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- Todo list: Nextcloud Deck, it has a web app and android app. Tasks here are usually long term, and I only update them infrequently
- For quick notes and tasks Nextcloud tasks, on mobile I edit with opentasks, and sync with davx5, on desktop I edit them in Thunderbird.
- Everything which has a date or deadline goes to the calendar. Again it's nextcloud, synced with davx5, etar is my calendar app on android, Thunderbird on desktop.
- Shopping list goes to HomeAssistant