I have read up on setting up kopia server and have one running on a server on my local lan. However, I am curious to know if there is any reason I should setup a kopia server on a server on my local lan vs just keeping the repo on local disk and then using rclone to keep a copy of the repo on that same server and a copy in B2. Any opinions on this would be appreciated.
You don’t need rclone at all. You might want to use option sync-to directly to create/update spare backup repositories, locally (a spare local repository on some external hard drive) as well directly to B2. Just run after all snapshots completed sync-to to update spare repositories.