From cf577781337db48eda67c4f314d60633acb8df4b Mon Sep 17 00:00:00 2001
From: Charlotte Van Petegem <charlotte@vanpetegem.be>
Date: Mon, 28 Apr 2025 16:53:18 +0200
Subject: [PATCH] Configure matrix to prune rooms with no local users

---
 modules/nixos/services/matrix/default.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/modules/nixos/services/matrix/default.nix b/modules/nixos/services/matrix/default.nix
index c4dc4ffb..982f9d97 100644
--- a/modules/nixos/services/matrix/default.nix
+++ b/modules/nixos/services/matrix/default.nix
@@ -49,6 +49,7 @@
           url_preview_enabled = true;
           enable_metrics = false;
           enable_registration = false;
+          forgotten_room_retention_period = "28d";
           report_stats = false;
           allow_guest_access = false;
           suppress_key_server_warning = true;