feat: add new host capella for game server hosting

hosts/capella/default.nix

@@ -0,0 +1,32 @@
+{
+  modulesPath,
+  inputs,
+  ...
+}: {
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+    (modulesPath + "/profiles/qemu-guest.nix")
+    inputs.disko.nixosModules.default
+    (import ./disko.nix {device = "/dev/sda";})
+
+    ../common
+  ];
+
+  nixpkgs.hostPlatform = "x86_64-linux";
+
+  networking = {
+    hostName = "capella";
+    firewall.enable = false;
+  };
+
+  boot.loader.grub = {
+    efiSupport = true;
+    efiInstallAsRemovable = true;
+  };
+
+  environment.persistence."/persist" = {
+    enable = false;
+  };
+
+  system.stateVersion = "24.11";
+}

hosts/capella/disko.nix

@@ -0,0 +1,54 @@
+{device ? throw "Set this to the disk device, e.g. /dev/nvme0n1", ...}: {
+  disko.devices = {
+    disk.primary = {
+      inherit device;
+      type = "disk";
+      content = {
+        type = "gpt";
+        partitions = {
+          boot = {
+            name = "boot";
+            size = "1M";
+            type = "EF02";
+          };
+          esp = {
+            name = "ESP";
+            size = "500M";
+            type = "EF00";
+            content = {
+              type = "filesystem";
+              format = "vfat";
+              mountpoint = "/boot";
+            };
+          };
+          root = {
+            name = "root";
+            size = "100%";
+            content = {
+              type = "lvm_pv";
+              vg = "pool";
+            };
+          };
+        };
+      };
+    };
+    lvm_vg = {
+      pool = {
+        type = "lvm_vg";
+        lvs = {
+          root = {
+            size = "100%FREE";
+            content = {
+              type = "filesystem";
+              format = "ext4";
+              mountpoint = "/";
+              mountOptions = [
+                "defaults"
+              ];
+            };
+          };
+        };
+      };
+    };
+  };
+}

hosts/capella/home.nix

@@ -0,0 +1,7 @@
+{...}: {
+  imports = [
+    ../common/home.nix
+  ];
+
+  home.stateVersion = "24.11";
+}