rpi4: add new device

flake.lock

@@ -95,6 +95,22 @@
         "type": "github"
       }
     },
+    "nixos-hardware": {
+      "locked": {
+        "lastModified": 1680876084,
+        "narHash": "sha256-eP9yxP0wc7XuVaODugh+ajgbFGaile2O1ihxiLxOuvU=",
+        "owner": "NixOS",
+        "repo": "nixos-hardware",
+        "rev": "3006d2860a6ed5e01b0c3e7ffb730e9b293116e2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "master",
+        "repo": "nixos-hardware",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1681303793,
@@ -200,6 +216,7 @@
       "inputs": {
         "home-manager": "home-manager",
         "nixos-cn": "nixos-cn",
+        "nixos-hardware": "nixos-hardware",
         "nixpkgs": "nixpkgs",
         "nixpkgs-stable": "nixpkgs-stable",
         "nur": "nur",

flake.nix

@@ -15,6 +15,8 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
+    nixos-hardware.url = "github:NixOS/nixos-hardware/master";
+
     nixos-cn = {
       url = "github:nixos-cn/flakes";
       # Use the same nixpkgs
@@ -25,7 +27,8 @@
   };
 
 
-  outputs = { self, nixpkgs, nur, home-manager, sops-nix, nixos-cn, ... }@inputs:
+  outputs = { self, ... }@inputs:
+    with inputs;
     let
       mkHome = user: host: home-manager.nixosModules.home-manager {
         extraSpecialArgs = { inherit inputs; };
@@ -45,5 +48,27 @@
         ];
         specialArgs = inputs;
       };
+      nixosConfigurations.rpi4 = nixpkgs.lib.nixosSystem {
+        system = "aarch64-linux";
+        modules = [
+          machines/rpi4/configuration.nix
+          nixos-hardware.nixosModules.raspberry-pi-4
+        ];
+      };
+
+      images.rpi4 = (nixpkgs.lib.nixosSystem {
+        system = "aarch64-linux";
+        modules = [
+          "${nixpkgs}/nixos/modules/installer/sd-card/sd-image-aarch64.nix"
+          machines/rpi4/configuration.nix
+          nixos-hardware.nixosModules.raspberry-pi-4
+          {
+            nixpkgs.config.allowUnsupportedSystem = true;
+            nixpkgs.hostPlatform.system = "aarch64-linux";
+            nixpkgs.buildPlatform.system = "x86_64-linux";
+            # ... extra configs as above
+          }
+        ];
+      }).config.system.build.sdImage;
     };
 }

machines/rpi4/configuration.nix

@@ -0,0 +1,38 @@
+{ config, libs, pkgs, ... }:
+
+{
+  environment.systemPackages = with pkgs; [
+    vim
+  ];
+  nixpkgs.overlays = [
+    # Workaround https://github.com/NixOS/nixpkgs/issues/126755#issuecomment-869149243
+    (final: super: {
+      makeModulesClosure = x:
+        super.makeModulesClosure (x // { allowMissing = true; });
+    })
+  ];
+  
+  imports = [ ];
+
+  system.stateVersion = "22.11";
+  
+  networking = {
+    hostName = "pi-wh";
+    useDHCP = false;
+    interfaces.eth0.useDHCP = true;
+  };
+
+  services.openssh = {
+    enable = true;
+  };
+  
+  systemd.services.sshd.wantedBy = pkgs.lib.mkForce [ "multi-user.target" ];
+  
+  users.users.pi = {
+    isNormalUser = true;
+    home = "/home/pi";
+    extraGroups = [ "wheel" "networkmanager" ];
+    openssh.authorizedKeys.keys = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIInPn+7cMbH7zCEPJArU/Ot6oq8NHo8a2rYaCfTp7zgd xin@nixos" ];
+  };
+  
+}