Obsidian uses markdown files stored in a folder, so any fileshare should work fine. There's no account management or permissions needed, either you have the .md

Obsidian uses markdown files stored in a folder, so any fileshare should work fine. There's no account management or permissions needed, either you have the .md files or you don't. I use Dropbox to carry notes between my PC and laptop, but I've seen a lot of talk of hosting on GitHub or similar services as well, which would give you revision history and authoring if you needed to know who did what