Texmaker is my go-to offline LaTeX editor. In addition, use JabRef for bibliography management and you’ll live happily ever after.

if it’s just rudimentary GitHub stats you need, wouldn’t that be covered in the Insights views somehow?

I’ve just switched this week from SwiftKey, which was the best keyboard I have ever used. Made the switch just to abandon a piece of proprietary software, but oh boy… HeliBoard has way exceeded my expectations!

Holy crap, the quality of the generated input is incredible.

Two tools come to mind:

• Apache Kibble
• GrimoireLab

In general, you might want to look into CHAOSS for more details.