GrapheneOS is a privacy and security focused mobile OS with Android app compatibility developed as a non-profit open source project. It's focused on the research and development of privacy and security technology including substantial improvements to sandboxing, exploit mitigations and the permission model.
LambdaNative is an open-source (BSD licensed) cross-platform development environment written in Scheme (Gambit-C), supporting Android, iOS, BlackBerry 10, OS X, Linux, Windows, OpenBSD, and NetBSD. Some cross-compiler support for Raspberry Pi (Carlson-Minot) and OpenWrt (Sitara) also exists. See also https://www.lambdanative.org/
Filestash (formerly nuage) is a web client for org-mode. It started as its author believe emacs and org-mode are the greatest thing since sliced bread. The project aims to fix the pain points org-mode's users may have:
- emacs isn't great out of the desktop world, it needs a cross platform companion app
- not everyone is willing to go through learning emacs which makes org-mode a hard to sell tool to manage team project.