This is probably a problem specifically for @thedavidmeister, but I’m wondering if the nix-shell https://holochain.love
step could be replaced with a command which holonixifies the repo. Running this hypothetical command again would update the repo to the latest holonix environment.
You still get continuous integration but you choose when to upgrade.
I think this would make life much easier for intermediate-level use of holonix, making it simple to pull the latest configuration and then tweak it from there.