I like the Markdown-based approach but Sync is way to expensive for my use-case…

Have you seen the community-made self hosted sync plugin?

I have not, does it work well?

Yeah, works nice as long as you have a server to host it on.

The only annoyance is that it’s not very space efficient and you have to rebuild your database like twice a year to bring the size back down. It might be not that bad depending on what you do. I create above thousand new lines of notes with a lot of pictures every day and I’m at around 2GB after rebuilding the database. I expect it to go up to like 6GB biyearly, but, again, clicking on the rebuild button deals with that.

You don’t need a server, I use drop box. You can also do Amazon S3 which is more involved but not as hard as a server. And 5 more options.

Ale we talking about the same thing?

github.com/vrtmrz/obsidian-livesync