There is no automated config sync (maybe one day) but you can do it manually via Settings > Backup & Restore.
The configuration is also all stored in normal files, so they can be copied between machines. But note that some files are only read when Opus starts and potentially only written back when it exits, so parts of the configuration aren't suited to automatic syncing while Opus is still running.
When using Settings > Backup & Restore, everything will be written to disk first, of course.