diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 0ef8c69..320a65e 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -1,3 +1,5 @@
+---
+
 version: 2
 updates:
   - package-ecosystem: "github-actions"
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1b5c8d6..fc37752 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,9 +1,12 @@
+---
+
 name: CI
 
 on:
   pull_request:
   push:
-    branches: [ "main" ]
+    branches:
+      - main
   workflow_dispatch:
 
 concurrency:
@@ -11,53 +14,47 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  build:
-    name: Build
+  yamllint:
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        otp_version: ['27.1', '26.2', '25.3']
-
     steps:
-      - uses: actions/checkout@v4
-
-      - uses: erlef/setup-beam@v1
-        with:
-          otp-version: ${{ matrix.otp_version }}
-          version-type: 'strict'
+      - name: Checkout Code
+        uses: actions/checkout@v4
+      - name: Run YAML Lint
+        uses: actionshub/yamllint@main
 
-      - uses: actions/cache@v4
+  markdownlint-cli:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v4
+      - name: Run markdownlint-cli
+        uses: nosborn/github-action-markdown-cli@v3.4.0
         with:
-          path: |
-            ~/.cache/rebar3
-            _build
-          key: ${{ runner.os }}-erlang-${{ matrix.otp_version }}-${{ hashFiles('**/*rebar.lock') }}
-
-      - run: make build
+          files: .
+          config_file: ".markdownlint.yaml"
 
   test:
-    name: Test
-    runs-on: ubuntu-latest
+    name: OTP ${{matrix.otp}}
     strategy:
       matrix:
-        otp_version: ['27.1', '26.2', '25.3']
-
-    needs:
-      - build
-
+        otp: ['27', '26', '25']
+        rebar3: ['3.24']
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-
       - uses: erlef/setup-beam@v1
         with:
-          otp-version: ${{ matrix.otp_version }}
-          version-type: 'strict'
-
+          otp-version: ${{ matrix.otp }}
+          rebar3-version: ${{matrix.rebar3}}
       - uses: actions/cache@v4
         with:
           path: |
             ~/.cache/rebar3
             _build
-          key: ${{ runner.os }}-erlang-${{ matrix.otp_version }}-${{ hashFiles('**/*rebar.lock') }}
-
+          key: ${{ runner.os }}-erlang-${{ matrix.otp }}-rebar3-${{ matrix.rebar3 }}-hash-${{hashFiles('rebar.lock')}}
+      - run: make build
       - run: make test
+      # - name: Coveralls
+      #   uses: coverallsapp/github-action@v2
+      #   with:
+      #     file: _build/test/covertool/dns_erlang.covertool.xml
diff --git a/.markdownlint.yaml b/.markdownlint.yaml
new file mode 100644
index 0000000..5935c62
--- /dev/null
+++ b/.markdownlint.yaml
@@ -0,0 +1,13 @@
+---
+default: true
+
+# no-hard-tabs
+MD010:
+  code_blocks: false
+
+# no-multiple-blanks
+MD012:
+  maximum: 2
+
+# line-length
+MD013: false
diff --git a/.tool-versions b/.tool-versions
deleted file mode 100644
index 145b3cd..0000000
--- a/.tool-versions
+++ /dev/null
@@ -1 +0,0 @@
-erlang 27.1.3
diff --git a/.yamllint b/.yamllint
new file mode 100644
index 0000000..f383e9d
--- /dev/null
+++ b/.yamllint
@@ -0,0 +1,9 @@
+---
+extends: default
+rules:
+  line-length:
+    max: 256
+    level: warning
+  truthy:
+    ignore: |
+      /.github/workflows/*.yml
diff --git a/Makefile b/Makefile
index b3bec85..fc9fe1c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,29 +1,28 @@
-REBAR:=$(shell which rebar3 || echo ./rebar3)
-REBAR_URL:="https://s3.amazonaws.com/rebar3/rebar3"
-
-all: deps compile
-
-$(REBAR):
-	wget $(REBAR_URL) && chmod +x rebar3
-
-build: compile
-
-compile: $(REBAR)
-	@$(REBAR) compile
-
-deps: $(REBAR)
-	@$(REBAR) get-deps
-
-doc: $(REBAR)
-	@$(REBAR) doc skip_deps=true
-
-clean: $(REBAR)
-	@$(REBAR) clean
-	@rm -fr doc/*
-
-fresh:
-	rm -fr _build/*
-
-test: $(REBAR) all
-	@$(REBAR) dialyzer
-	@$(REBAR) eunit skip_deps=true
+all: build
+
+.PHONY: build
+build:
+	rebar3 compile
+
+.PHONY: doc
+doc:
+	rebar3 edoc
+
+.PHONY: clean
+clean:
+	rebar3 clean
+	@rm -rf doc
+
+.PHONY: fresh
+fresh: clean
+	rm -rf _build
+
+.PHONY: test
+test: all
+	rebar3 fmt --check
+	rebar3 eunit
+	rebar3 do cover, covertool generate
+
+.PHONY: format
+format: build
+	rebar3 fmt
diff --git a/README.md b/README.md
index 5831888..e081be9 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 ![CI](https://github.com/dnsimple/base32_erlang/actions/workflows/ci.yml/badge.svg)
 
-```
+```erlang
 1> X = <<"foobar">>.
 <<"foobar">>
 2> X0 = base32:encode(X).
diff --git a/rebar.config b/rebar.config
index 8dd8506..44aeca2 100644
--- a/rebar.config
+++ b/rebar.config
@@ -1,19 +1,38 @@
 % -*- mode: Erlang; -*-
-{cover_enabled, true}.
-{cover_print_enabled, true}.
-{erl_opts, [warnings_as_errors]}.
+{erl_opts, [
+    warnings_as_errors
+]}.
 
 {project_plugins, [
-    erlfmt
+    {rebar3_hex, "~> 7.0"},
+    {rebar3_ex_doc, "~> 0.2"},
+    {erlfmt, "~> 1.6"},
+    {covertool, "~> 2.0.7"}
+]}.
+
+{profiles, [
+    {test, [
+        {erl_opts, [nowarn_export_all, nowarn_missing_spec, nowarn_missing_doc]},
+        {eunit_opts, [verbose]},
+        {covertool, [{coverdata_files, ["eunit.coverdata", "ct.coverdata"]}]},
+        {cover_opts, [verbose, {min_coverage, 60}]},
+        {cover_enabled, true},
+        {cover_export_enabled, true}
+    ]}
 ]}.
 
-{eunit_opts, [verbose]}.
+{hex, [{doc, #{provider => ex_doc}}]}.
+
+{ex_doc, [
+    {source_url, <<"https://github.com/dnsimple/base32_erlang">>},
+    {main, <<"readme">>},
+    {extras, [
+        {'README.md', #{title => <<"Overview">>}},
+        {'LICENSE', #{title => <<"License">>}}
+    ]}
+]}.
 
 {erlfmt, [
     write,
     {print_width, 140}
 ]}.
-
-{dialyzer, [
-   {warnings, [no_unknown]}
-]}.