Version

• android-release-version-app
• android-beta-version-app

apk support range

• Android 17 - Android 7.0
• Android TV、Android

Root-free flash scheme

• This project allows you to perform Fastboot flashing in a root-free environment and connect to adbd

Local Shell solution

• For the Shell executor, we may need to migrate to the foreground service to fully use all the instructions that come with Android 14+. The background process daemon service solution may no longer be a recommended solution for Android 14+ systems.
• For the existing local shell service, I would refactor it in V4.2 or V4.3

Android Shell actuator

• How to use shell script to call internal instructions of the application
• For example, calling the root-free fastboot command implemented inside the application

#!/system/bin/sh

# The prerequisite for using the fastboot instruction is isFastbootMode = true
fastboot() {
#  am broadcast -a com.adb.kitty.MY_CMD --es "args" "$*" > /dev/null
    am broadcast -a com.adb.kitty.MY_CMD --es "cmd" "$*" > /dev/null
}

fastboot getvar unlocked
fastboot oem device-info

DocumentsProvider

• You don't need to use MT Manager to inject a file provider for your APK to create the corresponding local storage directory

Signature scheme sample script

• Now there are not only sample scripts in the project, but also built APKs, which use signature schemes v2, v3, v3.1, and v3.2 respectively.
• Hope this sample script can help you

Verify signature scheme

• Verify v3.2 signature scheme using JDK 25

$ java --version
openjdk 25.0.4 2026-07-21
OpenJDK Runtime Environment (build 25.0.4)
OpenJDK 64-Bit Server VM (build 25.0.4, mixed mode)

• Verify Release APK

$ ./apksigner verify -v --verbose app-release-sign.apk
Verifies
Verified using v1 scheme (JAR signing): false
Verified using v2 scheme (APK Signature Scheme v2): true
Verified using v3 scheme (APK Signature Scheme v3): true
Verified using v3.1 scheme (APK Signature Scheme v3.1): true
Verified using v3.2 scheme (APK Signature Scheme v3.2): true
Verified using v4 scheme (APK Signature Scheme v4): false
Verified for SourceStamp: false
Number of signers: 1

• Verify Debug APK

$ ./apksigner verify -v --verbose app-debug-sign.apk
Verifies
Verified using v1 scheme (JAR signing): false
Verified using v2 scheme (APK Signature Scheme v2): true
Verified using v3 scheme (APK Signature Scheme v3): true
Verified using v3.1 scheme (APK Signature Scheme v3.1): true
Verified using v3.2 scheme (APK Signature Scheme v3.2): true
Verified using v4 scheme (APK Signature Scheme v4): false
Verified for SourceStamp: false
Number of signers: 1

Commercial license

• commercialization allowed
• Allow transactional
• Allow templating

Acknowledgements

• Android
• Kotlin-lang
• Gradle-Builds
• Cmake
• Kadb
• OpenSSL
• libsu
• android-Kernel-su
• android-Hidden-api
• Termux-app
• Termux-ubuntu
• android-sdk-aarch64
• android-ndk-aarch64
• MT-DocumentsProvider