Thank you for your kind words! I’m happy that you enjoyed the game. :D
I’ve added the open source tag. Thanks!
I love F-Droid! I intend to publish Gridlocked on F-Droid when I can. Right now, to publish there, I need to first create a better automated build system. I couldn’t get it working quickly, so I figured I’d start by releasing the DRM-free APK here on itch.io, so people could start playing and enjoying it. I’ll keep you posted with my progress on an F-Droid build (such as it is) in the dev logs on this page. :)
Hope you continue to enjoy connecting those pipes and wires!