[feature request] mark own modules as not imported by default

[pyrox0]

I would like to be able to mark certain modules defined in my flake as not imported to all systems by default.

Currently, I have a module that configures a buildbot-nix worker. However, this means that I also have to add buildbot-nix.nixosModules.buildbot-worker to systems.modules.nixos so that all systems pick it up. This increases evaluation time and is also a lot "dirtier" in terms of what I'm importing, since most machines will not have the buildbot worker on them. Therefore, if I could mark a module as non-importable somehow, I could make it so that only machines that will run a worker will import this, and by extension, also the buildbot-worker module from buildbot-nix. Is this possible at all with snowfall?

[olifloof]

iirc you can use

systems.hosts.my-host.modules = with inputs; [
  # my-input.nixosModules.my-module
];

to make specific systems import a module

[olifloof]

wait you're already using that 🥴

[pyrox0]

Yes, what I want to do is to make it so that self.nixosModules."services/buildbot"(which is defined in my flake) is not imported to all systems by default(which happens with all systems by default, per the first line of the Modules doc page), as it then requires me to import buildbot-nix.nixosModules.buildbot-worker to all systems.

[olifloof]

you could try - although it would be a bit awkward - to move the module to a separate repo and import from there