add oracle-cloud machine conf

machines/Oracle-Cloud/default.nix

@@ -0,0 +1,38 @@
+{ inputs, lib, ... }: {
+  imports = [
+    ./hardware-configuration.nix
+    inputs.self.nixosRoles.desktop
+  ];
+
+  deviceSpecific.devInfo = {
+    cpu = {
+      arch = "aarch64";
+      vendor = "broadcom";
+      clock = 2800;
+      cores = 2;
+    };
+    drive = {
+      type = "ssd";
+      speed = 1000;
+      size = 100;
+    };
+    gpu = {
+      vendor = "other";
+    };
+    bigScreen = false;
+    ram = 12;
+  };
+  deviceSpecific.isHost = false;
+  deviceSpecific.isShared = false;
+  deviceSpecific.isGaming = false;
+  deviceSpecific.enableVirtualisation = false;
+  deviceSpecific.wireguard.enable = false;
+
+  boot.cleanTmpDir = true;
+  networking.hostName = "matrix-vm-instance";
+  networking.firewall.allowPing = true;
+  services.openssh.enable = true;
+  users.users.root.openssh.authorizedKeys.keys = [
+    "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC1OdiD3T30dTTVtwDjiVEQ+Dd9P92/4rI60x1xYtr6P75UYZF7eIO6FrxH8FAeSH6N10YsdTK1NPRDj5bsbLDB7d4D4YewPw+tnl3Qnp/04k+/+gpSFhVyUwKWvSTgU34NZFiwdHLuefYkHdAmDBhUhWC+28DyWSPn2LLTHhGRBOaNG39ur/1vaIuJb00vbzA/HWQmIYIByd51gjQkgC+SxIlYb13Q/L6SqHCZ8RUzJyS9bGM9Imw5T7V7SVC2FRjOt6NUm8AVVw06yRgtjXipEYA9GE+Rp69+MNmKr2OxR//KWyQb/SCfQyIWrBn0ee266XukOFuC4bpp50TjTEXx oracle_cloud"
+  ];
+}

machines/Oracle-Cloud/hardware-configuration.nix

@@ -0,0 +1,12 @@
+{ modulesPath, ... }:
+{
+  imports = [ (modulesPath + "/profiles/qemu-guest.nix") ];
+  boot.loader.grub = {
+    efiSupport = true;
+    efiInstallAsRemovable = true;
+    device = "nodev";
+  };
+  fileSystems."/boot" = { device = "/dev/disk/by-uuid/C8C5-C634"; fsType = "vfat"; };
+  boot.initrd.kernelModules = [ "nvme" ];
+  fileSystems."/" = { device = "/dev/sda3"; fsType = "xfs"; };
+}

machines/Oracle-Cloud/system

@@ -0,0 +1 @@
+aarch64-linux