This is wrong. Obsidian is not open source. It’s a closed source app, that uses an open format (i.e. markdown).

I’ve seen this often and fallen for it myself, so much so that I think it could be considered an instance of the Mandela Effect xD

edit: see “Restrictions” in TOS https://obsidian.md/terms

I get it, I’ve been there, but there is just no point in hating yourself because random big company wants to make money off of you, so they shove convenience in your face. Just do you best to align yourself to your values. Doesn’t have to be perfect. It’s ok if it’s always work in progress. Don’t put your life and wellbeing on hold.

Also duckduckgo.com/aichat is a thing.

had the same question. after some research, I’m planning to switch to posteo.de