I run a mainnet Dojo and have for years on Fedora. It hasn't been too bad. The biggest problem has been Fedora updates changing Docker behavior.
You can use my Dojo if it doesn't work out but then you are trusting your xpub to me which isn't the preferred setup.
I just setup a testnet Dojo and was thinking about putting the QR up on Nostr so that people that wanted to play around with Ashigaru could try it out with minimal effort.