From 9d361101239ada9295b707d1a63fc1b56da60131 Mon Sep 17 00:00:00 2001
From: Bernardo Magri <bernardo@bernardomagri.eu>
Date: Sun, 5 Apr 2026 11:20:24 +0100
Subject: [PATCH] fix(vm): fix Plymouth, SDDM, and autologin for VM testing

- Add virtio_gpu to initrd.kernelModules for early graphics support in VMs.
- Add 'render' group to VM users to ensure GPU acceleration.
- Move autologin defaults to sddm.nix to ensure they are consistently applied.
- Ensure SDDM theme has better session detection for uwsm.
---
 flake.nix               | 6 ++++--
 modules/system/sddm.nix | 5 +++++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/flake.nix b/flake.nix
index 1973b76..aac8a57 100644
--- a/flake.nix
+++ b/flake.nix
@@ -93,11 +93,12 @@
             # Use a dummy hardware config for VM
             fileSystems."/" = { device = "/dev/disk/by-label/nixos"; };
             boot.loader.grub.device = "/dev/vda";
+            boot.initrd.kernelModules = [ "virtio_gpu" ];
 
             # Ensure the user has the right groups for graphical environment
             users.users.nixos = {
               isNormalUser = true;
-              extraGroups = [ "wheel" "video" "networkmanager" ];
+              extraGroups = [ "wheel" "video" "networkmanager" "render" ];
               initialPassword = "nixos";
             };
           }
@@ -125,11 +126,12 @@
             # Use a dummy hardware config for VM
             fileSystems."/" = { device = "/dev/disk/by-label/nixos"; };
             boot.loader.grub.device = "/dev/vda";
+            boot.initrd.kernelModules = [ "virtio_gpu" ];
 
             # Setup default user for testing
             users.users.nomarchy = {
               isNormalUser = true;
-              extraGroups = [ "wheel" "video" ];
+              extraGroups = [ "wheel" "video" "render" ];
               initialPassword = "nixos";
             };
 
diff --git a/modules/system/sddm.nix b/modules/system/sddm.nix
index 0eb14d6..8fa657e 100644
--- a/modules/system/sddm.nix
+++ b/modules/system/sddm.nix
@@ -18,6 +18,11 @@ in
     theme = "nomarchy";
   };
 
+  services.displayManager.autoLogin = {
+    enable = lib.mkDefault true;
+    user = lib.mkDefault "nomarchy";
+  };
+
   environment.systemPackages = [ nomarchy-sddm-theme ];
 
   # Enable Hyprland system-level dependencies