diff --git a/.gitignore b/.gitignore
index 01b729c..9a06de8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,11 @@
-.DS_Store
-*.jar
-build
+*.iml
 .gradle
+/local.properties
+/.idea
+.DS_Store
+build/
+captures/
+.externalNativeBuild
+.cxx
+*.jar
+!gradle/wrapper/gradle-wrapper.jar
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..2eca550
--- /dev/null
+++ b/README.md
@@ -0,0 +1,78 @@
+# a3270
+
+An Android TN3270 terminal emulator based on `lib3270j` / `j3270`, built with Jetpack Compose and ported using AI.
+
+## Repositories
+
+- **a3270 (Android App)**: https://git.hugfreevikings.wtf/rudi/a3270
+- **j3270 (Desktop App & `lib3270j` Core Library)**: https://git.hugfreevikings.wtf/rudi/j3270
+
+`a3270` relies on the shared 3270 protocol library (`lib3270j`) provided by the `j3270` repository.
+
+## Prerequisites
+
+- **Java Development Kit (JDK)**: JDK 17 or JDK 21
+- **Android SDK**: Android SDK with API 34 platforms and build-tools installed (`ANDROID_HOME` or `ANDROID_SDK_ROOT` set)
+
+## Setup & Building
+
+### 1. Clone Repositories Side-by-Side
+
+For the easiest setup, clone both `j3270` and `a3270` into the same parent folder:
+
+```bash
+git clone https://git.hugfreevikings.wtf/rudi/j3270.git
+git clone https://git.hugfreevikings.wtf/rudi/a3270.git
+cd a3270
+```
+
+> **Note:** If `j3270` is located in another directory, specify its location via the `J3270_DIR` environment variable:
+> ```bash
+> export J3270_DIR=/path/to/j3270
+> ```
+> or via Gradle property:
+> ```bash
+> ./gradlew assembleDebug -Pj3270Dir=/path/to/j3270
+> ```
+
+### 2. Build the Debug APK
+
+You can build using the helper script:
+
+```bash
+./build.sh
+```
+
+Or directly with Gradle Wrapper:
+
+```bash
+./gradlew assembleDebug
+```
+
+The compiled APK will be generated at:
+```
+build/outputs/apk/debug/a3270-debug.apk
+```
+
+## Deployment / Installation
+
+To install the debug APK onto a connected Android device or emulator via `adb`:
+
+```bash
+adb install -r build/outputs/apk/debug/a3270-debug.apk
+```
+
+## Contributing
+
+Contributions are welcome!
+
+I have contributed no code to this project, it was entirely written by LLMs with my guidance only.
+
+## Acknowledgements
+
+ - [j3270](https://git.hugfreevikings.wtf/rudi/j3270)
+ - [x3270](https://x3270.miraheze.org/wiki/Main_Page)
+ - [Antigravity](https://antigravity.google)
+ - Claude Opus 4.6
+ - Gemini 3.1 Pro (High)
+ - Gemini 3.7 Flash (High)
diff --git a/build.gradle b/build.gradle
index 507059c..204b724 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,6 +1,6 @@
 plugins {
-    id 'com.android.application'
-    id 'org.jetbrains.kotlin.android'
+    id 'com.android.application' version '8.2.2'
+    id 'org.jetbrains.kotlin.android' version '1.9.22'
 }
 
 android {
@@ -39,6 +39,16 @@ android {
     }
 }
 
+if (findProject(':lib3270j') != null) {
+    project(':lib3270j') {
+        apply plugin: 'java-library'
+        java {
+            sourceCompatibility = JavaVersion.VERSION_11
+            targetCompatibility = JavaVersion.VERSION_11
+        }
+    }
+}
+
 dependencies {
     implementation project(':lib3270j')
 
diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..f6410c0
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,54 @@
+#!/bin/bash
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+cd "$SCRIPT_DIR"
+
+echo "=== Building a3270 (Android APK) ==="
+
+# Set up JAVA_HOME if not already set
+if [ -z "$JAVA_HOME" ]; then
+    if [ -d "/Users/rudi/.sdkman/candidates/java/21.0.6-sem" ]; then
+        export JAVA_HOME="/Users/rudi/.sdkman/candidates/java/21.0.6-sem"
+    elif [ -d "/Users/rudi/.sdkman/candidates/java/current" ]; then
+        export JAVA_HOME="/Users/rudi/.sdkman/candidates/java/current"
+    fi
+fi
+
+# Set up ANDROID_HOME if not already set
+if [ -z "$ANDROID_HOME" ]; then
+    if [ -d "$HOME/Library/Android/sdk" ]; then
+        export ANDROID_HOME="$HOME/Library/Android/sdk"
+    fi
+fi
+
+if [ -n "$JAVA_HOME" ]; then
+    echo "Using JAVA_HOME: $JAVA_HOME"
+fi
+
+if [ -n "$ANDROID_HOME" ]; then
+    echo "Using ANDROID_HOME: $ANDROID_HOME"
+fi
+
+# Check for j3270 / lib3270j
+J3270_PATH="${J3270_DIR:-$SCRIPT_DIR/../j3270}"
+if [ ! -d "$J3270_PATH/lib3270j" ]; then
+    echo "ERROR: lib3270j not found at $J3270_PATH/lib3270j"
+    echo "Please ensure the j3270 repository is cloned alongside a3270:"
+    echo "  git clone https://git.hugfreevikings.wtf/rudi/j3270.git"
+    echo "Or set the J3270_DIR environment variable:"
+    echo "  export J3270_DIR=/path/to/j3270"
+    exit 1
+fi
+
+echo "Building debug APK..."
+./gradlew assembleDebug --no-daemon
+
+APK_PATH="$SCRIPT_DIR/build/outputs/apk/debug/a3270-debug.apk"
+if [ -f "$APK_PATH" ]; then
+    echo "=== Build Complete ==="
+    echo "APK created at: $APK_PATH"
+    ls -lh "$APK_PATH"
+else
+    echo "Build completed, but APK not found at $APK_PATH"
+fi
diff --git a/gradle.properties b/gradle.properties
new file mode 100644
index 0000000..50234ab
--- /dev/null
+++ b/gradle.properties
@@ -0,0 +1,2 @@
+android.useAndroidX=true
+org.gradle.jvmargs=-Xmx2048m -XX:MaxMetaspaceSize=512m
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..d64cd49
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..1af9e09
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
new file mode 100755
index 0000000..1aa94a4
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,249 @@
+#!/bin/sh
+
+#
+# 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.
+# 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.
+#
+
+##############################################################################
+#
+#   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/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/.
+#
+##############################################################################
+
+# 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 "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&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=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$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, 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" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$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/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..6689b85
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,92 @@
+@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
+
+@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.
+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
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+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%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+: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/settings.gradle b/settings.gradle
new file mode 100644
index 0000000..8f4de58
--- /dev/null
+++ b/settings.gradle
@@ -0,0 +1,33 @@
+pluginManagement {
+    repositories {
+        google {
+            content {
+                includeGroupByRegex("com\\.android.*")
+                includeGroupByRegex("com\\.google.*")
+                includeGroupByRegex("androidx.*")
+            }
+        }
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.PREFER_PROJECT)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.name = 'a3270'
+
+// Resolve lib3270j from sibling j3270 repo or configured path
+def j3270Path = hasProperty('j3270Dir') ? property('j3270Dir') : (System.getenv('J3270_DIR') ?: '../j3270')
+def lib3270jDir = file("${j3270Path}/lib3270j")
+
+if (lib3270jDir.exists()) {
+    include ':lib3270j'
+    project(':lib3270j').projectDir = lib3270jDir
+} else {
+    logger.warn("WARNING: lib3270j not found at '${lib3270jDir.absolutePath}'. Please clone j3270 next to a3270 or set J3270_DIR.")
+}