diff --git a/.editorconfig b/.editorconfig
deleted file mode 100644
index 890d970..0000000
--- a/.editorconfig
+++ /dev/null
@@ -1,23 +0,0 @@
-root = true
-
-[*]
-end_of_line = lf
-insert_final_newline = true
-indent_style = space
-charset = utf-8
-
-[*.nix]
-indent_size = 2
-trim_trailing_whitespace = true
-
-[*.md]
-indent_size = 2
-trim_trailing_whitespace = false
-
-[*.json]
-indent_size = 2
-trim_trailing_whitespace = true
-
-[*.yaml]
-indent_size = 2
-trim_trailing_whitespace = true
diff --git a/config/hosts/audio-hauptraum-kueche/networking.nix b/config/hosts/audio-hauptraum-kueche/networking.nix
index 0118db4..ee01d0b 100644
--- a/config/hosts/audio-hauptraum-kueche/networking.nix
+++ b/config/hosts/audio-hauptraum-kueche/networking.nix
@@ -1,4 +1,4 @@
-{ ... }:
+{ config, pkgs, ... }:
 
 {
   networking = {
@@ -11,9 +11,10 @@
       ];
     };
     defaultGateway = "10.31.210.1";
-    nameservers = [ "10.31.210.1" ];
+    nameservers = [
+      "10.31.210.1"
+    ];
   };
-
   systemd.network.links."10-net0" = {
     matchConfig.MACAddress = "1E:EF:2D:92:81:DA";
     linkConfig.Name = "net0";
diff --git a/config/hosts/audio-hauptraum-tafel/networking.nix b/config/hosts/audio-hauptraum-tafel/networking.nix
index 37185b7..6052909 100644
--- a/config/hosts/audio-hauptraum-tafel/networking.nix
+++ b/config/hosts/audio-hauptraum-tafel/networking.nix
@@ -1,4 +1,4 @@
-{ ... }:
+{ config, pkgs, ... }:
 
 {
   networking = {
@@ -11,9 +11,10 @@
       ];
     };
     defaultGateway = "10.31.210.1";
-    nameservers = [ "10.31.210.1" ];
+    nameservers = [
+      "10.31.210.1"
+    ];
   };
-
   systemd.network.links."10-net0" = {
     matchConfig.MACAddress = "D2:10:33:B1:72:C3";
     linkConfig.Name = "net0";
diff --git a/config/hosts/eh22-wiki/networking.nix b/config/hosts/eh22-wiki/networking.nix
index fba2da9..bddeabf 100644
--- a/config/hosts/eh22-wiki/networking.nix
+++ b/config/hosts/eh22-wiki/networking.nix
@@ -1,19 +1,20 @@
+# Sources for this configuration:
+# - https://nixos.wiki/wiki/Networking
+
 { ... }:
 
 {
-  networking = {
-    interfaces.net0 = {
-      ipv4.addresses = [
-        {
-          address = "172.31.17.159";
-          prefixLength = 25;
-        }
-      ];
-    };
-    defaultGateway = "172.31.17.129";
-    nameservers = [ "212.12.50.158" "192.76.134.90" ];
-    search = [ "hamburg.ccc.de" ];
+  networking.interfaces.net0 = {
+    ipv4.addresses = [
+      {
+        address = "172.31.17.159";
+        prefixLength = 25;
+      }
+    ];
   };
+  networking.defaultGateway = "172.31.17.129";
+  networking.nameservers = [ "212.12.50.158" "192.76.134.90" ];
+  networking.search = [ "hamburg.ccc.de" ];
 
   systemd.network.links."10-net0" = {
     matchConfig.MACAddress = "BC:24:11:37:F0:AB";
diff --git a/config/hosts/esphome/networking.nix b/config/hosts/esphome/networking.nix
index a2c64d3..6f65f93 100644
--- a/config/hosts/esphome/networking.nix
+++ b/config/hosts/esphome/networking.nix
@@ -1,26 +1,27 @@
 { ... }:
 
 {
-  networking = {
-    interfaces.net0 = {
-      ipv4.addresses = [
-        {
-          address = "10.31.208.24";
-          prefixLength = 23;
-        }
-      ];
-      ipv6.addresses = [
-        {
-          address = "2a07:c480:0:1d0::66";
-          prefixLength = 64;
-        }
-      ];
-    };
-    defaultGateway = "10.31.208.1";
-    defaultGateway6 = "2a07:c480:0:1d0::1";
-    nameservers = [ "10.31.208.1" "2a07:c480:0:1d0::1" ];
-    search = [ "z9.ccchh.net" ];
+  networking.interfaces.net0 = {
+    ipv4.addresses = [
+      {
+        address = "10.31.208.24";
+        prefixLength = 23;
+      }
+    ];
   };
+  networking.defaultGateway = "10.31.208.1";
+  networking.nameservers = [ "10.31.208.1" ];
+  networking.search = [ "z9.ccchh.net" ];
+
+  networking.interfaces.net0 = {
+    ipv6.addresses = [
+      {
+        address = "2a07:c480:0:1d0::66";
+        prefixLength = 64;
+      }
+    ];
+  };
+  networking.defaultGateway6 = "2a07:c480:0:1d0::1";
 
   systemd.network.links."10-net0" = {
     matchConfig.MACAddress = "7E:3C:F0:77:8A:F4";
diff --git a/config/hosts/forgejo-actions-runner/networking.nix b/config/hosts/forgejo-actions-runner/networking.nix
index 8990224..7c5e178 100644
--- a/config/hosts/forgejo-actions-runner/networking.nix
+++ b/config/hosts/forgejo-actions-runner/networking.nix
@@ -1,19 +1,17 @@
-{ ... }:
+{ config, pkgs, ... }:
 
 {
-  networking = {
-    interfaces.net0 = {
-      ipv4.addresses = [
-        {
-          address = "172.31.17.155";
-          prefixLength = 25;
-        }
-      ];
-    };
-    defaultGateway = "172.31.17.129";
-    nameservers = [ "212.12.50.158" "192.76.134.90" ];
-    search = [ "hamburg.ccc.de" ];
+  networking.interfaces.net0 = {
+    ipv4.addresses = [
+      {
+        address = "172.31.17.155";
+        prefixLength = 25;
+      }
+    ];
   };
+  networking.defaultGateway = "172.31.17.129";
+  networking.nameservers = [ "212.12.50.158" "192.76.134.90" ];
+  networking.search = [ "hamburg.ccc.de" ];
 
   systemd.network.links."10-net0" = {
     matchConfig.MACAddress = "1E:E0:4E:D0:DA:BE";
diff --git a/config/hosts/git/networking.nix b/config/hosts/git/networking.nix
index 688fff3..b73b953 100644
--- a/config/hosts/git/networking.nix
+++ b/config/hosts/git/networking.nix
@@ -4,26 +4,27 @@
 { ... }:
 
 {
-  networking = {
-    interfaces.net0 = {
-      ipv4.addresses = [
-        {
-          address = "212.12.51.136";
-          prefixLength = 28;
-        }
-      ];
-      ipv6.addresses = [
-        {
-          address = "2a00:14b0:f000:23:51:136::1";
-          prefixLength = 64;
-        }
-      ];
-    };
-    defaultGateway = "212.12.51.129";
-    defaultGateway6 = "2a00:14b0:f000:23::1";
-    nameservers = [ "212.12.50.158" "192.76.134.90" ];
-    search = [ "hamburg.ccc.de" ];
+  networking.interfaces.net0 = {
+    ipv4.addresses = [
+      {
+        address = "212.12.51.136";
+        prefixLength = 28;
+      }
+    ];
   };
+  networking.defaultGateway = "212.12.51.129";
+  networking.nameservers = [ "212.12.50.158" "192.76.134.90" ];
+  networking.search = [ "hamburg.ccc.de" ];
+
+  networking.interfaces.net0 = {
+    ipv6.addresses = [
+      {
+        address = "2a00:14b0:f000:23:51:136::1";
+        prefixLength = 64;
+      }
+    ];
+  };
+  networking.defaultGateway6 = "2a00:14b0:f000:23::1";
 
   systemd.network.links."10-net0" = {
     matchConfig.MACAddress = "92:7B:E6:12:A4:FA";
diff --git a/config/hosts/matrix/networking.nix b/config/hosts/matrix/networking.nix
index 5fa1aa1..370bbbd 100644
--- a/config/hosts/matrix/networking.nix
+++ b/config/hosts/matrix/networking.nix
@@ -1,19 +1,17 @@
 { ... }:
 
 {
-  networking = {
-    interfaces.net0 = {
-      ipv4.addresses = [
-        {
-          address = "172.31.17.150";
-          prefixLength = 25;
-        }
-      ];
-    };
-    defaultGateway = "172.31.17.129";
-    nameservers = [ "212.12.50.158" "192.76.134.90" ];
-    search = [ "hamburg.ccc.de" ];
+  networking.interfaces.net0 = {
+    ipv4.addresses = [
+      {
+        address = "172.31.17.150";
+        prefixLength = 25;
+      }
+    ];
   };
+  networking.defaultGateway = "172.31.17.129";
+  networking.nameservers = [ "212.12.50.158" "192.76.134.90" ];
+  networking.search = [ "hamburg.ccc.de" ];
 
   systemd.network.links."10-net0" = {
     matchConfig.MACAddress = "2A:A5:80:C3:8E:32";
diff --git a/config/hosts/mjolnir/networking.nix b/config/hosts/mjolnir/networking.nix
index a441814..04559f7 100644
--- a/config/hosts/mjolnir/networking.nix
+++ b/config/hosts/mjolnir/networking.nix
@@ -1,19 +1,17 @@
 { ... }:
 
 {
-  networking = {
-    interfaces.net0 = {
-      ipv4.addresses = [
-        {
-          address = "172.31.17.161";
-          prefixLength = 25;
-        }
-      ];
-    };
-    defaultGateway = "172.31.17.129";
-    nameservers = [ "212.12.50.158" "192.76.134.90" ];
-    search = [ "hamburg.ccc.de" ];
+  networking.interfaces.net0 = {
+    ipv4.addresses = [
+      {
+        address = "172.31.17.161";
+        prefixLength = 25;
+      }
+    ];
   };
+  networking.defaultGateway = "172.31.17.129";
+  networking.nameservers = [ "212.12.50.158" "192.76.134.90" ];
+  networking.search = [ "hamburg.ccc.de" ];
 
   systemd.network.links."10-net0" = {
     matchConfig.MACAddress = "BC:24:11:C9:F8:C5";
diff --git a/config/hosts/mqtt/networking.nix b/config/hosts/mqtt/networking.nix
index 7a34cbb..5bd6616 100644
--- a/config/hosts/mqtt/networking.nix
+++ b/config/hosts/mqtt/networking.nix
@@ -1,21 +1,20 @@
 { ... }:
 
 {
-  networking = {
-    interfaces.net0 = {
-      ipv4.addresses = [
-        {
-          address = "10.31.208.14";
-          prefixLength = 23;
-        }
-      ];
+    networking = {
+        interfaces.net0 = {
+            ipv4.addresses = [ {
+                address = "10.31.208.14";
+                prefixLength = 23;
+            } ];
+        };
+        defaultGateway = "10.31.208.1";
+        nameservers = [
+            "10.31.210.1"
+        ];
     };
-    defaultGateway = "10.31.208.1";
-    nameservers = [ "10.31.210.1" ];
-  };
-
-  systemd.network.links."10-net0" = {
-    matchConfig.MACAddress = "BC:24:11:48:85:73";
-    linkConfig.Name = "net0";
-  };
-}
+    systemd.network.links."10-net0" = {
+        matchConfig.MACAddress = "BC:24:11:48:85:73";
+        linkConfig.Name = "net0";
+    };
+}
\ No newline at end of file
diff --git a/config/hosts/netbox/networking.nix b/config/hosts/netbox/networking.nix
index a0abcfe..dbfe9a6 100644
--- a/config/hosts/netbox/networking.nix
+++ b/config/hosts/netbox/networking.nix
@@ -1,19 +1,23 @@
-{ ... }:
+# Networking configuration for the host.
+# Sources for this configuration:
+# - https://nixos.org/manual/nixos/stable/#sec-networking
+# - https://nixos.wiki/wiki/Systemd-networkd
+# - https://wiki.archlinux.org/title/Systemd-networkd
+
+{ config, pkgs, ... }:
 
 {
-  networking = {
-    interfaces.net0 = {
-      ipv4.addresses = [
-        {
-          address = "172.31.17.149";
-          prefixLength = 25;
-        }
-      ];
-    };
-    defaultGateway = "172.31.17.129";
-    nameservers = [ "212.12.50.158" "192.76.134.90" ];
-    search = [ "hamburg.ccc.de" ];
+  networking.interfaces.net0 = {
+    ipv4.addresses = [
+      {
+        address = "172.31.17.149";
+        prefixLength = 25;
+      }
+    ];
   };
+  networking.defaultGateway = "172.31.17.129";
+  networking.nameservers = [ "212.12.50.158" "192.76.134.90" ];
+  networking.search = [ "hamburg.ccc.de" ];
 
   systemd.network.links."10-net0" = {
     matchConfig.MACAddress = "62:ED:44:20:7C:C1";
diff --git a/config/hosts/nix-box-june/networking.nix b/config/hosts/nix-box-june/networking.nix
index 2c1faee..073250b 100644
--- a/config/hosts/nix-box-june/networking.nix
+++ b/config/hosts/nix-box-june/networking.nix
@@ -1,19 +1,19 @@
-{ ... }:
+# Networking configuration for the host.
+
+{ config, pkgs, ... }:
 
 {
-  networking = {
-    interfaces.net0 = {
-      ipv4.addresses = [
-        {
-          address = "172.31.17.158";
-          prefixLength = 25;
-        }
-      ];
-    };
-    defaultGateway = "172.31.17.129";
-    nameservers = [ "212.12.50.158" "192.76.134.90" ];
-    search = [ "hamburg.ccc.de" ];
+  networking.interfaces.net0 = {
+    ipv4.addresses = [
+      {
+        address = "172.31.17.158";
+        prefixLength = 25;
+      }
+    ];
   };
+  networking.defaultGateway = "172.31.17.129";
+  networking.nameservers = [ "212.12.50.158" "192.76.134.90" ];
+  networking.search = [ "hamburg.ccc.de" ];
 
   systemd.network.links."10-net0" = {
     matchConfig.MACAddress = "BC:24:11:6A:33:5F";
diff --git a/config/hosts/ptouch-print-server/networking.nix b/config/hosts/ptouch-print-server/networking.nix
index 83031a1..7c7cb62 100644
--- a/config/hosts/ptouch-print-server/networking.nix
+++ b/config/hosts/ptouch-print-server/networking.nix
@@ -11,7 +11,9 @@
       ];
     };
     defaultGateway = "10.31.208.1";
-    nameservers = [ "10.31.208.1" ];
+    nameservers = [
+      "10.31.208.1"
+    ];
   };
 
   systemd.network.links."10-net0" = {
diff --git a/config/hosts/public-web-static/networking.nix b/config/hosts/public-web-static/networking.nix
index cb22d40..34b36f3 100644
--- a/config/hosts/public-web-static/networking.nix
+++ b/config/hosts/public-web-static/networking.nix
@@ -1,19 +1,17 @@
 { ... }:
 
 {
-  networking = {
-    interfaces.net0 = {
-      ipv4.addresses = [
-        {
-          address = "172.31.17.151";
-          prefixLength = 25;
-        }
-      ];
-    };
-    defaultGateway = "172.31.17.129";
-    nameservers = [ "212.12.50.158" "192.76.134.90" ];
-    search = [ "hamburg.ccc.de" ];
+  networking.interfaces.net0 = {
+    ipv4.addresses = [
+      {
+        address = "172.31.17.151";
+        prefixLength = 25;
+      }
+    ];
   };
+  networking.defaultGateway = "172.31.17.129";
+  networking.nameservers = [ "212.12.50.158" "192.76.134.90" ];
+  networking.search = [ "hamburg.ccc.de" ];
 
   systemd.network.links."10-net0" = {
     matchConfig.MACAddress = "86:72:08:F6:C0:D6";
diff --git a/config/hosts/woodpecker/networking.nix b/config/hosts/woodpecker/networking.nix
index 3301812..17fa56c 100644
--- a/config/hosts/woodpecker/networking.nix
+++ b/config/hosts/woodpecker/networking.nix
@@ -1,19 +1,20 @@
+# Sources for this configuration:
+# - https://nixos.wiki/wiki/Networking
+
 { ... }:
 
 {
-  networking = {
-    interfaces.net0 = {
-      ipv4.addresses = [
-        {
-          address = "172.31.17.160";
-          prefixLength = 25;
-        }
-      ];
-    };
-    defaultGateway = "172.31.17.129";
-    nameservers = [ "212.12.50.158" "192.76.134.90" ];
-    search = [ "hamburg.ccc.de" ];
+  networking.interfaces.net0 = {
+    ipv4.addresses = [
+      {
+        address = "172.31.17.160";
+        prefixLength = 25;
+      }
+    ];
   };
+  networking.defaultGateway = "172.31.17.129";
+  networking.nameservers = [ "212.12.50.158" "192.76.134.90" ];
+  networking.search = [ "hamburg.ccc.de" ];
 
   systemd.network.links."10-net0" = {
     matchConfig.MACAddress = "BC:24:11:5F:A9:B7";
diff --git a/config/hosts/yate/networking.nix b/config/hosts/yate/networking.nix
index a06a019..225edd2 100644
--- a/config/hosts/yate/networking.nix
+++ b/config/hosts/yate/networking.nix
@@ -1,4 +1,4 @@
-{ ... }:
+{ config, pkgs, ... }:
 
 {
   networking = {