Until official integration /cloud solution I’m using Nextcloud WebDAV sharing. So WebDAV shared folder is local folder for Logseq. My office Laptop+ homePC + Home Linux Laptop are using same Nextcloud folder shared with WebDAV.
https://docs.nextcloud.com/server/latest/user_manual/en/files/access_webdav.html
I suppose editing same page simultaneously is not possible this way but on the other hand I’m only at one machine at the time 