[chrisweekly]

Not OP but I'm a very happy longtime Obsidian user. Maybe a little unfair to characterize as "paywalled" given their sync service is optional (and works very well), and a directory of markdown files is about as portable and flexible as it gets for self-hosting.

[j45]

Sync is a pretty core feature though for any such app, and it is paywalled for the many instead of the few who can figure it out for themselves.

[chrisweekly]

Ok, maybe? But given Obsidian itself is FREE(!), IMHO charging $4/mo for sync is eminently reasonable.