To apply a system configuration:
sudo nixos-rebuild switch --flake .#hostname
To apply a home configuration:
home-manager switch --flake .#username@hostname
To build a package in ./pkgs:
nix build .#package-name
On Arch, install these packages:
qemu-system-aarch64 qemu-user-static qemu-user-static-binfmt
On non-NixOS, add these lines to /etc/nix/nix.conf:
# Allow us to build ARM64 packages using QEMU
extra-platforms = aarch64-linux
And systemctl restart nix-daemon.
On NixOS, add this line to configuration.nix:
boot.binfmt.emulatedSystems = [ "aarch64-linux" ];
Now you can build a VM with your host's config:
nixos-rebuild build-vm --flake .#hostname
A generic intaller:
nix build .#headless-image-rpi
Or a specific host:
nix build .#nixosConfigurations.stereo.config.system.build.sdImage
To uncompress the image:
Flash this image to an SD card:
zstdcat result/sd-image/nixos-image-rpi3-kernel.img.zst | sudo dd of=/dev/sdX bs=4M status=progress conv=fsync
Boot it and use deploy-rs to deploy your configuration.
nix build .#headless-image-cloud-x86_64-iso
Boot from the ISO.
Partition and mount the disk as described in the manual.
Create and mount a swapfile if you want.
rsync nix-config to the host
sudo nixos-install --no-root-passwd --flake .#<target>
nix run github:serokell/deploy-rs .#<target>