tudo lists

tudo is an experiment on simple, private, yet synchronized to-do lists.
Anonymous
No mandatory user accounts or tracking of any sort.
Shareable
Lists can be shared between your devices or trusted contacts simply using the list id.
Real-time
Changes to lists propagate immediately to every connected device where the app is open and online.
Private
Each to-do list has a random unique identifier that is effectively impossible to guess.
Offline-first
No loading screens. The app stores all the data it needs locally and works perfectly without a connection.
Open-source
Look at how it's built. Modify it. Host it yourself. Maybe help me improve it?