feat(capytal,chat): discord bridge for the matrix server

capytal/chat.nix

@@ -25,6 +25,49 @@
     };
   };
 
+  services.mautrix-discord = let
+    cfg = config.services.mautrix-discord;
+    continuwuity = config.services.matrix-continuwuity.settings.global;
+  in {
+    enable = true;
+    settings = {
+      homeserver = {
+        address = "http://localhost:${toString
+          (builtins.elemAt continuwuity.port 0)}";
+        domain = continuwuity.server_name;
+      };
+      appservice = rec {
+        address = "http://localhost:${toString port}";
+        hostname = "0.0.0.0";
+        port = 9402;
+
+        database = {
+          type = "sqlite3";
+          uri = "file:${cfg.dataDir}/mautrix-discord.db?_txlock=immediate";
+          max_open_conns = 20;
+          max_idle_conns = 2;
+          max_conn_idle_time = null;
+          max_conn_lifetime = null;
+        };
+        id = "discord";
+        bot = {
+          username = "discordbot";
+          displayname = "Discord bridge bot";
+          avatar = "mxc://maunium.net/nIdEykemnwdisvHbpxflpDlC";
+        };
+        ephemeral_events = true;
+        async_transactions = false;
+      };
+      bridge = {
+        permissions = {
+          "*" = "relay";
+          "${continuwuity.server_name}" = "user";
+          "${continuwuity.well_known.support_mxid}" = "admin";
+        };
+      };
+    };
+  };
+
   services.caddy.virtualHosts = {
     ":${toString (config.services.capytalcc.web.port + 1)}".extraConfig = ''
       # Matrix configuration ---------------------------------------------------
@@ -64,4 +107,5 @@
     '';
   };
 
+  nixpkgs.config.permittedInsecurePackages = ["olm-3.2.16"];
 }