Option to use Nextcloud backend?

Could be interesting to use Nextcloud as an alternative backend server for this.

The Kanban app offers an API now: https://help.nextcloud.com/t/nextcloud-deck-releases-their-rest-api-congratulations/35246

And notes and note-versioning, tasks etc. might be doable through the qownnotes API: https://apps.nextcloud.com/apps/qownnotesapi

Anyways... just an idea :)