Daily backups. Currently using restic on my NixOS servers. To avoid data corruption, I make a zfs snapshot at 2am, and after that restic does a backup of my mutable data dirs both to my local Nas and CloudFlare r3. The Nas backup folder is synced to backblaze nightly as well for a more cold store.

Also checkout orpheus alongside redacted. Smaller site but significant overlap with redacted, many have accounts with both. You can ‘crosspost’ your music torrents to both.

I’ve been using logseq with syncthing for sync, across laptop/desktop/Android. Works ok, app can be a little chunky though and sometimes the manualness of coding queries can. E annoying. I have used joplin, trillium, Zim and a few others in the past. Installed silver bullet as a try too but haven’t gotten far into playing with it