Help with trying to get dev environment going on latest

I think this could be related to the Rails 7 / Zeitwerk changes. I don’t see exactly where it’s required from the stack trace, but since you mention foreman_fog_proxmox:

I think that line should be dropped. In Zeitwerk merge imminent and Rails 7.0 merge today I added some links to common issues you need to resolve. Usually they’re not hard, just require a bit of effort.