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.

.devcontainer/devcontainer.json

@@ -0,0 +1,20 @@
+{
+  "name": "terminal-ui",
+  "image": "mcr.microsoft.com/devcontainers/java:1-21-bookworm",
+  "features": {
+    "ghcr.io/devcontainers/features/java:1": {
+      "version": "21",
+      "installGradle": "true",
+      "installMaven": "false"
+    }
+  },
+  "postCreateCommand": "java -version && ./gradlew --version",
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "vscjava.vscode-java-pack",
+        "vscjava.vscode-gradle"
+      ]
+    }
+  }
+}

.editorconfig

@@ -0,0 +1,20 @@
+# EditorConfig: consistent style across editors
+# https://editorconfig.org
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.{java,kts}]
+indent_style = space
+indent_size = 4
+
+[*.{yml,yaml,md,json}]
+indent_size = 2
+
+[*.bat]
+end_of_line = crlf

.gitattributes

@@ -0,0 +1,9 @@
+# Normalize line endings
+* text=auto eol=lf
+*.bat text eol=crlf
+*.cmd text eol=crlf
+
+# GitHub linguist: don't count these as language
+gradle/wrapper/gradle-wrapper.jar binary
+*.jar binary
+*.zip binary

.github/release-drafter.yml

@@ -0,0 +1,27 @@
+# Config for release-drafter v6: categorizes PRs in draft release notes
+# https://github.com/release-drafter/release-drafter
+
+template: |
+  ## What's Changed
+
+  $CHANGES
+
+  **Full Changelog**: https://github.com/jakubbbdev/terminal-ui/compare/$PREVIOUS_TAG...v$RESOLVED_VERSION
+
+name-template: 'v$RESOLVED_VERSION'
+tag-template: 'v$RESOLVED_VERSION'
+
+categories:
+  - title: '🚀 Features'
+    labels: [feature, enhancement]
+  - title: '🐛 Bug Fixes'
+    labels: [bug, fix]
+  - title: '📚 Documentation'
+    labels: [documentation]
+  - title: '⬆️ Dependencies'
+    labels: [dependencies]
+  - title: 'Other'
+    labels: ['*']
+
+exclude-labels:
+  - skip-changelog

.github/workflows/codeql.yml

@@ -21,6 +21,13 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 21
+          cache: gradle
+
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v3
         with:

.github/workflows/release-drafter.yml

@@ -0,0 +1,22 @@
+# Drafts release notes from merged PRs when you create a release.
+# Install: add a Release Drafter config (see below), then create a release on GitHub;
+# this workflow will update the draft with categorized PRs.
+name: Release Drafter
+
+on:
+  push:
+    branches: [main, master]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  update_release_draft:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Draft Release
+        uses: release-drafter/release-drafter@v6
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.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

@@ -3,6 +3,54 @@
 Java library for terminal UI: tables, rules, colors, prompts, menus, SelectList, pager, and more. Fluent API, ANSI support, testable.
 
 [![CI](https://github.com/jakubbbdev/terminal-ui/actions/workflows/ci.yml/badge.svg)](https://github.com/jakubbbdev/terminal-ui/actions/workflows/ci.yml)
+[![Java 21](https://img.shields.io/badge/Java-21-ED8B00?logo=openjdk)](https://openjdk.org/)
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](LICENSE)
+
+[![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
 
@@ -21,18 +69,6 @@ Run tests:
 ./gradlew test
 ```
 
-Demo (non-interactive):
-
-```bash
-./gradlew run
-```
-
-Interactive demo (best run in a real terminal):
-
-```bash
-./gradlew runDemo2
-```
-
 ## Usage (excerpt)
 
 ```java

SECURITY.md

@@ -0,0 +1,11 @@
+# Security
+
+## Reporting a vulnerability
+
+If you find a security issue, please report it responsibly:
+
+1. **Do not** open a public issue.
+2. Email the maintainers or report via [GitHub Security Advisories](https://github.com/jakubbbdev/terminal-ui/security/advisories/new) (if enabled).
+3. Give a clear description and steps to reproduce; we’ll respond as soon as we can.
+
+Thank you for helping keep this project safe.

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
@@ -30,3 +30,24 @@ 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()
+            }
+        }
+    }
+}

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
+#Fri Mar 13 15:14:45 CET 2026
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.4.0-bin.zip
-networkTimeout=10000
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.0.0-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -1,7 +1,7 @@
 #!/bin/sh
 
 #
-# Copyright © 2015 the original authors.
+# Copyright © 2015-2021 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.
@@ -15,8 +15,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-# SPDX-License-Identifier: Apache-2.0
-#
 
 ##############################################################################
 #
@@ -57,7 +55,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/b631911858264c0b6e4d6603d677ff5218766cee/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -82,11 +80,13 @@ do
     esac
 done
 
-# This is normally unused
-# shellcheck disable=SC2034
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
 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
+
+# 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"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -114,6 +114,7 @@ case "$( uname )" in                #(
   NONSTOP* )        nonstop=true ;;
 esac
 
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
 
 # Determine the Java command to use to start the JVM.
@@ -132,29 +133,22 @@ 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.
+    which java >/dev/null 2>&1 || 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 $MAX_FD"
     esac
@@ -171,6 +165,7 @@ fi
 # For Cygwin or MSYS, switch paths to Windows format before running java
 if "$cygwin" || "$msys" ; then
     APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
 
     JAVACMD=$( cygpath --unix "$JAVACMD" )
 
@@ -198,27 +193,18 @@ if "$cygwin" || "$msys" ; then
     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.
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
 
 set -- \
         "-Dorg.gradle.appname=$APP_BASE_NAME" \
-        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
         "$@"
 
-# 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.

gradlew.bat

@@ -13,8 +13,6 @@
 @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 ##########################################################################
@@ -28,7 +26,6 @@ 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%
 
@@ -43,13 +40,13 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if %ERRORLEVEL% equ 0 goto execute
+if "%ERRORLEVEL%" == "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
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
 
 goto fail
 
@@ -59,33 +56,32 @@ 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
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
 
 goto fail
 
 :execute
 @rem Setup the command line
 
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 
 @rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
 
 :end
 @rem End local scope for the variables with windows NT shell
-if %ERRORLEVEL% equ 0 goto mainEnd
+if "%ERRORLEVEL%"=="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%
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
 
 :mainEnd
 if "%OS%"=="Windows_NT" endlocal

src/main/java/dev/jakub/terminal/interactive/Confirm.java

@@ -72,7 +72,7 @@ public final class Confirm {
     }
 
     /**
-     * Uses the given scanner for one line. Use when sharing one scanner (e.g. demo).
+     * Uses the given scanner for one line. Use when sharing one scanner (e.g. interactive app).
      */
     public boolean ask(Scanner sharedScanner) {
         if (sharedScanner == null) return ask();

src/main/java/dev/jakub/terminal/interactive/Prompt.java

@@ -64,7 +64,7 @@ public final class Prompt {
 
     /**
      * Prompts and returns the next line from the given scanner. Use this when
-     * sharing one scanner (e.g. in a demo) so input blocks correctly.
+     * sharing one scanner (e.g. in an interactive app) so input blocks correctly.
      */
     public String ask(Scanner sharedScanner) {
         if (sharedScanner == null) return ask();