The goal is actually that I’m able to hook my ticket tracking system (I’m using Zammad) to various ToDo lists I can expose to other people. I’m happy to write middleware to make that work, but I don’t want to write a whole ToDo app.
Needs to be able to track multiple lists that can be shared in a granular way (I want to share some lists with some people and other lists with other people).
I’ve been using https://kolaente.dev/vikunja/vikunja
It has options for sharing and assigning people to a task, but I only use it for personal stuff so haven’t checked properly those features.
I’m not sure how the integration experience would be since I’m not familiar with calDAV.
I second this answer. Vikunja is like a selfhosted Trello
Same here ! Self-hosted vikunja working great for personal use. It has so much to offer and It worked flawlessly for months ! But haven’t tested it in a multi-user environment, so I can’t vouch for the working state of those features.
On thing that’s missing (but it’s in the backlog, and will be reimplemented soon!) Is the integration with a todo app like jtx board or OpenBoard.
It works, but because of the new editor, the todo’s aren’t transcribed back to markdown, so you have an unreadable html mess. But that’s okay I can live witout it, the web environment is working great anyway :).