smallest change

modules/home/apps/mail/aerc/default.nix

@@ -0,0 +1,37 @@
+{
+  options,
+  config,
+  lib,
+  ...
+}:
+with lib;
+with lib.custom; let
+  cfg = config.apps.mail.aerc;
+in {
+  options.apps.mail.aerc = with types; {
+    enable = mkBoolOpt false "Enable Aerc Mail Client";
+  };
+
+  config = mkIf cfg.enable {
+    programs.aerc = {
+      enable = false;
+      package = nixos-stable.aerc;
+      extraConfig = {
+        general = {
+          pgp-provider = "gpg";
+        };
+        filters = {
+          "text/plain" = "colorize";
+          "text/calendar" = "calendar";
+
+          "message/delivery-status" = "colorize";
+          "message/rfc822" = " colorize";
+          "text/html" = "pandoc -f html -t plain | colorize";
+        };
+        hooks = {
+          "mail-received" = "notify-send \"[$AERC_ACCOUNT/$AERC_FOLDER] New mail from $AERC_FROM_NAME\" \"$AERC_SUBJECT\"";
+        };
+      };
+    };
+  };
+}