diff --git a/components/android/.gitignore b/components/android/.gitignore
new file mode 100644
index 0000000..aa724b7
--- /dev/null
+++ b/components/android/.gitignore
@@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties
diff --git a/components/android/build.gradle.kts b/components/android/build.gradle.kts
new file mode 100644
index 0000000..ea83d6b
--- /dev/null
+++ b/components/android/build.gradle.kts
@@ -0,0 +1,5 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+ alias(libs.plugins.android.library) apply false
+ alias(libs.plugins.kotlin.compose) apply false
+}
diff --git a/components/android/gradle.properties b/components/android/gradle.properties
new file mode 100644
index 0000000..34c5e9e
--- /dev/null
+++ b/components/android/gradle.properties
@@ -0,0 +1,15 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. For more details, visit
+# https://developer.android.com/r/tools/gradle-multi-project-decoupled-projects
+# org.gradle.parallel=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
\ No newline at end of file
diff --git a/components/android/gradle/gradle-daemon-jvm.properties b/components/android/gradle/gradle-daemon-jvm.properties
new file mode 100644
index 0000000..6c1139e
--- /dev/null
+++ b/components/android/gradle/gradle-daemon-jvm.properties
@@ -0,0 +1,12 @@
+#This file is generated by updateDaemonJvm
+toolchainUrl.FREE_BSD.AARCH64=https\://api.foojay.io/disco/v3.0/ids/ec7520a1e057cd116f9544c42142a16b/redirect
+toolchainUrl.FREE_BSD.X86_64=https\://api.foojay.io/disco/v3.0/ids/4c4f879899012ff0a8b2e2117df03b0e/redirect
+toolchainUrl.LINUX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/ec7520a1e057cd116f9544c42142a16b/redirect
+toolchainUrl.LINUX.X86_64=https\://api.foojay.io/disco/v3.0/ids/4c4f879899012ff0a8b2e2117df03b0e/redirect
+toolchainUrl.MAC_OS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/73bcfb608d1fde9fb62e462f834a3299/redirect
+toolchainUrl.MAC_OS.X86_64=https\://api.foojay.io/disco/v3.0/ids/846ee0d876d26a26f37aa1ce8de73224/redirect
+toolchainUrl.UNIX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/ec7520a1e057cd116f9544c42142a16b/redirect
+toolchainUrl.UNIX.X86_64=https\://api.foojay.io/disco/v3.0/ids/4c4f879899012ff0a8b2e2117df03b0e/redirect
+toolchainUrl.WINDOWS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/9482ddec596298c84656d31d16652665/redirect
+toolchainUrl.WINDOWS.X86_64=https\://api.foojay.io/disco/v3.0/ids/39701d92e1756bb2f141eb67cd4c660e/redirect
+toolchainVersion=21
diff --git a/components/android/gradle/libs.versions.toml b/components/android/gradle/libs.versions.toml
new file mode 100644
index 0000000..7e21b06
--- /dev/null
+++ b/components/android/gradle/libs.versions.toml
@@ -0,0 +1,29 @@
+[versions]
+agp = "9.2.0"
+kotlin = "2.0.21"
+coreKtx = "1.18.0"
+junit = "4.13.2"
+junitVersion = "1.3.0"
+espressoCore = "3.7.0"
+appcompat = "1.7.1"
+material = "1.13.0"
+composeBom = "2024.10.01"
+
+[libraries]
+androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
+junit = { group = "junit", name = "junit", version.ref = "junit" }
+androidx-junit = { group = "androidx.test.ext", name = "junit", version.ref = "junitVersion" }
+androidx-espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version.ref = "espressoCore" }
+androidx-appcompat = { group = "androidx.appcompat", name = "appcompat", version.ref = "appcompat" }
+material = { group = "com.google.android.material", name = "material", version.ref = "material" }
+androidx-compose-bom = { group = "androidx.compose", name = "compose-bom", version.ref = "composeBom" }
+androidx-compose-foundation = { group = "androidx.compose.foundation", name = "foundation" }
+androidx-compose-ui = { group = "androidx.compose.ui", name = "ui" }
+androidx-compose-ui-graphics = { group = "androidx.compose.ui", name = "ui-graphics" }
+androidx-compose-ui-tooling = { group = "androidx.compose.ui", name = "ui-tooling" }
+androidx-compose-ui-tooling-preview = { group = "androidx.compose.ui", name = "ui-tooling-preview" }
+androidx-compose-material3 = { group = "androidx.compose.material3", name = "material3" }
+
+[plugins]
+android-library = { id = "com.android.library", version.ref = "agp" }
+kotlin-compose = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
diff --git a/components/android/gradle/wrapper/gradle-wrapper.jar b/components/android/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..8bdaf60
Binary files /dev/null and b/components/android/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/components/android/gradle/wrapper/gradle-wrapper.properties b/components/android/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..5077c4c
--- /dev/null
+++ b/components/android/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,9 @@
+#Mon Apr 27 21:49:22 PDT 2026
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionSha256Sum=2ab2958f2a1e51120c326cad6f385153bb11ee93b3c216c5fccebfdfbb7ec6cb
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.4.1-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/components/android/gradlew b/components/android/gradlew
new file mode 100755
index 0000000..ef07e01
--- /dev/null
+++ b/components/android/gradlew
@@ -0,0 +1,251 @@
+#!/bin/sh
+
+#
+# Copyright © 2015 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+# Gradle start up script for POSIX generated by Gradle.
+#
+# Important for running:
+#
+# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+# noncompliant, but you have some other compliant shell such as ksh or
+# bash, then to run this script, type that shell name before the whole
+# command line, like:
+#
+# ksh Gradle
+#
+# Busybox and similar reduced shells will NOT work, because this script
+# requires all of these POSIX shell features:
+# * functions;
+# * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+# «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+# * compound commands having a testable exit status, especially «case»;
+# * various built-in commands including «command», «set», and «ulimit».
+#
+# Important for patching:
+#
+# (2) This script targets any POSIX shell, so it avoids extensions provided
+# by Bash, Ksh, etc; in particular arrays are avoided.
+#
+# The "traditional" practice of packing multiple parameters into a
+# space-separated string is a well documented source of bugs and security
+# problems, so this is (mostly) avoided, by progressively accumulating
+# options in "$@", and eventually passing that to Java.
+#
+# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+# see the in-line comments for details.
+#
+# There are tweaks for specific operating systems such as AIX, CygWin,
+# Darwin, MinGW, and NonStop.
+#
+# (3) This script is generated from the Groovy template
+# https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+# within the Gradle project.
+#
+# You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+ APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
+ [ -h "$app_path" ]
+do
+ ls=$( ls -ld "$app_path" )
+ link=${ls#*' -> '}
+ case $link in #(
+ /*) app_path=$link ;; #(
+ *) app_path=$APP_HOME$link ;;
+ esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+ echo "$*"
+} >&2
+
+die () {
+ echo
+ echo "$*"
+ echo
+ exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in #(
+ CYGWIN* ) cygwin=true ;; #(
+ Darwin* ) darwin=true ;; #(
+ MSYS* | MINGW* ) msys=true ;; #(
+ NONSTOP* ) nonstop=true ;;
+esac
+
+CLASSPATH="\\\"\\\""
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+ if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+ # IBM's JDK on AIX uses strange locations for the executables
+ JAVACMD=$JAVA_HOME/jre/sh/java
+ else
+ JAVACMD=$JAVA_HOME/bin/java
+ fi
+ if [ ! -x "$JAVACMD" ] ; then
+ die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+else
+ JAVACMD=java
+ if ! command -v java >/dev/null 2>&1
+ then
+ die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+ case $MAX_FD in #(
+ max*)
+ # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+ # shellcheck disable=SC2039,SC3045
+ MAX_FD=$( ulimit -H -n ) ||
+ warn "Could not query maximum file descriptor limit"
+ esac
+ case $MAX_FD in #(
+ '' | soft) :;; #(
+ *)
+ # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+ # shellcheck disable=SC2039,SC3045
+ ulimit -n "$MAX_FD" ||
+ warn "Could not set maximum file descriptor limit to $MAX_FD"
+ esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+# * args from the command line
+# * the main class name
+# * -classpath
+# * -D...appname settings
+# * --module-path (only if needed)
+# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+ APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+ CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+ JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+ # Now convert the arguments - kludge to limit ourselves to /bin/sh
+ for arg do
+ if
+ case $arg in #(
+ -*) false ;; # don't mess with options #(
+ /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
+ [ -e "$t" ] ;; #(
+ *) false ;;
+ esac
+ then
+ arg=$( cygpath --path --ignore --mixed "$arg" )
+ fi
+ # Roll the args list around exactly as many times as the number of
+ # args, so each arg winds up back in the position where it started, but
+ # possibly modified.
+ #
+ # NB: a `for` loop captures its iteration list before it begins, so
+ # changing the positional parameters here affects neither the number of
+ # iterations, nor the values presented in `arg`.
+ shift # remove old arg
+ set -- "$@" "$arg" # push replacement arg
+ done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+# * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+# and any embedded shellness will be escaped.
+# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+# treated as '${Hostname}' itself on the command line.
+
+set -- \
+ "-Dorg.gradle.appname=$APP_BASE_NAME" \
+ -classpath "$CLASSPATH" \
+ -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
+ "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+ die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+# readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+# set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+ printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+ xargs -n1 |
+ sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+ tr '\n' ' '
+ )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/components/android/gradlew.bat b/components/android/gradlew.bat
new file mode 100644
index 0000000..5eed7ee
--- /dev/null
+++ b/components/android/gradlew.bat
@@ -0,0 +1,94 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/components/android/nucleus/.gitignore b/components/android/nucleus/.gitignore
new file mode 100644
index 0000000..42afabf
--- /dev/null
+++ b/components/android/nucleus/.gitignore
@@ -0,0 +1 @@
+/build
\ No newline at end of file
diff --git a/components/android/nucleus/build.gradle.kts b/components/android/nucleus/build.gradle.kts
new file mode 100644
index 0000000..b54c3f8
--- /dev/null
+++ b/components/android/nucleus/build.gradle.kts
@@ -0,0 +1,66 @@
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+
+plugins {
+ alias(libs.plugins.android.library)
+ alias(libs.plugins.kotlin.compose)
+}
+
+android {
+ namespace = "com.worldcoin.nucleus"
+ compileSdk {
+ version = release(36) {
+ minorApiLevel = 1
+ }
+ }
+
+ defaultConfig {
+ minSdk = 32
+ testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+ }
+
+ buildTypes {
+ release {
+ isMinifyEnabled = false
+ proguardFiles(
+ getDefaultProguardFile("proguard-android-optimize.txt"),
+ "proguard-rules.pro"
+ )
+ }
+ }
+
+ buildFeatures {
+ compose = true
+ }
+
+ compileOptions {
+ sourceCompatibility = JavaVersion.VERSION_17
+ targetCompatibility = JavaVersion.VERSION_17
+ }
+}
+
+kotlin {
+ compilerOptions {
+ jvmTarget.set(JvmTarget.JVM_17)
+ }
+}
+
+dependencies {
+ implementation(libs.androidx.appcompat)
+ implementation(libs.androidx.core.ktx)
+ implementation(libs.material)
+
+ val composeBom = platform(libs.androidx.compose.bom)
+ implementation(composeBom)
+ androidTestImplementation(composeBom)
+
+ api(libs.androidx.compose.foundation)
+ api(libs.androidx.compose.ui)
+ api(libs.androidx.compose.ui.graphics)
+ api(libs.androidx.compose.material3)
+ implementation(libs.androidx.compose.ui.tooling.preview)
+ debugImplementation(libs.androidx.compose.ui.tooling)
+
+ testImplementation(libs.junit)
+ androidTestImplementation(libs.androidx.espresso.core)
+ androidTestImplementation(libs.androidx.junit)
+}
diff --git a/components/android/nucleus/proguard-rules.pro b/components/android/nucleus/proguard-rules.pro
new file mode 100644
index 0000000..481bb43
--- /dev/null
+++ b/components/android/nucleus/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+# http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+# public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
\ No newline at end of file
diff --git a/components/android/nucleus/src/androidTest/java/com/worldcoin/nucleus/ExampleInstrumentedTest.kt b/components/android/nucleus/src/androidTest/java/com/worldcoin/nucleus/ExampleInstrumentedTest.kt
new file mode 100644
index 0000000..4447a76
--- /dev/null
+++ b/components/android/nucleus/src/androidTest/java/com/worldcoin/nucleus/ExampleInstrumentedTest.kt
@@ -0,0 +1,24 @@
+package com.worldcoin.nucleus
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+ @Test
+ fun useAppContext() {
+ // Context of the app under test.
+ val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+ assertEquals("com.worldcoin.nucleus", appContext.packageName)
+ }
+}
\ No newline at end of file
diff --git a/components/android/nucleus/src/main/AndroidManifest.xml b/components/android/nucleus/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..a47447a
--- /dev/null
+++ b/components/android/nucleus/src/main/AndroidManifest.xml
@@ -0,0 +1,15 @@
+
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diff --git a/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/Card.kt b/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/Card.kt
new file mode 100644
index 0000000..607b8e6
--- /dev/null
+++ b/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/Card.kt
@@ -0,0 +1,372 @@
+package com.worldcoin.nucleus.card
+
+import androidx.compose.animation.core.animateDpAsState
+import androidx.compose.foundation.BorderStroke
+import androidx.compose.foundation.background
+import androidx.compose.foundation.border
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.interaction.MutableInteractionSource
+import androidx.compose.foundation.interaction.collectIsPressedAsState
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.BoxScope
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.aspectRatio
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.LocalTextStyle
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.draw.shadow
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.compose.ui.zIndex
+import com.worldcoin.nucleus.CardCta
+import com.worldcoin.nucleus.CardEvent
+import com.worldcoin.nucleus.CardStyle
+
+@Composable
+fun Card(
+ title: String,
+ imageContent: @Composable BoxScope.() -> Unit,
+ modifier: Modifier = Modifier,
+ description: String? = null,
+ logoContent: (@Composable BoxScope.() -> Unit)? = null,
+ cta: CardCta? = null,
+ style: CardStyle = CardStyle(),
+ onEvent: (CardEvent) -> Unit = {},
+) {
+ when (style.textPlacement) {
+ CardTextPlacement.Overlay -> FloatingInfoCard(
+ title = title,
+ description = description,
+ imageContent = imageContent,
+ logoContent = logoContent,
+ cta = cta,
+ style = style,
+ onEvent = onEvent,
+ modifier = modifier,
+ )
+
+ CardTextPlacement.Below -> NonFloatingInfoCard(
+ title = title,
+ description = description,
+ imageContent = imageContent,
+ style = style,
+ onEvent = onEvent,
+ modifier = modifier,
+ )
+ }
+}
+
+@Composable
+private fun FloatingInfoCard(
+ title: String,
+ description: String?,
+ imageContent: @Composable BoxScope.() -> Unit,
+ logoContent: (@Composable BoxScope.() -> Unit)?,
+ cta: CardCta?,
+ style: CardStyle,
+ onEvent: (CardEvent) -> Unit,
+ modifier: Modifier = Modifier,
+) {
+ val interactionSource = remember { MutableInteractionSource() }
+ val isPressed by interactionSource.collectIsPressedAsState()
+ val elevation by animateDpAsState(if (isPressed) 4.dp else 0.dp)
+ val shape = RoundedCornerShape(style.cornerRadius)
+
+ Box(
+ modifier = modifier
+ .fillMaxWidth()
+ .aspectRatio(style.aspectRatio.ratio)
+ .zIndex(elevation.value)
+ .shadow(elevation = elevation, shape = shape)
+ .clip(shape)
+ .then(style.border.toModifier(shape))
+ .background(CardColors.imagePlaceholder)
+ .clickable(
+ interactionSource = interactionSource,
+ indication = null,
+ ) {
+ onEvent(CardEvent.Tap)
+ },
+ ) {
+ Box(modifier = Modifier.fillMaxSize(), content = imageContent)
+
+ Row(
+ modifier = Modifier
+ .fillMaxWidth()
+ .align(Alignment.BottomCenter)
+ .padding(if (style.size == CardSize.Small) 16.dp else 20.dp),
+ verticalAlignment = Alignment.CenterVertically,
+ ) {
+ if (logoContent != null) {
+ Box(
+ modifier = Modifier
+ .size(40.dp)
+ .clip(RoundedCornerShape(12.dp))
+ .background(CardColors.logoPlaceholder),
+ content = logoContent,
+ )
+
+ Spacer(modifier = Modifier.size(width = 12.dp, height = 1.dp))
+ }
+
+ Column(modifier = Modifier.weight(1f)) {
+ Text(
+ text = title,
+ style = style.titleTextStyle.copy(color = style.theme.primaryTextColor),
+ maxLines = 2,
+ overflow = TextOverflow.Ellipsis,
+ )
+
+ if (description != null) {
+ Text(
+ text = description,
+ style = style.subtitleTextStyle.copy(color = style.theme.secondaryTextColor),
+ maxLines = 2,
+ overflow = TextOverflow.Ellipsis,
+ modifier = Modifier.padding(top = if (cta == null) 8.dp else 2.dp),
+ )
+ }
+ }
+
+ if (cta != null) {
+ CardCtaButton(
+ cta = cta,
+ theme = style.theme,
+ onEvent = onEvent,
+ modifier = Modifier.padding(start = 8.dp),
+ )
+ }
+ }
+ }
+}
+
+@Composable
+private fun NonFloatingInfoCard(
+ title: String,
+ description: String?,
+ imageContent: @Composable BoxScope.() -> Unit,
+ style: CardStyle,
+ onEvent: (CardEvent) -> Unit,
+ modifier: Modifier = Modifier,
+) {
+ val interactionSource = remember { MutableInteractionSource() }
+ val isPressed by interactionSource.collectIsPressedAsState()
+ val elevation by animateDpAsState(if (isPressed) 2.dp else 0.dp)
+ val shape = RoundedCornerShape(style.cornerRadius)
+
+ Column(
+ modifier = modifier
+ .fillMaxWidth()
+ .zIndex(elevation.value)
+ .shadow(elevation = elevation, shape = shape)
+ .clip(shape)
+ .then(style.border.toModifier(shape))
+ .background(Color.White)
+ .clickable(
+ interactionSource = interactionSource,
+ indication = null,
+ ) {
+ onEvent(CardEvent.Tap)
+ }
+ .padding(8.dp),
+ ) {
+ Box(
+ modifier = Modifier
+ .fillMaxWidth()
+ .aspectRatio(style.aspectRatio.ratio)
+ .clip(shape)
+ .background(CardColors.imagePlaceholder),
+ content = imageContent,
+ )
+
+ Column(
+ modifier = Modifier.padding(top = 12.dp),
+ ) {
+ Text(
+ text = title,
+ style = style.titleTextStyle.copy(color = style.theme.primaryContainerColor),
+ maxLines = 1,
+ overflow = TextOverflow.Ellipsis,
+ )
+
+ if (description != null) {
+ Text(
+ text = description,
+ style = style.subtitleTextStyle.copy(color = style.theme.secondaryTextColor),
+ maxLines = 2,
+ overflow = TextOverflow.Ellipsis,
+ modifier = Modifier.padding(top = 2.dp),
+ )
+ }
+ }
+ }
+}
+
+@Composable
+private fun CardCtaButton(
+ cta: CardCta,
+ theme: CardTheme,
+ onEvent: (CardEvent) -> Unit,
+ modifier: Modifier = Modifier,
+) {
+ Text(
+ modifier = modifier
+ .clip(CircleShape)
+ .background(
+ color = theme.primaryContainerColor,
+ shape = CircleShape,
+ )
+ .clickable { onEvent(CardEvent.CtaTap(cta)) }
+ .padding(horizontal = 16.dp, vertical = 8.dp),
+ text = cta.title,
+ textAlign = TextAlign.Center,
+ maxLines = 1,
+ overflow = TextOverflow.Ellipsis,
+ style = LocalTextStyle.current.copy(
+ color = theme.primaryContainerTextColor,
+ fontSize = 14.sp,
+ fontWeight = FontWeight.SemiBold,
+ ),
+ )
+}
+
+private fun BorderStroke?.toModifier(shape: RoundedCornerShape): Modifier =
+ if (this == null) {
+ Modifier
+ } else {
+ Modifier.border(this, shape)
+ }
+
+private val CardTheme.primaryTextColor: Color
+ get() = when (this) {
+ CardTheme.Light -> Color.White
+ CardTheme.Dark -> CardColors.grey950
+ }
+
+private val CardTheme.secondaryTextColor: Color
+ get() = when (this) {
+ CardTheme.Light -> Color.White.copy(alpha = 0.6f)
+ CardTheme.Dark -> CardColors.grey700
+ }
+
+private val CardTheme.primaryContainerColor: Color
+ get() = when (this) {
+ CardTheme.Light -> Color.White
+ CardTheme.Dark -> CardColors.grey950
+ }
+
+private val CardTheme.primaryContainerTextColor: Color
+ get() = when (this) {
+ CardTheme.Light -> CardColors.grey950
+ CardTheme.Dark -> Color.White
+ }
+
+private object CardColors {
+ val grey500 = Color(0xFF9FA2A5)
+ val grey700 = Color(0xFF747679)
+ val grey950 = Color(0xFF17181A)
+ val imagePlaceholder = grey500
+ val logoPlaceholder = grey700
+}
+
+object CardDefaults {
+ val LargeOverlayLight = CardStyle(
+ size = CardSize.Large,
+ aspectRatio = CardAspectRatio.Landscape,
+ textPlacement = CardTextPlacement.Overlay,
+ theme = CardTheme.Light,
+ )
+ val LargeOverlayDark = CardStyle(
+ size = CardSize.Large,
+ aspectRatio = CardAspectRatio.Landscape,
+ textPlacement = CardTextPlacement.Overlay,
+ theme = CardTheme.Dark,
+ )
+ val MediumBelow = CardStyle(
+ size = CardSize.Medium,
+ aspectRatio = CardAspectRatio.Landscape,
+ textPlacement = CardTextPlacement.Below,
+ theme = CardTheme.Dark,
+ )
+ val SmallBelow = CardStyle(
+ size = CardSize.Small,
+ aspectRatio = CardAspectRatio.Landscape,
+ textPlacement = CardTextPlacement.Below,
+ theme = CardTheme.Dark,
+ )
+ val Tile = CardStyle(
+ size = CardSize.Large,
+ aspectRatio = CardAspectRatio.Square,
+ textPlacement = CardTextPlacement.Overlay,
+ theme = CardTheme.Dark,
+ cornerRadius = 24.dp,
+ border = BorderStroke(1.dp, Color(0xFFF3F4F5)),
+ )
+ val Story = CardStyle(
+ size = CardSize.Small,
+ aspectRatio = CardAspectRatio.Portrait,
+ textPlacement = CardTextPlacement.Overlay,
+ theme = CardTheme.Dark,
+ border = BorderStroke(1.dp, Color(0x0A181818)),
+ )
+}
+
+@Preview(showBackground = true, backgroundColor = 0xFFFFFFFF)
+@Composable
+private fun OverlayCardPreview() {
+ Card(
+ title = "Title goes here",
+ description = "Description goes here",
+ imageContent = {
+ Box(
+ modifier = Modifier
+ .fillMaxSize()
+ .background(Color(0xFFD7D9DC)),
+ )
+ },
+ logoContent = {
+ Box(
+ modifier = Modifier
+ .fillMaxSize()
+ .background(Color.White),
+ )
+ },
+ cta = CardCta(title = "Verify"),
+ style = CardDefaults.LargeOverlayLight,
+ )
+}
+
+@Preview(showBackground = true, backgroundColor = 0xFFFFFFFF)
+@Composable
+private fun BelowCardPreview() {
+ Card(
+ title = "Title goes here",
+ description = "Description goes here",
+ imageContent = {
+ Box(
+ modifier = Modifier
+ .fillMaxSize()
+ .background(Color(0xFFD7D9DC)),
+ )
+ },
+ style = CardDefaults.SmallBelow,
+ )
+}
diff --git a/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardAspectRatio.kt b/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardAspectRatio.kt
new file mode 100644
index 0000000..cf0fbc7
--- /dev/null
+++ b/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardAspectRatio.kt
@@ -0,0 +1,7 @@
+package com.worldcoin.nucleus.card
+
+enum class CardAspectRatio(val ratio: Float) {
+ Landscape(ratio = 16 / 11f),
+ Square(ratio = 1f),
+ Portrait(ratio = 3 / 4f),
+}
diff --git a/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardCta.kt b/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardCta.kt
new file mode 100644
index 0000000..e187768
--- /dev/null
+++ b/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardCta.kt
@@ -0,0 +1,8 @@
+package com.worldcoin.nucleus
+
+import androidx.compose.runtime.Stable
+
+@Stable
+data class CardCta(
+ val title: String,
+)
diff --git a/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardEvent.kt b/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardEvent.kt
new file mode 100644
index 0000000..4528e08
--- /dev/null
+++ b/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardEvent.kt
@@ -0,0 +1,6 @@
+package com.worldcoin.nucleus
+
+sealed interface CardEvent {
+ data object Tap : CardEvent
+ data class CtaTap(val cta: CardCta) : CardEvent
+}
diff --git a/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardSize.kt b/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardSize.kt
new file mode 100644
index 0000000..6d5b95c
--- /dev/null
+++ b/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardSize.kt
@@ -0,0 +1,7 @@
+package com.worldcoin.nucleus.card
+
+enum class CardSize {
+ Small,
+ Medium,
+ Large,
+}
diff --git a/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardStyle.kt b/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardStyle.kt
new file mode 100644
index 0000000..8c9f761
--- /dev/null
+++ b/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardStyle.kt
@@ -0,0 +1,25 @@
+package com.worldcoin.nucleus
+
+import androidx.compose.foundation.BorderStroke
+import androidx.compose.runtime.Stable
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import com.worldcoin.nucleus.card.CardAspectRatio
+import com.worldcoin.nucleus.card.CardSize
+import com.worldcoin.nucleus.card.CardTextPlacement
+import com.worldcoin.nucleus.card.CardTheme
+
+@Stable
+data class CardStyle(
+ val size: CardSize = CardSize.Medium,
+ val aspectRatio: CardAspectRatio = CardAspectRatio.Landscape,
+ val textPlacement: CardTextPlacement = CardTextPlacement.Below,
+ val theme: CardTheme = CardTheme.Dark,
+ val cornerRadius: Dp = 16.dp,
+ val border: BorderStroke? = null,
+ val titleTextStyle: TextStyle = TextStyle(fontSize = 16.sp, fontWeight = FontWeight.SemiBold),
+ val subtitleTextStyle: TextStyle = TextStyle(fontSize = 14.sp),
+)
diff --git a/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardTextPlacement.kt b/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardTextPlacement.kt
new file mode 100644
index 0000000..b1a536e
--- /dev/null
+++ b/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardTextPlacement.kt
@@ -0,0 +1,6 @@
+package com.worldcoin.nucleus.card
+
+enum class CardTextPlacement {
+ Below,
+ Overlay,
+}
diff --git a/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardTheme.kt b/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardTheme.kt
new file mode 100644
index 0000000..89f58c8
--- /dev/null
+++ b/components/android/nucleus/src/main/java/com/worldcoin/nucleus/card/CardTheme.kt
@@ -0,0 +1,6 @@
+package com.worldcoin.nucleus.card
+
+enum class CardTheme {
+ Light,
+ Dark,
+}
diff --git a/components/android/nucleus/src/main/res/drawable/ic_launcher_background.xml b/components/android/nucleus/src/main/res/drawable/ic_launcher_background.xml
new file mode 100644
index 0000000..07d5da9
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diff --git a/components/android/nucleus/src/main/res/drawable/ic_launcher_foreground.xml b/components/android/nucleus/src/main/res/drawable/ic_launcher_foreground.xml
new file mode 100644
index 0000000..2b068d1
--- /dev/null
+++ b/components/android/nucleus/src/main/res/drawable/ic_launcher_foreground.xml
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