Desktop & mobile.
Bills, recipes, inventory, goals, ideas, general notes, reminders with alarm sounds...
You can use AI to push/get data on it (completely optional, nothing built-in into it). You can disable features. You can self-host and run your own instance, same app with the same capabilities.
I've been developing it for 6 months already, for my personal usage, and have recently released it under a FOSS license.
The code is available at https://github.com/ontoplano/ontoplano
Any feedback is appreciated!