first commit

hosts/test-kvm/default.nix

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+{
+  pkgs,
+  username,
+  hostname,
+  modulesPath,
+  inputs,
+  ...
+}:
+let
+in
+{
+  imports = builtins.trace "${inputs.mysecrets}" [
+    (modulesPath + "/installer/scan/not-detected.nix")
+    ./disk-config.nix
+    ./hardware-configuration.nix
+    ../../modules/core
+    ../../modules/optionnal/hosts/${hostname}.nix
+  ];
+
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+
+  time.timeZone = "Europe/Paris";
+
+  nix = {
+    settings = {
+      ## Enable flakes
+      experimental-features = [
+        "nix-command"
+        "flakes"
+      ];
+      ## Users trusted to use flake command
+      trusted-users = [
+        "root"
+        "${username}"
+      ];
+    };
+  };
+
+  services.openssh.enable = true;
+
+  networking.hostName = "${hostname}";
+
+  system.stateVersion = "25.11";
+}

hosts/test-kvm/disk-config.nix

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+{
+  ...
+}:
+{
+  disko.devices = {
+    disk = {
+      main = {
+        type = "disk";
+        device = "/dev/vda";
+        content = {
+          type = "gpt";
+          partitions = {
+            ESP = {
+              size = "512M";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+              };
+            };
+            root = {
+              size = "100%";
+              type = "8300";
+              content = {
+                type = "filesystem";
+                format = "btrfs";
+                mountpoint = "/";
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+}

hosts/test-kvm/hardware-configuration.nix

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+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [
+    (modulesPath + "/profiles/qemu-guest.nix")
+  ];
+
+  boot.initrd.availableKernelModules = [
+    "ahci"
+    "xhci_pci"
+    "virtio_pci"
+    "sr_mod"
+    "virtio_blk"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}