Ghidra is a software reverse engineering (SRE) framework

All Algorithms implemented in Java

Termux - a terminal emulator application for Android OS extendible by variety of packages.

Getting Started with Spring Boot 3:

Learn System Design concepts and prepare for interviews using free resources.

Telegram for Android source

Open-source IoT Platform - Device management, data collection, processing and visualization.

Logstash - transport and process your logs, events, or other data

Some Android learning materials, hoping to help you learn Android development.

Install and run GNU/Linux on Android

A Reddit client for Android

Termux add-on app which exposes device functionality as API to command line programs.

Android application to brute force WiFi passwords without requiring a rooted device.