Was looking for the same for ages. Every option I found was either some bloated docker solution or a dead project.
Gave up and just created a repo named “Todo” on my git server. It’s not really designed to be used for this kind of stuff but git and a web ui works perfectly fine. Just open a new issue. Give it a title and a brief description, a due date and some tags. Then you can create more subtasks, add comments to each, references etc. Even got my non-technical wife to use it.
With some customization you could probably get exactly what you want.
Edit: just realized you probably wanted something more simple. Set up a caldav server and sync the tasks using your preferred to-do app.
For those who aren’t familiar with Swedish domestic politics: this is a good example of why you shouldn’t believe everything you read on the internet. The parent comment appears to be written in bad faith and borders disinformation.
The Sweden Democrats/Sverigedemokraterna, which the poster is referring to as nazis, have always been advocaters for a more strict migration policy. Apart from that they are pretty much aligned in the middle.
The actual nazi party (Nordiska Motståndsrörelsen) got 847 votes (0,01%) in the 2022 riksdag election and the poster knows this. Alternativ För Sverige/AfS, the closet nazis and where most people draw the actual line for the extreme right, got 16 646 votes (0,26%). Data from The Swedish Election Authority