Traditional to-do apps feel like backlogs of guilt. Building a local-first "Day Wheel" instead

Standard to-do apps just paralyze me with overdue red badges, and calendar time-blocking falls apart the second life runs 10 minutes off schedule. I just want to budget my daylight without chaining myself to arbitrary timestamps.
​The idea is a raw wheel of your waking hours where you drop in time chunks -say, 40 mins of language practice or an hour workout - and visually see your actual free time adjust. No rigid calendar slots. The app just periodically bugs you with notifications until you tap "Done" straight from your OS lock screen, wiping that slice from the circle. Overnight, it silently resets your routine.
​Keeping it completely local-first: a plain state.toml file, open-source on GitHub, zero accounts, zero cloud bloat, and you handle syncing across devices via Syncthing.
​Curious if anyone else craves this kind of low-friction loop, or if my brain is just uniquely broken by normal productivity tools?