserUploads: boolean;
+    forcePartialData: boolean;
+    partialDataFallback: boolean;
+    getCover: boolean;
+    trackCoverSize: string;
+    videoCoverSize: string;
+    playlistCoverSize: string;
+    mixCoverSize: string;
+    customMetadata: [string, string][];
+    metadataEmbedder: string;
+    downloadLogPadding: number;
+    overwriteExisting: boolean;
+    segmentWaitMin: number;
+    segmentWaitMax: number;
+
+    ffmpegPath: string;
+    kid3CliPath: string;
+    secretsPath: string;
+
+    debug: boolean;
+    clientId: string;
+    clientSecret: string;
+    scope: string[];
+    openApiV2BaseUrl: string;
+    authApiBaseUrl: string;
+    privateApiV1BaseUrl: string;
+    privateApiV2BaseUrl: string;
+    resourcesBaseUrl: string;
+};
+
+export default function parseConfig(configPath: string): Config {
+    const jsonConfig = JSON.parse(fs.readFileSync(configPath, 'utf-8'));
     let version = jsonConfig._version;
     let shouldUpdate = false;
 
@@ -107,6 +167,4 @@ function parseConfig(configPath) {
     if (shouldUpdate) fs.writeFileSync(configPath, JSON.stringify(config, null, 4));
 
     return config;
-}
-
-module.exports = parseConfig;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/parseCredits.js b/src/utils/parseCredits.js
deleted file mode 100644
index 24265c0..0000000
--- a/src/utils/parseCredits.js
+++ /dev/null
@@ -1,15 +0,0 @@
-const { logger, tidalCredits } = require('../globals');
-
-function parseCredits(credits) {
-    return credits.map(rawCredit => {
-        const credit = tidalCredits.find(i => i.type.toLowerCase() === rawCredit.type.toLowerCase());
-        if (!credit) return logger.debug(`Got unknown credit type "${rawCredit.type}", contributors: ${rawCredit.contributors.map(i => i.name).join(', ')}`);
-        return {
-            type: credit.type,
-            tagName: credit.tagName,
-            contributors: rawCredit.contributors
-        }
-    }).filter(i => i);
-}
-
-module.exports = parseCredits;
\ No newline at end of file
diff --git a/src/utils/parseCredits.ts b/src/utils/parseCredits.ts
new file mode 100644
index 0000000..7073573
--- /dev/null
+++ b/src/utils/parseCredits.ts
@@ -0,0 +1,21 @@
+import { logger, tidalCredits } from '../globals';
+import { Credit } from '../types';
+
+export default function parseCredits(credits: {
+    type: string;
+    contributors: {
+        name: string;
+        id: number;
+    }[];
+}[]) {
+    return credits.map(rawCredit => {
+        const credit = tidalCredits.find(i => i.type.toLowerCase() === rawCredit.type.toLowerCase());
+        if (!credit) return logger.log(`Got unknown credit type "${rawCredit.type}", contributors: ${rawCredit.contributors.map(i => i.name).join(', ')}`, 'debug');
+        
+        return {
+            type: credit.type,
+            tagName: credit.tagName,
+            contributors: rawCredit.contributors
+        };
+    }).filter(i => i) as Credit[];
+}
\ No newline at end of file
diff --git a/src/utils/parseManifest.js b/src/utils/parseManifest.ts
similarity index 64%
rename from src/utils/parseManifest.js
rename to src/utils/parseManifest.ts
index fe554a5..cca6939 100644
--- a/src/utils/parseManifest.js
+++ b/src/utils/parseManifest.ts
@@ -1,29 +1,31 @@
-async function parseManifest(manifest, manifestType) {
+export default async function parseManifest(manifest: string, manifestType: string) {
     if (manifestType === 'application/dash+xml') {
-        const parsedManifest = {
-            contentType: null,
-            mimeType: null,
-            segmentAlignment: null,
-            codec: null,
-            bandwidth: null,
-            audioSamplingRate: null,
-            timescale: null,
-            initialization: null,
-            media: null,
-            startNumber: null,
-            
+        const parsedManifest: {
+            contentType?: string;
+            mimeType?: string;
+            segmentAlignment?: string;
+            codec?: string;
+            bandwidth?: string;
+            audioSamplingRate?: number;
+            timescale?: string;
+            initialization?: string;
+            media?: string;
+            startNumber?: number;
+            segments: string[];
+        } = {
+
             segments: []
         };
 
         // TODO: a little less jank perhaps
         parsedManifest.codec = manifest.match(/(?:<|\s)codecs="(.*?)"/)?.[1];
-        parsedManifest.audioSamplingRate = parseInt(manifest.match(/(?:<|\s)audioSamplingRate="(.*?)"/)?.[1]);
+        parsedManifest.audioSamplingRate = parseInt(manifest.match(/(?:<|\s)audioSamplingRate="(.*?)"/)?.[1] as any);
         parsedManifest.initialization = manifest.match(/(?:<|\s)initialization="(.*?)"/)?.[1];
         parsedManifest.media = manifest.match(/(?:<|\s)media="(.*?)"/)?.[1];
-        parsedManifest.startNumber = parseInt(manifest.match(/(?:<|\s)startNumber="(.*?)"/)?.[1]);
+        parsedManifest.startNumber = parseInt(manifest.match(/(?:<|\s)startNumber="(.*?)"/)?.[1] as any);
 
-        for (let segmentIndex = 0; segmentIndex < parseInt(manifest.match(/(?:<|\s)r="(.*?)"/)?.[1]) + 3; segmentIndex++) {
-            parsedManifest.segments.push(parsedManifest.media.replace(/\$Number\$/, segmentIndex))
+        for (let segmentIndex = 0; segmentIndex < parseInt(manifest.match(/(?:<|\s)r="(.*?)"/)?.[1] as any) + 3; segmentIndex++) {
+            parsedManifest.segments.push(parsedManifest.media!.replace(/\$Number\$/, segmentIndex.toString()));
         }
 
         return parsedManifest;
@@ -46,8 +48,8 @@ async function parseManifest(manifest, manifestType) {
             }));
 
             for (const segmentManifest of segmentManifests) {
-                segmentManifest.raw = await fetch(segmentManifest.url).then(i => i.text());
-                segmentManifest.segments = Array.from(segmentManifest.raw.matchAll(/#EXTINF:(.*?),\n(.*?)\n/g)).map(i => i[2]);
+                segmentManifest.raw = await fetch(segmentManifest.url).then(i => i.text()) as any;
+                segmentManifest.segments = Array.from((segmentManifest.raw! as string).matchAll(/#EXTINF:(.*?),\n(.*?)\n/g)).map(i => i[2]) as any;
             }
 
             mainManifests.push({
@@ -72,25 +74,25 @@ async function parseManifest(manifest, manifestType) {
             segments: manifestJson.urls
         }
     } else if (manifestType === 'application/vnd.apple.mpegurl') {
-        const parsedManifest = {
-            bandwidth: null,
-            averageBandwidth: null,
-            codec: null,
-            raw: null,
+        const parsedManifest: {
+            bandwidth?: number;
+            averageBandwidth?: number;
+            codec?: string;
+            raw?: string;
+            segments: string[];
+        } = {
             segments: []
         };
 
-        parsedManifest.bandwidth = parseInt(manifest.match(/BANDWIDTH=\d+/))?.[1];
-        parsedManifest.averageBandwidth = parseInt(manifest.match(/AVERAGE-BANDWIDTH=\d+/))?.[1];
+        parsedManifest.bandwidth = parseInt(manifest.match(/BANDWIDTH=\d+/)?.[1] as any);
+        parsedManifest.averageBandwidth = parseInt(manifest.match(/AVERAGE-BANDWIDTH=\d+/)?.[1] as any);
         parsedManifest.codec = manifest.match(/CODECS="(.*?)"/)?.[1]?.toLowerCase();
-        parsedManifest.raw = Buffer.from(manifest.match(/data:application\/vnd\.apple\.mpegurl;base64,(.*)/)?.[1], 'base64').toString();
-        parsedManifest.segments = [parsedManifest.raw.match(/#EXT-X-MAP:URI="(.*?)"/)[1], ...Array.from(parsedManifest.raw.matchAll(/#EXTINF:(.*?),\n(.*?)\n/g)).map(i => i[2])];
+        parsedManifest.raw = Buffer.from(manifest.match(/data:application\/vnd\.apple\.mpegurl;base64,(.*)/)?.[1] as any, 'base64').toString();
+        parsedManifest.segments = [parsedManifest.raw.match(/#EXT-X-MAP:URI="(.*?)"/)?.[1] as any, ...Array.from(parsedManifest.raw.matchAll(/#EXTINF:(.*?),\n(.*?)\n/g)).map(i => i[2])];
 
         return parsedManifest;
     } else {
         throw new Error(`Unknown manifest MIME type "${manifestType}"`);
     }
 
-}
-
-module.exports = parseManifest;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/parseMix.js b/src/utils/parseMix.js
deleted file mode 100644
index 68a62e2..0000000
--- a/src/utils/parseMix.js
+++ /dev/null
@@ -1,16 +0,0 @@
-const parseTrack = require("./parseTrack");
-
-function parseMix(mix, additional = { }) {
-    return {
-        id: mix.id,
-        title: mix.title,
-        subTitle: mix.subTitle,
-        shortSubTitle: mix.shortSubtitle,
-        description: mix.description,
-        images: Object.fromEntries(Object.entries(mix.images).map(([key, value]) => [key, value.url])),
-        detailImages: Object.fromEntries(Object.entries(mix.detailImages).map(([key, value]) => [key, value.url])),
-        tracks: additional?.items.map(item => parseTrack(item))
-    };
-}
-
-module.exports = parseMix;
\ No newline at end of file
diff --git a/src/utils/parseMix.ts b/src/utils/parseMix.ts
new file mode 100644
index 0000000..1b1c944
--- /dev/null
+++ b/src/utils/parseMix.ts
@@ -0,0 +1,16 @@
+import { Mix } from '../types';
+
+import parseTrack from './parseTrack';
+
+export default function parseMix(mix: any, additional: any = { }): Mix {
+    return {
+        id: mix.id,
+        title: mix.title,
+        subTitle: mix.subTitle,
+        shortSubTitle: mix.shortSubtitle,
+        description: mix.description,
+        images: Object.fromEntries(Object.entries(mix.images).map(([key, value]: any) => [key, value.url])),
+        detailImages: Object.fromEntries(Object.entries(mix.detailImages).map(([key, value]: any) => [key, value.url])),
+        tracks: additional?.items.map((item: any) => parseTrack(item))
+    };
+}
\ No newline at end of file
diff --git a/src/utils/parsePlaylist.js b/src/utils/parsePlaylist.ts
similarity index 55%
rename from src/utils/parsePlaylist.js
rename to src/utils/parsePlaylist.ts
index 8e7f9cb..0f057b8 100644
--- a/src/utils/parsePlaylist.js
+++ b/src/utils/parsePlaylist.ts
@@ -1,29 +1,26 @@
-const { config, tidalPlaylistImageSizes } = require ('../globals');
+import { config, tidalPlaylistImageSizes } from '../globals';
+import { Playlist } from '../types';
 
-const parseTrack = require('./parseTrack');
-const parseVideo = require('./parseVideo');
+import parseTrack from './parseTrack';
+import parseVideo from './parseVideo';
 
-function parsePlaylist(playlist, additional = { }) {
+export default function parsePlaylist(playlist: any, additional: any = { }): Playlist {
     return {
         uuid: playlist.uuid,
         title: playlist.title,
         description: playlist.description,
-        duration: playlist.duration,
+        duration: playlist.duration * 1000,
         images: playlist.squareImage && Object.fromEntries(Object.entries(tidalPlaylistImageSizes).map(([name, size]) => [name, `${config.resourcesBaseUrl}/images/${playlist.squareImage.replace(/-/g, '/')}/${size}.jpg`])) || undefined,
-        // image: playlist.squareImage && `${config.resourcesBaseUrl}/images/${playlist.squareImage.replace(/-/g, '/')}/origin.jpg` || undefined,
         customImage: playlist.customImageUrl, // not used even with custom images?
-        // trackCount: playlist.numberOfTracks,
         sharing: playlist.sharingLevel,
         created: playlist.created,
         lastUpdated: playlist.lastUpdated,
-        items: additional?.items?.map(({ type, item }) => ({
+        items: additional?.items?.map(({ type, item }: any) => ({
             type,
             item:
                 type === 'track'? parseTrack(item) :
                 type === 'video' ? parseVideo(item) :
                 null
-        })).filter(({ item }) => item !== null)
+        })).filter(({ item }: any) => item !== null)
     };
-}
-
-module.exports = parsePlaylist;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/parseTrack.js b/src/utils/parseTrack.ts
similarity index 79%
rename from src/utils/parseTrack.js
rename to src/utils/parseTrack.ts
index a75f4b9..87a5ad2 100644
--- a/src/utils/parseTrack.js
+++ b/src/utils/parseTrack.ts
@@ -1,13 +1,15 @@
-function parseTrack(track) {
-    const parseArtist = require('./parseArtist');
-    const parseAlbum = require('./parseAlbum');
+import { Track } from '../types';
 
+import parseArtist from './parseArtist';
+import parseAlbum from './parseAlbum';
+
+export default function parseTrack(track: any): Track {
     return {
         id: track.id,
         title: track.title,
         fullTitle: `${track.title}${track.version ? ` (${track.version})` : ''}`,
         version: track.version,
-        duration: track.duration,
+        duration: track.duration * 1000,
         upload: track.upload,
         copyright: track.copyright,
         explicit: track.explicit,
@@ -27,6 +29,4 @@ function parseTrack(track) {
         artists: track.artists?.map(parseArtist),
         album: track.album && parseAlbum(track.album) || undefined
     };
-}
-
-module.exports = parseTrack;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/parseVideo.js b/src/utils/parseVideo.ts
similarity index 71%
rename from src/utils/parseVideo.js
rename to src/utils/parseVideo.ts
index f130433..e1528f7 100644
--- a/src/utils/parseVideo.js
+++ b/src/utils/parseVideo.ts
@@ -1,14 +1,15 @@
-const { config, tidalVideoCoverSizes } = require('../globals');
+import { config, tidalVideoCoverSizes } from '../globals';
+import { Video } from '../types';
 
-// TODO: confirm album is always null
-function parseVideo(video) {
-    const parseArtist = require('./parseArtist');
+import parseArtist from './parseArtist';
 
+// TODO: confirm album is always null
+export default function parseVideo(video: any): Video {
     return {
         id: video.id,
         title: video.title,
         type: video.type,
-        duration: video.duration,
+        duration: video.duration * 1000,
         releaseDate: video.releaseDate,
         explicit: video.explicit,
         quality: video.quality,
@@ -17,6 +18,4 @@ function parseVideo(video) {
         volumeNumber: video.volumeNumber,
         artists: video.artists?.map(parseArtist),
     };
-}
-
-module.exports = parseVideo;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/requestDeviceAuthorization.js b/src/utils/requestDeviceAuthorization.ts
similarity index 74%
rename from src/utils/requestDeviceAuthorization.js
rename to src/utils/requestDeviceAuthorization.ts
index 33f14c7..7a131a6 100644
--- a/src/utils/requestDeviceAuthorization.js
+++ b/src/utils/requestDeviceAuthorization.ts
@@ -1,6 +1,6 @@
-const { config } = require('../globals');
+import { config } from '../globals';
 
-function requestDeviceAuthorization(clientId, scope) {
+export default async function requestDeviceAuthorization(clientId: string, scope: string[]) {
     return fetch(`${config.authApiBaseUrl}/oauth2/device_authorization`, {
         method: 'POST',
         body: new URLSearchParams({
@@ -14,6 +14,4 @@ function requestDeviceAuthorization(clientId, scope) {
 
         if (res.status === 200) return json; throw json;
     });
-}
-
-module.exports = requestDeviceAuthorization;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/search.js b/src/utils/search.ts
similarity index 54%
rename from src/utils/search.js
rename to src/utils/search.ts
index f082b1c..350ad15 100644
--- a/src/utils/search.js
+++ b/src/utils/search.ts
@@ -1,12 +1,26 @@
-const tidalApi = require('./tidalApi');
+import tidalApi from './tidalApi';
+import parseTrack from './parseTrack';
+import parseAlbum from './parseAlbum';
+import parseArtist from './parseArtist';
+import parsePlaylist from './parsePlaylist';
+import parseVideo from './parseVideo';
 
-const parseTrack = require('./parseTrack');
-const parseAlbum = require('./parseAlbum');
-const parseArtist = require('./parseArtist');
-const parsePlaylist = require('./parsePlaylist');
-const parseVideo = require('./parseVideo');
+import { Album, Artist, Playlist, Track, Video } from '../types';
 
-function search(query, limit = 20) {
+export default async function search(query: string, limit = 20): Promise<{
+    topResults: (
+        { type: 'track', value: Track } |
+        { type: 'album', value: Album } |
+        { type: 'video', value: Video } |
+        { type: 'artist', value: Artist } |
+        { type: 'playlist', value: Playlist }
+    )[];
+    tracks: Track[];
+    albums: Album[];
+    videos: Video[];
+    artists: Artist[];
+    playlists: Playlist[];
+}> {
     return tidalApi('privatev2', '/search/', {
         query: {
             limit,
@@ -14,13 +28,13 @@ function search(query, limit = 20) {
         }
     }).then(({ json }) => {
         return {
-            topResults: json.topHits.map(({ type, value }) => {
+            topResults: json.topHits.map(({ type, value }: any) => {
                 if (type === 'TRACKS') return { type: 'track', value: parseTrack(value) };
                 if (type === 'ALBUMS') return { type: 'album', value: parseAlbum(value) };
                 if (type === 'VIDEOS') return { type: 'video', value: parseVideo(value) };
                 if (type === 'ARTISTS') return { type: 'artist', value: parseArtist(value) };
                 if (type === 'PLAYLISTS') return { type: 'playlist', value: parsePlaylist(value) };
-            }).filter(i => i),
+            }).filter((i: any) => i),
             tracks: json.tracks.items.map(parseTrack),
             albums: json.albums.items.map(parseAlbum),
             videos: json.videos.items.map(parseVideo),
@@ -30,6 +44,4 @@ function search(query, limit = 20) {
             // users: json.userProfiles.items,
         }
     });
-}
-
-module.exports = search;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/spawn.js b/src/utils/spawn.ts
similarity index 57%
rename from src/utils/spawn.js
rename to src/utils/spawn.ts
index ac92aed..b4f8716 100644
--- a/src/utils/spawn.js
+++ b/src/utils/spawn.ts
@@ -1,11 +1,15 @@
-const child_process = require('child_process');
-const path = require('path');
+import child_process from 'child_process';
+import path from 'path';
 
-const { execDir, logger } = require('../globals');
+import { execDir, logger } from '../globals';
 
-function spawn(command, args) {
+export default function spawn(command: string, args: string[]): Promise<{
+    code: number;
+    stdout: Uint8Array;
+    stderr: Uint8Array;
+}> {
     return new Promise((resolve, reject) => {
-        logger.debug(`Spawning '${command}', args: ${args.join(', ')}`);
+        logger.log(`Spawning '${command}', args: ${args.join(', ')}`, 'debug');
 
         const spawnedProcess = child_process.spawn(command, args, {
             env: {
@@ -14,18 +18,16 @@ function spawn(command, args) {
             }
         });
 
-        const stdoutChunks = [];
-        const stderrChunks = [];
+        const stdoutChunks: any = [];
+        const stderrChunks: any = [];
 
         spawnedProcess.stdout.on('data', chunk => stdoutChunks.push(chunk));
         spawnedProcess.stderr.on('data', chunk => stderrChunks.push(chunk));
         spawnedProcess.on('error', err => reject(err));
-        spawnedProcess.on('exit', code => resolve({
+        spawnedProcess.on('exit', (code: number) => resolve({
             code,
             stdout: Buffer.concat(stdoutChunks),
             stderr: Buffer.concat(stderrChunks),
         }));
     });
-}
-
-module.exports = spawn;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/stripMarkup.js b/src/utils/stripMarkup.ts
similarity index 69%
rename from src/utils/stripMarkup.js
rename to src/utils/stripMarkup.ts
index 1d40891..3938894 100644
--- a/src/utils/stripMarkup.js
+++ b/src/utils/stripMarkup.ts
@@ -1,7 +1,5 @@
-function stripMarkup(str) {
+export default function stripMarkup(str: string) {
     return str
         .replace(/\[wimpLink.*?\](.*?)\[\/wimpLink\]/g, (match, content) => content)
         .replace(/<br\/?>/g, '\n');
-}
-
-module.exports = stripMarkup;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/utils/tidalApi.js b/src/utils/tidalApi.ts
similarity index 65%
rename from src/utils/tidalApi.js
rename to src/utils/tidalApi.ts
index 6f68c6b..664a929 100644
--- a/src/utils/tidalApi.js
+++ b/src/utils/tidalApi.ts
@@ -1,7 +1,16 @@
-const { config, secrets, logger } = require('../globals');
+import { config, secrets, logger } from '../globals';
 
-function tidalApi(api = 'openv2', path, options = { }) {
-    const baseUrl = api === 'openv2' ? config.openApiV2BaseUrl : api === 'privatev1' ? config.privateApiV1BaseUrl : api === 'privatev2' ? config.privateApiV2BaseUrl : null;
+export default async function tidalApi(api: 'openv2' | 'privatev1' | 'privatev2' = 'openv2', path: string, options: {
+    query?: object;
+    method?: string;
+    headers?: object;
+    json?: any;
+} = { }) {
+    const baseUrl =
+        api === 'openv2' ? config.openApiV2BaseUrl :
+        api === 'privatev1' ? config.privateApiV1BaseUrl :
+        api === 'privatev2' ? config.privateApiV2BaseUrl :
+        null;
     const params = {
         ...(options.query || {}),
         locale: 'en_US',
@@ -30,15 +39,13 @@ function tidalApi(api = 'openv2', path, options = { }) {
         let json;
         try { json = JSON.parse(text) } catch (err) { };
 
-        logger.debug(`API: ${api}, path: ${path}, params: ${urlSearchParams.toString()}, response: ${status}${statusText ? ` ${statusText}` : ''}`);
+        logger.log(`API: ${api}, path: ${path}, params: ${urlSearchParams.toString()}, response: ${status}${statusText ? ` ${statusText}` : ''}`, 'debug');
 
         return {
             status,
             statusText,
             text,
             json
-        }
+        };
     });
-}
-
-module.exports = tidalApi;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 0000000..d4aac2f
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,13 @@
+{
+    "compilerOptions": {
+        "rootDir": "./src",
+        "outDir": "./dist",
+        "module": "nodenext",
+        "target": "esnext",
+        "types": ["node"],
+		
+		"noImplicitAny": true,
+		"strict": true,
+        // TODO: make gooder
+    }
+}