Update README with GitHub Packages installation guide and enhance project configuration

- Add installation instructions for Gradle and Maven in the README.
- Update `.idea/misc.xml` for Java 21 compatibility.
- Improve release workflow with clearer build and publish step naming.

.github/workflows/release.yml

@@ -1,4 +1,4 @@
-# On push of a version tag (e.g. v1.0.0): build, create GitHub Release, upload JARs.
+# On push of a version tag (e.g. v1.0.0): build, publish to GitHub Packages, create Release, upload JARs.
 name: Release
 
 on:
@@ -8,10 +8,13 @@ on:
 
 permissions:
   contents: write
+  packages: write
 
 jobs:
   release:
     runs-on: ubuntu-latest
+    env:
+      RELEASE_VERSION: ${{ github.ref_name }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -23,7 +26,13 @@ jobs:
           java-version: 21
           cache: gradle
 
-      - run: chmod +x gradlew && ./gradlew build --no-daemon
+      - name: Strip v from version
+        run: echo "RELEASE_VERSION=${RELEASE_VERSION#v}" >> $GITHUB_ENV
+
+      - name: Build and publish to GitHub Packages
+        run: chmod +x gradlew && ./gradlew build publish --no-daemon
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Create Release
         uses: softprops/action-gh-release@v2

.idea/misc.xml

@@ -4,7 +4,7 @@
   <component name="FrameworkDetectionExcludesConfiguration">
     <file type="web" url="file://$PROJECT_DIR$" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="corretto-21" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="corretto-21" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

README.md

@@ -8,6 +8,50 @@ Java library for terminal UI: tables, rules, colors, prompts, menus, SelectList,
 
 [![Open in GitHub Codespaces](https://github.com/codespaces/badge.svg)](https://codespaces.new/jakubbbdev/terminal-ui)
 
+## Install
+
+Published to [GitHub Packages](https://github.com/jakubbbdev/terminal-ui/packages). Replace `VERSION` with a [release](https://github.com/jakubbbdev/terminal-ui/releases) tag (e.g. `1.0.0`).
+
+**Gradle (Kotlin DSL):**
+
+```kotlin
+repositories {
+    mavenCentral()
+    maven { url = uri("https://maven.pkg.github.com/jakubbbdev/terminal-ui") }
+}
+dependencies {
+    implementation("dev.jakub.terminal:terminal-ui:VERSION")
+}
+```
+
+**Gradle (Groovy):**
+
+```groovy
+repositories {
+    mavenCentral()
+    maven { url "https://maven.pkg.github.com/jakubbbdev/terminal-ui" }
+}
+dependencies {
+    implementation "dev.jakub.terminal:terminal-ui:VERSION"
+}
+```
+
+**Maven:**
+
+```xml
+<repository>
+  <id>github</id>
+  <url>https://maven.pkg.github.com/jakubbbdev/terminal-ui</url>
+</repository>
+<dependency>
+  <groupId>dev.jakub.terminal</groupId>
+  <artifactId>terminal-ui</artifactId>
+  <version>VERSION</version>
+</dependency>
+```
+
+For public packages, read access usually works without credentials. If your tool asks for auth, use a [GitHub PAT](https://github.com/settings/tokens) with `read:packages` as username and the token as password.
+
 ## Requirements
 
 - **Java 21**

build.gradle.kts

@@ -2,15 +2,15 @@ plugins {
     id("java")
     id("java-library")
     id("application")
+    id("maven-publish")
 }
 
 tasks.named<JavaExec>("run") {
     jvmArgs("-Ddev.jakub.terminal.ansi=true", "-Dfile.encoding=UTF-8")
 }
 
-
 group = "dev.jakub.terminal"
-version = "1.0-SNAPSHOT"
+version = System.getenv("RELEASE_VERSION") ?: "1.0-SNAPSHOT"
 
 java {
     sourceCompatibility = JavaVersion.VERSION_21
@@ -29,4 +29,25 @@ dependencies {
 
 tasks.test {
     useJUnitPlatform()
+}
+
+publishing {
+    publications {
+        create<MavenPublication>("maven") {
+            groupId = project.group.toString()
+            artifactId = "terminal-ui"
+            version = project.version.toString()
+            from(components["java"])
+        }
+    }
+    repositories {
+        maven {
+            name = "GitHubPackages"
+            url = uri("https://maven.pkg.github.com/jakubbbdev/terminal-ui")
+            credentials {
+                username = System.getenv("GITHUB_ACTOR") ?: project.findProperty("gpr.user")?.toString()
+                password = System.getenv("GITHUB_TOKEN") ?: project.findProperty("gpr.token")?.toString()
+            }
+        }
+    }
 }