Update

common/docker/default.nix

@@ -0,0 +1,22 @@
+{
+  # Needed by the Nvidia container wrapper.
+  hardware.graphics.enable32Bit = true;
+
+  virtualisation = {
+    docker = {
+      enable = true;
+      # Set this up to debug issues witht the Docker runtime wrappers
+      # for GPU support. If you don't know what this is about, you
+      # should probably use `hardware.nvidia-container-toolkit.enable
+      # = true;` instead.
+      enableNvidia = true;
+      rootless = {
+        enable = true;
+        # FIXME(ereslibre): this should be done automatically by
+        # NixOS.
+        daemon.settings.features.cdi = true;
+      };
+    };
+  };
+  users.users.ereslibre.extraGroups = ["docker"];
+}

common/podman/default.nix

@@ -12,10 +12,6 @@
   users.users.ereslibre.extraGroups = ["podman"];
   virtualisation = {
     containers.enable = true;
-    podman = {
-      enable = true;
-      dockerCompat = true;
-      dockerSocket.enable = true;
-    };
+    podman.enable = true;
   };
 }

hulk/configuration.nix

@@ -2,6 +2,7 @@
   imports = [
     ./hardware-configuration.nix
     ../common/aliases
+    ../common/docker
     ../common/home-node
     ../common/nixos
     ../common/node

hulk/hardware-configuration.nix

@@ -32,7 +32,6 @@
       sensor-cpu = "sudo ${pkgs.lm_sensors}/bin/sensors -j k10temp-pci-00c3 | ${pkgs.jq}/bin/jq '.\"k10temp-pci-00c3\".Tctl.temp1_input'";
     };
     systemPackages = with pkgs; [
-      linuxPackages.nvidia_x11
       pciutils
     ];
   };
@@ -46,24 +45,15 @@
 
   hardware = {
     nvidia = {
-      modesetting.enable = true;
       nvidiaPersistenced = true;
       open = false;
     };
     graphics.enable = true;
+    nvidia-container-toolkit.enable = true;
   };
 
   nixpkgs.config = {
     cudaSupport = true;
     cudnnSupport = true;
   };
-
-  services.xserver.videoDrivers = ["nvidia"];
-
-  systemd.services.nvidia-control-devices = {
-    wantedBy = ["multi-user.target"];
-    serviceConfig.ExecStart = "${pkgs.linuxPackages.nvidia_x11.bin}/bin/nvidia-smi";
-  };
-
-  hardware.nvidia-container-toolkit.enable = true;
 }