Clean up config & add comments.

hosts/weebill/default.nix

@@ -0,0 +1,57 @@
+{pkgs, ...}: {
+  # Boot loader.
+  boot = {
+    kernelPackages = pkgs.linuxKernel.packages.linux_rpi4;
+    initrd.availableKernelModules = [
+      "xhci_pci"
+      "usbhid"
+      "usb_storage"
+    ];
+    loader = {
+      grub.enable = false;
+      generic-extlinux-compatible.enable = true;
+    };
+  };
+
+  fileSystems = {
+    # Root filesystem.
+    "/" = {
+      device = "/dev/disk/by-label/NIXOS_SD";
+      fsType = "ext4";
+      options = ["noatime"];
+    };
+
+    # AFP share.
+    "/srv/iMac" = {
+      device = "/dev/disk/by-uuid/48843b25-4d8c-4638-a5f8-fb3901e1165e";
+      fsType = "ext4";
+    };
+  };
+
+  # Enable WebOne HTTP proxy.
+  services.webone.enable = true;
+
+  # Enable Netatalk AFP fileserver.
+  services.netatalk = {
+    enable = true;
+    settings = {
+      Global = {
+        "uam list" = "uams_guest.so";
+      };
+      iMac = {
+        path = "/srv/iMac";
+        browsable = "yes";
+        "read-only" = "yes";
+      };
+    };
+  };
+
+  # Open ports for services.
+  networking.firewall = {
+    allowedUDPPorts = [
+      53 # DHCP server.
+      67 # DHCP server.
+    ];
+    allowedTCPPorts = [8080 548]; # WebOne & Netatalk.
+  };
+}