castkit: CLI Demo Videos From One Command

Every CLI tool I've ever shipped had the same problem: zero visual presence. Then I built castkit - a castkit CLI demo video generator that turns any binary into a polished MP4 or GIF with one command. No screen recording software. No manual scripting. No video editing. Open source, written in Rust, and the meta-demo sells it better than I can: castkit generates its own demo video. Check the repo before reading further if you want to see the output first. Why I actually built this Screen recording CLI tools is a pain in the ass. You open your terminal, run the command, inevitably typo something on the third take, realize the font looks weird, forget to hide your API key in the environment, and end up with a 45-second raw recording you now have to edit in Final Cut. The existing options all have real tradeoffs. asciinema is free and captures terminal output, but the playback looks like a terminal log - no visual polish, no branding, nothing you'd put on a landing page. Screen Studio cos