Setup room cleaning automation

machines/pendulum/automation.nix

@@ -0,0 +1,36 @@
+{ config, lib, pkgs, ... }:
+let
+  path = with pkgs; [ jq postgresql_15 matrix-synapse-tools.synadm ];
+  environment = {
+    HOME = "/home/nathan";
+    XDG_CONFIG_DIRS =
+      "/etc/xdg:/home/nathan/.nix-profile/etc/xdg:/etc/profiles/per-user/nathan/etc/xdg:/nix/var/nix/profiles/default/etc/xdg:/run/current-system/sw/etc/xdg";
+    XDG_CONFIG_HOME = "/home/nathan/.config";
+  };
+  synapse-script = { name, script, schedule }: {
+    systemd.services."synapse-script-${name}" = {
+      inherit environment;
+      inherit path;
+      inherit script;
+      serviceConfig = {
+        Type = "oneshot";
+        User = "nathan";
+        Group = "users";
+      };
+    };
+    systemd.timers."synapse-script-${name}" = {
+      wantedBy = [ "timers.target" ];
+      partOf = [ "synapse-script-${name}.service" ];
+      timerConfig = {
+        OnCalendar = schedule;
+        Unit = "synapse-script-${name}.service";
+      };
+    };
+  };
+in lib.mkMerge [
+  (synapse-script {
+    name = "clean-vacant-rooms";
+    schedule = "23:00";
+    script = builtins.readFile ../../scripts/matrix/clean-old-rooms.sh;
+  })
+]

machines/pendulum/configuration.nix

@@ -1,7 +1,7 @@
 { config, lib, pkgs, inputs, ... }:
 
 {
-  imports = [ ./matrix.nix ];
+  imports = [ ./matrix.nix ./automation.nix ];
   # Sops setup for this machine
   sops.secrets = {
     "borg-ssh-key" = {