Add Jules' RockPro64

flake.nix

@@ -65,6 +65,7 @@
       kitty = mkNix [ ./hosts/kitty ]; # Dell Optiplex 7010
       midas = mkNix [ ./hosts/midas ]; # Dell Optiplex 5040
       prophet = mkNix [ ./hosts/prophet ]; # Oracle Neoverse-N1
+      rubble = mkNix [ ./hosts/rubble ]; # ROCKPro64 SBC
     };
 
     # home-manager switch --flake /etc/nixos#username

hosts/envy/default.nix

@@ -17,6 +17,7 @@
   system = {
     desktop.enable = true;
     lanzaboote.enable = true;
+    fancyboot.enable = true;
     wireless.enable = true;
     wireguard.client.enable = true;
     libvirtd.enable = true;

hosts/midas/default.nix

@@ -16,6 +16,7 @@
   system = {
     desktop.enable = true;
     lanzaboote.enable = true;
+    fancyboot.enable = true;
     libvirtd.enable = true;
     stateVersion = "24.11";
   };

hosts/prophet/boot/default.nix

@@ -1,4 +1,4 @@
-{ lib, pkgs, ... }:
+{ pkgs, ... }:
 {
   boot = {
     kernelPackages = pkgs.linuxPackages_hardened;

hosts/redmond/boot/default.nix

@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ ... }:
 {
   boot.kernelParams = [
     "radeon.cik_support=0"

hosts/redmond/default.nix

@@ -18,6 +18,7 @@
   system = {
     desktop.enable = true;
     lanzaboote.enable = true;
+    fancyboot.enable = true;
     wireless.enable = true;
     wireguard.client.enable = true;
     stateVersion = "24.05";

hosts/rubble/default.nix

@@ -0,0 +1,21 @@
+{ ... }:
+{
+  imports = [
+    ./disko
+    ./hardware
+    ./users
+    ../../modules/system
+  ];
+
+  networking = {
+    hostName = "rubble";
+    hostId = "3d16423a";
+  };
+
+  system = {
+    desktop.enable = true;
+    extlinux.enable = true;
+    wireguard.client.enable = true;
+    stateVersion = "24.11";
+  };
+}

hosts/rubble/disko/default.nix

@@ -0,0 +1,90 @@
+{ config, disko, ... }:
+{
+  imports = [ disko.nixosModules.disko ];
+
+  disko.devices = {
+    disk = {
+      "${config.networking.hostName}" = {
+        type = "disk";
+        device = "/dev/mmcblk1";
+        content = {
+          type = "gpt";
+          partitions = {
+            ESP = {
+              priority = 1;
+              size = "2G";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = [ "umask=0077" ];
+              };
+            };
+            luks = {
+              size = "100%";
+              content = {
+                type = "luks";
+                name = "${config.networking.hostName}-disk";
+                settings.allowDiscards = true;
+                passwordFile = "/tmp/secret.key";
+                content = {
+                  type = "lvm_pv";
+                  vg = "${config.networking.hostName}";
+                };
+              };
+            };
+          };
+        };
+      };
+    };
+
+    lvm_vg = {
+      "${config.networking.hostName}" = {
+        type = "lvm_vg";
+        lvs = {
+          root = {
+            size = "100%";
+            content = {
+              type = "btrfs";
+              extraArgs = [ "-f" ];
+              subvolumes = {
+                "/root" = {
+                  mountpoint = "/";
+                  mountOptions = [ "compress=zstd" "noatime" "ssd" ];
+                };
+                "/prev" = {
+                  mountpoint = "/prev";
+                  mountOptions = [ "compress=zstd" "noatime" "ssd" "noexec" ];
+                };
+                "/nix" = {
+                  mountpoint = "/nix";
+                  mountOptions = [ "compress=zstd" "noatime" "ssd" ];
+                };
+
+                # Impermanence
+                "/persist" = {
+                  mountpoint = "/persist";
+                  mountOptions = [ "compress=zstd" "noatime" "ssd" ];
+                };
+                "/persist/.snapshots" = { };
+                "/persist/home/${config.sysusers.main}" = { };
+                "/persist/home/${config.sysusers.main}/.snapshots" = { };
+              };
+            };
+          };
+          swap = {
+            size = "4G";
+            content = {
+              type = "swap";
+              discardPolicy = "both";
+            };
+          };
+        };
+      };
+    };
+  };
+
+  # Needed for impermanence
+  fileSystems."/persist".neededForBoot = true;
+}

hosts/rubble/hardware/default.nix

@@ -0,0 +1,9 @@
+{ config, lib, modulesPath, ... }:
+{
+  imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
+
+  boot.initrd.kernelModules = [ "ahci" "dm-snapshot" "mmc_core" "pcie_rockchip_host" "phy_rockchip_pcie" "rockchip_dfi" "rockchip_thermal" "rtc_rk808" "rockchip_saradc" "uas" "fusb302" ];
+
+  networking.useDHCP = lib.mkDefault true;
+  nixpkgs.hostPlatform = lib.mkDefault "aarch64-linux";
+}

hosts/rubble/id_ed25519.pub

@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF4oyz5yAvmVZDdr3NL2AmlnCA6Z17b2Vj0FXj07DFiv jimbo@rubble

hosts/rubble/users/default.nix

@@ -0,0 +1,4 @@
+{ ... }:
+{
+  imports = [ ./main ];
+}

hosts/rubble/users/main/default.nix

@@ -0,0 +1,7 @@
+{ config, lib, ... }:
+{
+  home-manager.users."${config.sysusers.main}".home = {
+    desktop.enable = true;
+    stateVersion = lib.mkForce config.system.stateVersion;
+  };
+}

modules/home/programs/gui/looking-glass/default.nix

@@ -1,7 +1,7 @@
 { config, ... }:
 {
   programs.looking-glass-client = {
-    enable = config.home.desktop.enable;
+    enable = if config.home.desktop.enable && config.nixpkgs.system == "x86_64-linux" then true else false;
     settings = {
       input = {
         rawMouse = true;

modules/system/accounts/users/custom/main/default.nix

@@ -19,6 +19,7 @@
         ../../../../../../hosts/kitty/id_ed25519.pub
         ../../../../../../hosts/midas/id_ed25519.pub
         ../../../../../../hosts/prophet/id_ed25519.pub
+        ../../../../../../hosts/rubble/id_ed25519.pub
       ];
       openssh.authorizedKeys.keys = [
         "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJahAoF74BY6GCTsFkt1ADKaraFgJJozW1Y1aBTLK0j9 Pixel9"

modules/system/devices/boot/default.nix

@@ -1,6 +1,7 @@
 { ... }:
 {
   imports = [
+    ./extlinux
     ./lanzaboote
     ./plymouth
     ./services

modules/system/devices/boot/extlinux/default.nix

@@ -0,0 +1,10 @@
+{ config, lib, ... }:
+{
+  options.system.extlinux.enable = lib.mkEnableOption "Enable extlinux";
+
+  config.boot.loader = lib.mkIf config.system.extlinux.enable {
+    grub.enable = false;
+    systemd-boot.enable = lib.mkForce false;
+    generic-extlinux-compatible.enable = true;
+  };
+}

modules/system/devices/boot/plymouth/default.nix

@@ -1,6 +1,8 @@
 { config, lib, ... }:
 {
-  boot = lib.mkIf config.system.desktop.enable {
+  options.system.fancyboot.enable = lib.mkEnableOption "Enable Plymouth";
+
+  config.boot = lib.mkIf config.system.desktop.enable {
     plymouth.enable = true;
     loader.timeout = lib.mkForce 0;
     consoleLogLevel = lib.mkForce 0;

modules/system/devices/video/default.nix

@@ -7,7 +7,7 @@
 
   hardware.graphics = {
     enable = config.system.desktop.enable;
-    enable32Bit = true;
+    enable32Bit = if config.nixpkgs.hostPlatform == "x86_64-linux" then true else false;
     extraPackages = with pkgs; [
       vulkan-loader
       vulkan-validation-layers