I’ve been looking into all sorts of them recently: logseq, appflowy, vikunja, etc. What tools do you use? Why? What problems did you run into with the previous set of tools you used for this job?
Right now I’m primarily interested in finding a “zero-knowledge” (cloud provider doesn’t have access to my data) system for task management. Needs to be able to have recurring tasks and tasks organized in some interesting/useful ways (by projects/labels/something, maybe a kanban and table view). Deadlines and time tracking/planning interesting but not required.
Many have mentioned org-mode. I used it for years but have moved on to todo.txt and markdown. I use syncthing to keep notes up to date on my phone and computer. I edit with whatever is available on my desktop and I use markor notes on my phone.
I think this setup only lacks the recurring tasks option. I think org-mode can do that but I use my calendar for that.
This is a highly personal topic so I’d suggest trying as many things as you can. Something will stick eventually.
I used to do this, but todo.txt is a dead format now unfortunately, the maintainers left a long time ago. Tasks.org is where its at, open-source, sync how you want, tagging, recurring tasks.