Build ISO installer
nix build .#nixosConfigurations.installer-iso.config.system.build.isoImage

Build kiosk system and push to Attic cache
nix build .#nixosConfigurations.radiantwavekiosk.config.system.build.toplevel
attic push kiosk ./result

Deploy to a specific kiosk over SSH
nixos-rebuild switch --flake .#radiantwavekiosk --target-host root@<host>

---

## How these build paths work

The build commands follow the flake output attribute tree. Start with `flake.nix`:

```nix
nixosConfigurations = {
  radiantwavekiosk = nixpkgs.lib.nixosSystem { ... };   # production machine
  installer-iso  = nixpkgs.lib.nixosSystem { ... };   # USB installer
};
```

Each `nixosConfiguration` is a full NixOS system. You access what you want to build
by walking the attribute tree with dots:

```
.#nixosConfigurations.<name>.config.system.build.<target>
│ │                    │                         │
│ │                    │                         └─ what to build:
│ │                    │                            toplevel  = full system closure
│ │                    │                            isoImage  = bootable ISO
│ │                    │
│ │                    └─ name from flake.nix (radiantwavekiosk, installer-iso)
│ │
│ └─ nixosConfigurations = standard flake output for NixOS systems
│
└─ .# = "this flake, attribute..."
```

You can explore what's available with:
  nix eval .#nixosConfigurations --apply builtins.attrNames
  nix eval .#nixosConfigurations.radiantwavekiosk.config.system.build --apply builtins.attrNames