Randevu - a tiny, serverless, universal reminder scheduler.
Feed any string ("MARIO_KART", "THE_MATRIX_1999", a YouTube video, etc.) + today's date into the library, and it deterministically tells you (and everyone else) whether today is the day to be reminded - and at exactly what UTC time.
No apps, no accounts, no sync; just BLAKE3-based probabilistic coordination that works offline for everything - forever.
Rust/Python/JS/TS, fully FOSS.
