Trying to compiling everything from source, it works, but isn't worth it

hardware/x1-extreme-gen4.nix

@@ -1,4 +1,4 @@
-{ config, ... }:
+{ config, pkgs, ... }:
 
 {
   # Optimisation
@@ -9,21 +9,67 @@
   #   system = "x86_64-linux";
   # };
 
-  nix.settings.system-features = [ "gccarch-tigerlake" "nixos-test" "benchmark" "big-parallel" "kvm" ];
+  # nix.settings.system-features = [ "gccarch-tigerlake" "nixos-test" "benchmark" "big-parallel" "kvm" ];
 
-  # Increasing the limit of files to help with compilation
+  # # Increasing the limit of files to help with compilation
-  security.pam.loginLimits = [{
+  # security.pam.loginLimits = [{
-    domain = "*";
+  #   domain = "*";
-    type = "soft";
+  #   type = "soft";
-    item = "nofile";
+  #   item = "nofile";
-    value = "8192";
+  #   value = "8192";
-  }];
+  # }];
 
-  # Disabling failing test
+  # # Resources Limit
+  # nix.settings = {
+  #   max-jobs = 7;
+  #   cores = 2;
+  # };
+
+  # # OOM configuration
+  # systemd = {
+  #   # Create a separate slice for nix-daemon that is
+  #   # memory-managed by the userspace systemd-oomd killer
+  #   slices."nix-daemon".sliceConfig = {
+  #     ManagedOOMMemoryPressure = "kill";
+  #     ManagedOOMMemoryPressureLimit = "50%";
+  #   };
+  #   services."nix-daemon".serviceConfig.Slice = "nix-daemon.slice";
+
+  #   # If a kernel-level OOM event does occur anyway,
+  #   # strongly prefer killing nix-daemon child processes
+  #   services."nix-daemon".serviceConfig.OOMScoreAdjust = 1000;
+
+  #   services."nix-daemon".serviceConfig.MemoryHigh = "16G";
+  #   services."nix-daemon".serviceConfig.MemoryMax = "20G";
+  # };
+
+  # # Disabling failing test
   # nixpkgs.overlays = [ (final: prev: {
   #   orc = prev.orc.overrideAttrs (_: { doCheck = false; });
+  #   gsl = prev.gsl.overrideAttrs (_: { doCheck = false; });
+  #   fprintd = prev.fprintd.overrideAttrs (super: {
+  #     # doCheck = false;
+  #     # buildInputs = super.buildInputs or [ ] ++ (with pkgs; [ libpam-wrapper (pkgs.python3.withPackages (python-pkgs: [ python-pkgs.pycairo python-pkgs.dbus-python python-pkgs.python-dbusmock ])) ]);
+  #     mesonCheckFlags = [
+  #       # PAM related checks are timing out
+  #       "--no-suite" "fprintd"
+  #     ];
+  #   });
+  #   # haskellPackages.crypton = pkgs.haskell.lib.overrideCabal prev.crypton (_: { doCheck = false; });
+  #   # haskellPackages.cryptonite = pkgs.haskell.lib.overrideCabal prev.cryptonite (_: { doCheck = false; });
   # }) ];
 
+  # nixpkgs.config.packageOverrides = pkgs: {
+  #   haskellPackages = pkgs.haskellPackages.override {
+  #     overrides = hsSelf: hsSuper: {
+  #       crypton = pkgs.haskell.lib.overrideCabal hsSuper.crypton (_: { doCheck = false; });
+  #       cryptonite = pkgs.haskell.lib.overrideCabal hsSuper.cryptonite (_: { doCheck = false; });
+  #       crypton-x509-validation = pkgs.haskell.lib.overrideCabal hsSuper.crypton-x509-validation (oa: { doCheck = false; });
+  #       tls = pkgs.haskell.lib.overrideCabal hsSuper.tls (oa: { doCheck = false; });
+  #     };
+  #   };
+  # };
+
   # NVidia
   
   services.xserver.videoDrivers = [ "nvidia" ];
@@ -40,15 +86,25 @@
 
     # Use the open source version of the kernel module
     # Only available on driver 515.43.04+
-    open = true;
+    open = false;
 
     # Enable the nvidia settings menu
     nvidiaSettings = true;
 
     # Optionally, you may need to select the appropriate driver version for your specific GPU
-    package = config.boot.kernelPackages.nvidiaPackages.stable;
+    # package = config.boot.kernelPackages.nvidiaPackages.vulkan_beta;
+
+    prime = {
+      offload = {
+        enable = true;
+        enableOffloadCmd = true;
+      };
+
+      intelBusId = "PCI:0:2:0";
+      nvidiaBusId = "PCI:1:0:0";
+    };
   };
   
   # For containers
-  virtualisation.containers.cdi.dynamic.nvidia.enable = true;
+  hardware.nvidia-container-toolkit.enable = true;
 }

system.nix

@@ -12,6 +12,7 @@
   boot.loader.systemd-boot.configurationLimit = 10;
   boot.loader.efi.canTouchEfiVariables = true;
   boot.plymouth.enable = true;
+  boot.kernelParams = [ "quiet" ];
 
   boot.supportedFilesystems = [ "ntfs" ];
 
@@ -26,6 +27,7 @@
   # Firmware
   services.fwupd.enable = true;
   services.fprintd.enable = true;
+  security.pam.services.gdm-fingerprint.fprintAuth = false;
 
   # Time
   time.timeZone = "Europe/Paris";
@@ -41,7 +43,7 @@
   services.xserver.xkb.layout = "fr";
   services.xserver.xkb.variant = "oss";
 
-  services.xserver.libinput.enable = true;
+  services.libinput.enable = true;
 
   # Printing
   services.printing.enable = true;
@@ -65,10 +67,16 @@
   # Graphics
   services.xserver.enable = true;
   programs.xwayland.enable = true;
+  environment.sessionVariables.NIXOS_OZONE_WL = "1";
 
+  # GNOME
   services.xserver.displayManager.gdm.enable = true;
   services.xserver.desktopManager.gnome.enable = true;
 
+  # KDE
+  # services.desktopManager.plasma6.enable = true;
+  # programs.ssh.askPassword = lib.mkForce "${pkgs.gnome.seahorse}/libexec/seahorse/ssh-askpass";
+
   programs.dconf.enable = true;
 
   services.flatpak.enable = true;
@@ -91,7 +99,8 @@
   documentation.enable = true;
   documentation.man.enable = true;
   documentation.dev.enable = true;
-  documentation.nixos.enable = true;
+  # Fails for some reason
+  documentation.nixos.enable = false;
 
   # Virtualisation
   virtualisation.libvirtd.enable = true;