I use gitea, with sometimes nextcloud tasks. I only make gitea issues for longer lived or more complex tasks because I can take a lot of notes along the way, and nextcloud tasks only for things that I want to show up in my calendar.
it would be so good if there was some kind of integration between the two, to create tasks for issues with a deadline.
earlier I have used vikunja instead of nextcloud for tasks, but it has the same limitations, plus thunderbird is not compatible with it (the only half decent calendar software I know of for windows), and the web client makes itself unusable when there’s no network, by which I mean you can’t even read the pages that you made sure to preload
It’s useful but opening such a form takes nearly as much time as filling it out