Ok! Same. Try https://Obsidian.md.

I love Obsidian. I know note apps like this are extremely personal, but Obsidian clicked for me and I adore it.

obsidian is closed source.

whoops! so it is. my notes are 100% offline, local, and portable, and the plugins and themes are OSS, but you're right about the core app and its license. so maybe it doesn't fit the bill for parent.

What I don’t feel comfortable with from generic file sync solutions is the uncertain conflict resolution handling.

At least with Evernote (far from perfect) I get a dialog informing me a conflict was found and it keeps both versions allowing me to do a manual merge.

Synching does that and is open source. I use obsidian and synching to keep everything synced from my laptop to my phone and server.

Can attest. Any conflict it can't resolve, it'll add the other version it's comparing and append "(Conflict from 5/7/20 1:00pm)" or something to it's name.

Not saying it's bullet proof, but I've never lost anything before.

I was a very early adopter and there was a time when it hit race conditions that somehow caused it to delete all files in a shared directory.

...that has not happened in the last few years, despite my intensified usage.

Joplin I think has its own built-in conflict resolution. I use my own WebDAV server for sync and don't have any problems across 3 devices.

It uses couch db with it’s conflict resolution system. I think you can even bring your own couch db instance

Free Joplin with end-to-end encryption and many useful plugins is hard to beat. The mobile apps are not very polished but work reliably.

What risks do you see coming from using a closed source app for your notes? Backups look pretty good, FWIW: https://docs.inkdrop.app/manual/backing-up-your-data

I love Joplin but the Android app really needs an update. It's missing a lot of important features that are available on desktop.

A bit confused, because Synology DSM is closed source and vendor locked-in.