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.
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.
Is it dead or complete? For my purposes, it doesn't need any changes.
Try asking the maintainers for clarification or an update on anything. They're gone.