all: direct wireguard connections over local network

hosts/shared/wireguard.nix

@@ -1,10 +1,30 @@
-_: {
+{ config, lib, ... }:
-  nodeconfig.wireguard = {
+let
+  hostName = lib.strings.toLower config.networking.hostName;
+  mkPeer = endpoint: publicKey: ip: {
+    inherit endpoint publicKey;
+    allowedIPs = [ ip ];
+  };
+  peer-rico0 = mkPeer "192.168.1.10:51830" "9mfgKUM6hXllEUunvI8szlni9OFpKSbaLVZRAhAh51Q=" "10.10.10.10";
+  peer-rico1 = mkPeer "192.168.1.11:51831" "lFtIm7CX3gcHMAu673ptRzNDQh5QEa7FbzlHSQerRg0=" "10.10.10.11";
+  peer-rico2 = mkPeer "192.168.1.12:51832" "FyFlOHfAprr474cJCXKRvgsU6o22xaQ8gzs1563AQnI=" "10.10.10.12";
+  peer-wynne = mkPeer "192.168.1.13:51833" "re9z2AAKGaJrEn5Q+xp7XnZn4x4+GoJPLZScaXrnMC0=" "10.10.10.13";
+  peer-layne = mkPeer "192.168.1.14:51834" "qhthtzB7vTGRfS1RGyP7RJ+BZLKd/BNxhaTJvAlYuyo=" "10.10.10.14";
+  selectPeer = host: peer: if hostName == host then [ ] else [ peer ];
   interface-name = "Homelab";
+
+in
+{
+  nodeconfig.wireguard = {
+    inherit interface-name;
     endpoint = "165.232.180.97:51821";
     endpoint-publickey = "NNw/iDMCTq8mpHncrecEh4UlvtINX/UUDtCJf2ToFR4=";
-    allowed-ips = [
+    allowed-ips = if hostName == "skipper" then [ "10.10.10.0/24" ] else [ "10.10.10.1" "10.10.10.2" "10.10.10.3" ];
-      "10.10.10.0/24"
-    ];
   };
+  networking.wg-quick.interfaces.${interface-name}.peers = if hostName == "skipper" then [ ] else
+  ((selectPeer "rico0" peer-rico0)
+    ++ (selectPeer "rico1" peer-rico1)
+    ++ (selectPeer "rico2" peer-rico2)
+    ++ (selectPeer "wynne" peer-wynne)
+    ++ (selectPeer "layne" peer-layne));
 }