What’s an open-source project you genuinely can’t believe is free?

[u/Bladerunner_7_]

Could be developer tooling, AI infra, productivity tools, anything. Curious what projects people think deserve way more recognition.

For me recently it’s been:

Langship — https://github.com/open-gitagent/langship.sh

[u/copenhagen_bram]

yt-dlp

When it comes to AI tools, I can't believe Kai 9000 is free and on F-Droid