I'm doing a vaguely similar thing - I have a 10" rack minilab [1] and I've vibe-coded an MCP server that runs in the cluster to introspect, etc, but the main longterm goal is to set up some ML pipelines and maybe work toward formal verification via TLA+ or smth. (_not_ vibecoding that... I'm thinking of moving into AI formal verification or compliance automation as a career move.)
I have a separate amd64 server with an RTX 2070 Super - which is obviously old and low-powered. Useful for some general ML stuff, but I don't think it's sufficient to run any non-trivial modern LLM.
I'm thinking about upgrading that GPU, but haven't committed to it or even really thought that hard about it.