1 files changed, 59 insertions, 0 deletions
diff --git a/modules/nixos/matrix/element.nix b/modules/nixos/matrix/element.nix
new file mode 100644
index 0000000..3d47800
--- /dev/null
+++ b/modules/nixos/matrix/element.nix
@@ -0,0 +1,59 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.matrix.element;
+in {
+  options.nixfiles.modules.matrix.element = {
+    enable = mkEnableOption "Element, a Matrix web interface";
+
+    domain = mkOption {
+      description = "Domain name sans protocol scheme.";
+      type = with types; nullOr str;
+      default = "element.${config.networking.domain}";
+    };
+
+    homeserver = mkOption {
+      description = "Default Matrix homeserver.";
+      type = with types; str;
+      default = my.domain.azahi;
+    };
+  };
+
+  config = mkIf cfg.enable {
+    assertions = [
+      {
+        assertion = with config.nixfiles.modules.matrix;
+          (synapse.enable || dendrite.enable) && !(!synapse.enable && !dendrite.enable);
+        message = "Synapse or Dendrite must be enabled";
+      }
+    ];
+
+    nixfiles.modules.nginx = with cfg; {
+      enable = true;
+      virtualHosts.${domain}.locations."/".root = pkgs.element-web.override {
+        conf = {
+          default_server_config."m.homeserver" = {
+            base_url = "https://${homeserver}";
+            server_name = homeserver;
+          };
+          disable_custom_urls = true;
+          disable_guests = true;
+          disable_login_language_selector = true;
+          disable_3pid_login = true;
+          brand = homeserver;
+          branding.authFooterLinks = [
+            {
+              text = "Hosted on NixOS";
+              url = "https://nixos.org";
+            }
+          ];
+          default_theme = "dark";
+        };
+      };
+    };
+  };
+}