Add initial nixos-anywhere config
It likely doesn't work, but I have to commit it to use it.
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33
nixos-anywhere/configuration.nix
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33
nixos-anywhere/configuration.nix
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{
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modulesPath,
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lib,
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pkgs,
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...
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} @ args:
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{
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imports = [
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(modulesPath + "/installer/scan/not-detected.nix")
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(modulesPath + "/profiles/qemu-guest.nix")
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./disk-config.nix
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];
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boot.loader.grub = {
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# no need to set devices, disko will add all devices that have a EF02 partition to the list already
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# devices = [ ];
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efiSupport = true;
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efiInstallAsRemovable = true;
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};
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services.openssh.enable = true;
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environment.systemPackages = map lib.lowPrio [
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pkgs.curl
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pkgs.gitMinimal
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];
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users.users.root.openssh.authorizedKeys.keys =
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[
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# change this to your ssh key
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"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBvhtF6nRWlA6PVs71Eek7p0p2PxTd3P6ZEGFV2t75MB eliribble@nixos"
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] ++ (args.extraPublicKeys or []); # this is used for unit-testing this module and can be removed if not needed
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system.stateVersion = "25.05";
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}
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70
nixos-anywhere/digitalocean.nix
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70
nixos-anywhere/digitalocean.nix
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{ lib, modulesPath, ... }:
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{
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imports = [
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"${modulesPath}/virtualisation/digital-ocean-config.nix"
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];
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# do not use DHCP, as DigitalOcean provisions IPs using cloud-init
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networking.useDHCP = lib.mkForce false;
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# Disables all modules that do not work with NixOS
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services.cloud-init = {
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enable = true;
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network.enable = true;
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settings = {
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datasource_list = [
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"ConfigDrive"
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"Digitalocean"
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];
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datasource.ConfigDrive = { };
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datasource.Digitalocean = { };
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# Based on https://github.com/canonical/cloud-init/blob/main/config/cloud.cfg.tmpl
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cloud_init_modules = [
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"seed_random"
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"bootcmd"
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"write_files"
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"growpart"
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"resizefs"
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"set_hostname"
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"update_hostname"
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# Not support on NixOS
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#"update_etc_hosts"
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# throws error
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#"users-groups"
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# tries to edit /etc/ssh/sshd_config
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#"ssh"
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"set_password"
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];
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cloud_config_modules = [
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"ssh-import-id"
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"keyboard"
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# doesn't work with nixos
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#"locale"
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"runcmd"
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"disable_ec2_metadata"
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];
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## The modules that run in the 'final' stage
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cloud_final_modules = [
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"write_files_deferred"
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"puppet"
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"chef"
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"ansible"
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"mcollective"
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"salt_minion"
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"reset_rmc"
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# install dotty agent fails
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#"scripts_vendor"
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"scripts_per_once"
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"scripts_per_boot"
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# /var/lib/cloud/scripts/per-instance/machine_id.sh has broken shebang
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#"scripts_per_instance"
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"scripts_user"
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"ssh_authkey_fingerprints"
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"keys_to_console"
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"install_hotplug"
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"phone_home"
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"final_message"
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];
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};
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};
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}
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56
nixos-anywhere/disk-config.nix
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56
nixos-anywhere/disk-config.nix
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# Example to create a bios compatible gpt partition
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{ lib, ... }:
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{
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disko.devices = {
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disk.disk1 = {
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device = lib.mkDefault "/dev/sda";
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type = "disk";
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content = {
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type = "gpt";
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partitions = {
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boot = {
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name = "boot";
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size = "1M";
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type = "EF02";
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};
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esp = {
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name = "ESP";
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size = "500M";
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type = "EF00";
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content = {
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type = "filesystem";
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format = "vfat";
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mountpoint = "/boot";
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};
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};
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root = {
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name = "root";
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size = "100%";
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content = {
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type = "lvm_pv";
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vg = "pool";
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};
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};
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};
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};
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};
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lvm_vg = {
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pool = {
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type = "lvm_vg";
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lvs = {
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root = {
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size = "100%FREE";
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content = {
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type = "filesystem";
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format = "ext4";
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mountpoint = "/";
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mountOptions = [
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"defaults"
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];
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};
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};
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};
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};
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};
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};
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}
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69
nixos-anywhere/flake.nix
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69
nixos-anywhere/flake.nix
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{
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inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
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inputs.disko.url = "github:nix-community/disko";
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inputs.disko.inputs.nixpkgs.follows = "nixpkgs";
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inputs.nixos-facter-modules.url = "github:numtide/nixos-facter-modules";
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outputs =
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{
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nixpkgs,
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disko,
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nixos-facter-modules,
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...
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}:
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{
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nixosConfigurations.hetzner-cloud = nixpkgs.lib.nixosSystem {
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system = "x86_64-linux";
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modules = [
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disko.nixosModules.disko
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./configuration.nix
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];
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};
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# tested with 2GB/2CPU droplet, 1GB droplets do not have enough RAM for kexec
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nixosConfigurations.digitalocean = nixpkgs.lib.nixosSystem {
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system = "x86_64-linux";
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modules = [
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./digitalocean.nix
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disko.nixosModules.disko
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{ disko.devices.disk.disk1.device = "/dev/vda"; }
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./configuration.nix
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];
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};
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nixosConfigurations.hetzner-cloud-aarch64 = nixpkgs.lib.nixosSystem {
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system = "aarch64-linux";
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modules = [
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disko.nixosModules.disko
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./configuration.nix
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];
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};
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# Use this for all other targets
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# nixos-anywhere --flake .#generic --generate-hardware-config nixos-generate-config ./hardware-configuration.nix <hostname>
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nixosConfigurations.generic = nixpkgs.lib.nixosSystem {
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system = "x86_64-linux";
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modules = [
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disko.nixosModules.disko
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./configuration.nix
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./hardware-configuration.nix
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];
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};
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# Slightly experimental: Like generic, but with nixos-facter (https://github.com/numtide/nixos-facter)
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# nixos-anywhere --flake .#generic-nixos-facter --generate-hardware-config nixos-facter facter.json <hostname>
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nixosConfigurations.generic-nixos-facter = nixpkgs.lib.nixosSystem {
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system = "x86_64-linux";
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modules = [
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disko.nixosModules.disko
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./configuration.nix
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nixos-facter-modules.nixosModules.facter
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{
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config.facter.reportPath =
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if builtins.pathExists ./facter.json then
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./facter.json
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else
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throw "Have you forgotten to run nixos-anywhere with `--generate-hardware-config nixos-facter ./facter.json`?";
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}
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];
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};
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};
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}
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