[throwawayqqq11]

PSA:

nixos-rebuild build-vm (--flake DIR#HOSTNAME / configuration.nix)

./result/bin/SCRIPT

to build and launch a nixos vm with qemu.

[KingMachiavelli]

IMO the nixos-rebuild scripts are unnecessary and just obscures what’s being built.

build-vm is the same as building the configs “config.system.build.vm” attribute.

nixos-rebuild is fine for getting started but you end up needing to use the attribute path to do anything more complicated like CI caching or inspecting the drvPath.