♻️ consolidate nix configs

nix/modules/minecraft/proxy.nix

@@ -0,0 +1,32 @@
+_:
+let
+  dest_ip = "100.111.208.75";
+  dest_port = 25565;
+in
+{
+  networking = {
+    firewall = {
+      enable = true;
+      allowedTCPPorts = [ dest_port ];
+    };
+    nat = {
+      enable = true;
+      internalInterfaces = [ "tailscale0" ];
+      externalInterface = "eth0";
+      forwardPorts = [
+        {
+          sourcePort = dest_port;
+          proto = "tcp";
+          destination = "${dest_ip}:${toString dest_port}";
+        }
+      ];
+    };
+  };
+
+  services = {
+    tailscale = {
+      useRoutingFeatures = "server";
+      extraUpFlags = [ "--stateful-filtering=false" ];
+    };
+  };
+}