port to flakes

nixos/modules/element.nix

@@ -0,0 +1,36 @@
+{ config, pkgs, lib, ... }:
+let
+  cfg = config.dadada.element;
+in
+{
+  options.dadada.element = {
+    enable = lib.mkEnableOption "Enable element webapp";
+  };
+  config = lib.mkIf cfg.enable {
+    services.nginx.virtualHosts."element.${config.networking.domain}" = {
+      enableACME = true;
+      forceSSL = true;
+      serverAliases = [
+        "element.${config.networking.domain}"
+      ];
+
+      root = pkgs.element-web.override {
+        conf = {
+          default_server_config."m.homeserver" = {
+            "base_url" = "https://matrix.stratum0.org/";
+            "server_name" = "Stratum 0";
+          };
+        };
+      };
+
+      locations = {
+        "/robots.txt" = {
+          extraConfig = ''
+            add_header Content-Type text/plain;
+            return 200 "User-agent: *\nDisallow: /\n";
+          '';
+        };
+      };
+    };
+  };
+}