I've used Electrumx for years. I used to run it as a public server but now I just run it for myself. It works great. I wouldn't call it light weight however. I think typical people run Electrs for personal Electrum servers.
Fulcrum is supposed to have the best performance but it also uses the most from a resource perspective.
I did opt for Electrs, in part due to resources, and in part due to it being Bitcoin-only. Electrum-Personal-Server was the other one that came up but I figured I'd want to be able to provided access to my wife and kid so that got ruled out quickly. Fulcrum did almost win me over so I could set up an Ashigaru Dojo, but I don't think either will play nice with the raspberry pi 4 anyway.
Yeah, a #Bitcoin node and Electrs are plenty on a Pi. I used a Pi years ago and thought it wasn't adequate then.
I have considered upgrading to a mini pc or something else cheap off ebay and use the pi for a nostr relay or something of the sort. It'll run Knots (which I'm sure helps over bitcoin-core with sane mempool policy) and Electrs fine enough, with BTC-RPC-Explorer. All I really need it to do for a start. Realizing I can use Phoenix for my zaps makes me not care so much about running a full lightning node at this point. If anything I was thinking of taking a crack at Ashigaru Dojo, which seems like it'll be intensive.
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.
