add jetson host

flake.nix

@@ -19,9 +19,11 @@
     disko.inputs.nixpkgs.follows = "nixpkgs";
     jovian-nixos.url = "github:Jovian-Experiments/Jovian-NixOS";
     jovian-nixos.inputs.nixpkgs.follows = "nixpkgs";
+    jetpack-nixos.url = "github:anduril/jetpack-nixos";
+    jetpack-nixos.inputs.nixpkgs.follows = "nixpkgs";
   };
 
-  outputs = inputs@{ self, nix-darwin, nixpkgs, home-manager, nixvim, claude-code, firefox-addons, nix-homebrew, disko, jovian-nixos }:
+  outputs = inputs@{ self, nix-darwin, nixpkgs, home-manager, nixvim, claude-code, firefox-addons, nix-homebrew, disko, jovian-nixos, jetpack-nixos }:
   {
     darwinConfigurations."macbook" = nix-darwin.lib.darwinSystem {
       modules = [
@@ -67,6 +69,16 @@
       ];
     };
 
+    nixosConfigurations."jetson" = nixpkgs.lib.nixosSystem {
+      system = "aarch64-linux";
+      modules = [
+        disko.nixosModules.disko
+        jetpack-nixos.nixosModules.default
+        ./hosts/nixos/jetson/system.nix
+        ./hosts/nixos/jetson/disk-config.nix
+      ];
+    };
+
     homeConfigurations = {
       "yanlin@macbook" = home-manager.lib.homeManagerConfiguration {
         pkgs = nixpkgs.legacyPackages.aarch64-darwin;
@@ -97,6 +109,12 @@
         modules = [ ./hosts/nixos/deck/home.nix ];
         extraSpecialArgs = { inherit claude-code nixvim firefox-addons; };
       };
+
+      "yanlin@jetson" = home-manager.lib.homeManagerConfiguration {
+        pkgs = nixpkgs.legacyPackages.aarch64-linux;
+        modules = [ ./hosts/nixos/jetson/home.nix ];
+        extraSpecialArgs = { inherit claude-code nixvim; };
+      };
     };
   };
 }

hosts/nixos/jetson/disk-config.nix

@@ -0,0 +1,38 @@
+# Disko configuration for Jetson Orin Nano Super Developer Kit
+# Simple NVMe configuration with systemd-boot
+{
+  disko.devices = {
+    disk = {
+      main = {
+        type = "disk";
+        device = "/dev/nvme0n1";
+        content = {
+          type = "gpt";
+          partitions = {
+            # EFI System Partition
+            ESP = {
+              size = "512M";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = [ "fmask=0077" "dmask=0077" ];
+              };
+            };
+
+            # Root partition - takes remaining space
+            root = {
+              size = "100%";
+              content = {
+                type = "filesystem";
+                format = "ext4";
+                mountpoint = "/";
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+}

hosts/nixos/jetson/hardware-configuration.nix

@@ -0,0 +1,26 @@
+# PLACEHOLDER hardware configuration for Jetson Orin Nano
+# This file should be regenerated on the actual device by running:
+#   nixos-generate-config --root /mnt
+# Then copy the generated hardware-configuration.nix to this location.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  # These are placeholder kernel modules - will be auto-detected by nixos-generate-config
+  boot.initrd.availableKernelModules = [ "nvme" "usb_storage" "usbhid" "sd_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  # Filesystems are managed by disko configuration
+  # No filesystem declarations needed here
+
+  # Enable DHCP on network interfaces
+  networking.useDHCP = lib.mkDefault true;
+
+  # ARM64 platform for Jetson Orin Nano
+  nixpkgs.hostPlatform = lib.mkDefault "aarch64-linux";
+}

hosts/nixos/jetson/home.nix

@@ -0,0 +1,7 @@
+{ config, pkgs, ... }:
+
+{
+  imports = [
+    ../home-default.nix
+  ];
+}

hosts/nixos/jetson/system.nix

@@ -0,0 +1,64 @@
+{ config, pkgs, lib, ... }:
+
+{
+  imports = [
+    ./hardware-configuration.nix
+    ../system-default.nix  # Common NixOS system configuration
+  ];
+
+  # Bootloader - UEFI setup for Jetson
+  boot.loader = {
+    systemd-boot.enable = true;
+    systemd-boot.configurationLimit = 50;
+    efi.canTouchEfiVariables = true;
+    timeout = 3;
+  };
+
+  # Use latest kernel for best hardware support
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+
+  # Hardware support for Jetson Orin Nano
+  hardware = {
+    enableRedistributableFirmware = true;
+
+    # Graphics and CUDA configuration via jetpack-nixos
+    graphics.enable = true;
+
+    nvidia-jetpack = {
+      enable = true;
+      som = "orin-nano";
+      carrierBoard = "devkit";
+    };
+  };
+
+  # Network configuration
+  networking = {
+    hostName = "jetson";
+    networkmanager.enable = true;
+    firewall.enable = false;
+  };
+
+  # Host-specific SSH configuration
+  services.openssh = {
+    settings = {
+      PermitRootLogin = "no";
+    };
+  };
+
+  # Host-specific user configuration
+  users.users.yanlin = {
+    extraGroups = [ "networkmanager" "wheel" "video" ];
+    hashedPassword = "$6$kSyaRzAtj8VPcNeX$NsEP6zQAfp6O8YWcolfPRKnhIcJlKu5luZgWqozJAHtbE/gv90KoOOKU7Dt.FnbPB0Ej26jXoBH4X.7y/OLGB1";
+    openssh.authorizedKeys.keys = [
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICp2goZiuSfwMA02GsHhYzUZHrQPPBgP5sWSNP9kQR3e yanlin@imac"
+    ];
+  };
+
+  # Basic system packages
+  environment.systemPackages = with pkgs; [
+    pciutils
+    usbutils
+    unzip
+  ];
+
+}