first attempt at sd image for rockpro64.

flake.nix

@@ -105,6 +105,7 @@
     packages.x86_64-linux = {
       proxmox = import ./packages/proxmox.nix {inherit inputs configLib;};
       iso = import ./packages/iso.nix {inherit inputs configLib;};
+      rockpro64-image = import ./packages/rockpro64-image.nix {inherit inputs configLib;};
     };
 
     templates = import ./templates;

packages/rockpro64-image.nix

@@ -0,0 +1,117 @@
+# Edit this configuration file to define what should be installed on
+# your system.  Help is available in the configuration.nix(5) man page
+# and in the NixOS manual (accessible by running ‘nixos-help’).
+{
+  inputs,
+  configLib,
+  ...
+}:
+(inputs.nixpkgs.lib.nixosSystem {
+  system = "aarch64-linux";
+  specialArgs = {inherit inputs configLib;};
+  # > Our main nixos configuration file <
+  modules = [
+    inputs.home-manager.nixosModules.home-manager
+    ../configs/nixos/interactive-networking.nix
+    ../configs/nixos/common.nix
+    ../configs/nixos/sshd.nix
+    ../roles/nixos/power-saving.nix
+    ({
+      config,
+      pkgs,
+      lib,
+      inputs,
+      configLib,
+      modulesPath,
+      options,
+      ...
+    }: {
+      # nixpkgs.crossSystem.system="aarch64-linux";
+      nixpkgs.buildPlatform.system = "x86_64-linux";
+      nixpkgs.hostPlatform.system = "aarch64-linux";
+      imports = [
+        # "${modulesPath}/installer/sd-card/sd-image.nix"
+        "${modulesPath}/installer/sd-card/sd-image-aarch64.nix"
+      ];
+      host = {
+        user = "gabe";
+        fullName = "Gabe Venberg";
+        gui.enable = true;
+      };
+      networking.hostName = "nixos-installer"; # Define your hostname.
+
+      users.users.${config.host.user} = {
+        packages = with pkgs; [
+          gparted
+          firefox
+        ];
+      };
+
+      home-manager.users.${config.host.user} = {
+        inputs,
+        osConfig,
+        ...
+      }: {
+        host = osConfig.host;
+        user = {
+          nvim.enable = false;
+          git = {
+            profile = {
+              name = "Gabe Venberg";
+              email = "gabevenberg@gmail.com";
+            };
+            workProfile.enable = false;
+          };
+        };
+        imports = [
+          ../roles/home-manager/minimal-terminal.nix
+          ../configs/home-manager/common.nix
+          inputs.nixvim.homeManagerModules.nixvim
+        ];
+      };
+
+      boot.loader.grub.enable = false;
+      boot.loader.generic-extlinux-compatible.enable = true;
+
+      boot.consoleLogLevel = lib.mkDefault 7;
+      boot.kernelParams = ["console=ttyS0,115200n8" "console=ttyAMA0,115200n8" "console=tty0"];
+
+      # Adds terminus_font for people with HiDPI displays
+      console.packages = options.console.packages.default ++ [pkgs.terminus_font];
+
+      # Tell the Nix evaluator to garbage collect more aggressively.
+      # This is desirable in memory-constrained environments that don't
+      # (yet) have swap set up.
+      environment.variables.GC_INITIAL_HEAP_SIZE = "1M";
+
+      # Make the installer more likely to succeed in low memory
+      # environments.  The kernel's overcommit heustistics bite us
+      # fairly often, preventing processes such as nix-worker or
+      # download-using-manifests.pl from forking even if there is
+      # plenty of free memory.
+      boot.kernel.sysctl."vm.overcommit_memory" = "1";
+
+      # To speed up installation a little bit, include the complete
+      # stdenv in the Nix store on the CD.
+      system.extraDependencies = with pkgs; [
+        stdenv
+        stdenvNoCC # for runCommand
+        busybox
+        jq # for closureInfo
+        # For boot.initrd.systemd
+        makeInitrdNGTool
+      ];
+
+      # Show all debug messages from the kernel but don't log refused packets
+      # because we have the firewall enabled. This makes installs from the
+      # console less cumbersome if the machine has a public IP.
+      networking.firewall.logRefusedConnections = lib.mkDefault false;
+
+      system.stateVersion = lib.mkDefault lib.trivial.release;
+    })
+  ];
+})
+.config
+.system
+.build
+.sdImage