[conaws]

Co-founder here.

Best self hosted tools are Org-mode and nValt.

Neither have full feature set, or work collaboratively, but nvalt in particular gives a good 80/20.

We export to plaintext markdown that reads well in either, planning export to org mode with enough data for a good elisp hacker to build parity of main features -- will do sooner if we know there are takers for that.

Have seen cool analysis of JSON export in Wolfram Alpha.

[barrkel]

Nobody in their right mind should put anything they can't afford to lose in your service until this clause is adjusted to include some kind of export: https://news.ycombinator.com/item?id=22105480

[conaws]

Good point. Will update.