Cal.com - Cal.com (formerly Calendso) is the open source Calendly alternative.
ATLauncher - ATLauncher is a launcher which has many groups made mod packs for the prominent sandbox game Minecraft.
WhenWorks - Mobile appointment scheduling
LaunchCode - Launch Apps and Actions with Gestures.
Inspora - virtual chat-stylist for fashion advice.
TLauncher - There are not so many good Minecraft launchers nowadays, and yet they exist – TLauncher being one of them.