diff --git a/hosts/yodaHedgehog/host-specific.nix b/hosts/yodaHedgehog/host-specific.nix
index a86e085..7f6e889 100644
--- a/hosts/yodaHedgehog/host-specific.nix
+++ b/hosts/yodaHedgehog/host-specific.nix
@@ -127,6 +127,16 @@ in
         sleep 60s
       done
 
+      # Wait until no nix garbage collection service is running.
+      while :; do
+        running_services="$(systemctl list-units --type=service --plain --quiet | awk '{ print $1 }')"
+        if ! printf '%s' "''${running_services}" | grep '^nix-gc.service$'; then
+          break;
+        fi
+        printf '%s\n' 'Delaying suspend due to running nix garbage collection service.'
+        sleep 60s
+      done
+
       # Send filtered journal by email.
       systemctl start journalwatch.service ||:
       # Send notification by email.
diff --git a/modules/local-llm.nix b/modules/local-llm.nix
index 6f3d388..ee7c63a 100644
--- a/modules/local-llm.nix
+++ b/modules/local-llm.nix
@@ -12,6 +12,7 @@ in
     #  # https://ollama.com/library/deepseek-r1
     #  "deepseek-r1:32b"
     #  "deepseek-r1:14b"
+    #  "deepseek-r1:7b"
     #];
   };
 
@@ -36,7 +37,18 @@ in
   #
   # https://docs.openwebui.com/getting-started/quick-start
   # Admin Creation: The first account created on Open WebUI gains Administrator privileges, controlling user management and system settings.
-#  services.open-webui.enable = true;
+  #
+  #services.open-webui = {
+    #enable = true;
+    #package = pkgs.unstable.open-webui; # TODO back to stable nixpkgs
+    #port = 8080;
+
+    # Share via LAN
+    #
+    # Temporarily open firewall
+    #   sudo nixos-firewall-tool open tcp 8080 && ip addr | grep 192
+    #host = "0.0.0.0"; # Also listen to connections from other hosts
+  #};
 
   # Web-UI
 #  services.nextjs-ollama-llm-ui = {