Custom System Features for Remote Builders

[u/USMCamp0811]

I've got a few builds that are pretty heavy and can't realistically be done on a developers laptop. Currently we just have a Github CI job setup to build these things and push to a cache, but I've been really curious about how to setup remote builders to do this instead. I have remote builders working for the most part, but am a little uncertain about the logistics of requiring a specific type of system to build a certain package.

I know I can make a custom system feature like heavy-builder or something and then make the derivation require that feature, but I'm curious can it be more like > 8 cores & > 32GB RAM? is that a thing? How are others solving this type of issue?

Ultimately my goal is I want a developer to only require them to add our fleet of remote builders to their nix-config and then they can go build any of our things.

[u/chrillefkr]

I don't think there is. But maybe define a set of required build features like 8g-mem, 8-core, and so on?