This is a major reason to use simpler technology.

I can’t help you, but i had a similar experience with similar technology. I spent lots of time recovering content. I succeeded, but i have software development experience. I didn’t want a repeat of that.

In the end I picked windows file sharing for home networking and filebrowser for occasional access to data files from outside of home networking.

Web dav is a very good alternative. Apache web server will be easier, but nginx can be made to work.

Joplin is another good alternative, which is based on web dav.

You can pay around $2-$3 a month to shared services provider for hosted web dav.