Set up Matrix and Element

modules/communication.nix

@@ -0,0 +1,44 @@
+{ config, lib, pkgs, ... }:
+
+{
+  # Matrix server configuration
+  services.matrix-synapse = {
+    enable = true;
+    server_name = "coolneng.duckdns.org";
+    listeners = [{
+      port = 8008;
+      tls = false;
+      resources = [{
+        compress = true;
+        names = [ "client" "webclient" "federation" ];
+      }];
+      x_forwarded = true;
+    }];
+  };
+
+  # Telegram bridge for Matrix
+  services.mautrix-telegram = {
+    enable = false;
+    environmentFile = /var/lib/mautrix-telegram/telegram.env;
+    settings = {
+      homeserver = {
+        address = "https://matrix.coolneng.duckdns.org";
+        domain = "coolneng.duckdns.org";
+      };
+      appservice = {
+        provisioning.enabled = false;
+        id = "telegram";
+        public = {
+          enabled = true;
+          prefix = "/public";
+          external = "https://matrix.coolneng.duckdns.org/public";
+        };
+      };
+      bridge = {
+        relaybot.authless_portals = false;
+        permissions = { "@admin:matrix.coolneng.duckdns.org" = "admin"; };
+      };
+    };
+    serviceDependencies = [ "matrix-synapse.service" ];
+  };
+}