not-os

shrunk

$ nix-build -A shrunk
/nix/store/g9h53c28y71czf94qi3jlm9w527r78b0-linux-4.14.84-shrunk

This is a subset of the module tree produced in the kernel derivation. The subset is specified by the rootModules argument in stage-1.nix.

That subset is packaged as part of the initrd.

The lis of modules can be extracted with:

$ nix-instantiate --eval --strict -A root-modules