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

A libre lightweight streaming front-end for Android.

Telegram for Android source

A podcast manager for Android

Text editor - Notes & ToDo (for Android) - Markdown, todo.txt, plaintext, math, ..

Wrapper of syncthing for Android.

A material designed music player for Android

Shuttle Music Player

Slide is an open-source, ad-free Reddit browser for Android.

Gnucash for Android mobile companion application.

An Android app for turning the screen off while keeping apps running.

A minimalistic note-taking app for android utilizing your phone's notification area.

ImgurViewer is a little image viewer to open image links from external applications in the fastest way possible.