flake.nix

@@ -96,12 +96,17 @@
           base = mkNixOsBase {
             inherit system pkgs;
             hostname = "catboy-cafe";
+            use-efi = true;
           };
           graphical = mkNixOsGraphical {
             inherit pkgs;
             background = "pan-wire-3.png";
           };
-          networking = mkNixOsNetworking { inherit pkgs; };
+          networking = mkNixOsNetworking {
+            inherit pkgs;
+            eth-interface = "enp0s31f6";
+            static-ip = "192.168.0.199";
+          };
 
           coral =
             let
@@ -131,8 +136,7 @@
           nixpkgs.lib.nixosSystem {
             inherit system;
             modules = [
-              ./nixos/machines/catboy-cafe/hardware.nix
-              ./nixos/machines/catboy-cafe/boot.nix
+              ./nixos/hardware/catboy-cafe.nix
               base
               graphical
               networking

nixos/base.nix

@@ -1,5 +1,7 @@
 {
   system, pkgs, nixpkgs-flake, hostname,
+  use-efi ? false, efi-mountpoint ? "/boot",
+  use-grub ? false, grub-device ? "/dev/sda",
 }:
 {
   nixpkgs.config.allowUnfree = true; # lol
@@ -27,6 +29,17 @@
 
   networking.hostName = hostname;
 
+  boot.loader = if use-efi
+    then {
+      systemd-boot.enable = true;
+      efi.canTouchEfiVariables = true;
+      efi.efiSysMountPoint = efi-mountpoint;
+    } else if use-grub then {
+      grub.enable = true;
+      grub.devce = grub-device;
+    } else throw "Please use either use-efi or use-grub = true";
+
+
   time.timeZone = "Europe/Stockholm";
 
   services.logind.lidSwitch = "ignore";

nixos/machines/catboy-cafe/boot.nix

@@ -1,7 +0,0 @@
-{...}: {
-  boot.loader = {
-    systemd-boot.enable = true;
-    efi.canTouchEfiVariables = true;
-    efi.efiSysMountPoint = "/boot";
-  };
-}

nixos/networking.nix

@@ -1,13 +1,21 @@
 {
   pkgs,
-  use-iwd ? false,
+  eth-interface ? "eth0",
+  static-ip ? false, # false, or IPv4 address as string
+  default-gateway ? "192.168.1.1",
 }:
+  let static-ip-conf = if static-ip != false then {
+    networking.defaultGateway = { address = default-gateway; interface = eth-interface; };
+    networking.useDHCP = false;
+    networking.interfaces.${eth-interface}.ipv4.addresses = [ {
+      address = static-ip;
+      prefixLength = 24;
+    } ];
+    networking.networkmanager.unmanaged = [eth-interface];
+  } else {};
+in pkgs.lib.attrsets.recursiveUpdate static-ip-conf
 {
-  networking.networkmanager = {
-    enable = true;
-    dhcp = "dhcpcd";
-    wifi.backend = if use-iwd then "iwd" else "wpa_supplicant";
-  };
+  networking.networkmanager.enable = true;
   networking.nameservers = [ "8.8.8.8" ];
   networking.resolvconf.enable = true;
   networking.resolvconf.dnsExtensionMechanism = false; # edns seems to be fucky with this enabled