Piano - Piano lets you quickly learn the piano or other musical instruments using cell phones and tablets, and also contains magic tiles and different mini-games.
ForkHub - GitHub client for Android based on the abandoned official app
Guitar - Git GUI Client. Open Source, Free Software (GPL v2). Run on Windows, macOS and Linux.
GITK - The GITK - Generalized Interface Tool Kit is a set of libraries, which form a (user) interface...
Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.
Sublime Merge - Fast git client with integrated merge tool from the makers of Sublime Text