diff --git a/CLAUDE.md b/CLAUDE.md
index f70d69a..1579b00 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -12,6 +12,10 @@ This is a NixOS infrastructure repository managing multiple hosts (servers and p
 # Enter development shell (sets up MCP configs)
 nix-shell
 
+# Test configuration before deployment (required before PRs)
+./scripts/test-configuration <hostname>
+./scripts/test-configuration -v <hostname>  # with --show-trace
+
 # Edit encrypted secrets
 nix-shell -p sops --run 'sops hosts/<hostname>/secrets.yaml'
 
@@ -76,6 +80,17 @@ utils/pkgs/<package-name>/
 └── (other files like patches, lock files)
 ```
 
+**IMPORTANT: When modifying a custom package** (patches, version updates, etc.), always test by building the package directly, not just running `test-configuration`. The configuration test only checks that the Nix expression evaluates, but doesn't verify the package actually builds:
+
+```bash
+# Build a custom package directly to verify it works
+nix-build -E 'with import <nixpkgs> { overlays = [ (import ./utils/overlays/packages.nix) ]; config.allowUnfree = true; }; <package-name>'
+```
+
+## Workflow
+
+Run `./scripts/test-configuration <hostname>` to verify NixOS configuration changes build successfully.
+
 ## Conventions
 
 - Nix files: two-space indentation, lower kebab-case naming
diff --git a/hosts/nb/modules/sway/sway.conf b/hosts/nb/modules/sway/sway.conf
index f0976ae..89a190b 100644
--- a/hosts/nb/modules/sway/sway.conf
+++ b/hosts/nb/modules/sway/sway.conf
@@ -334,6 +334,10 @@ input * xkb_layout "de
 input * xkb_options "grp:win_space_toggle"
 input "MANUFACTURER1 Keyboard" xkb_model "pc101"
 
+# notebook
+set $laptop eDP-1
+# bindswitch --reload --locked lid:on output $laptop disable
+# bindswitch --reload lid:off output $laptop enable
 
 # A lock command used in several places
 set $lock_script swaylock
@@ -351,8 +355,8 @@ set $laptop_screen 'eDP-1'
 # Clamshell mode or lock & sleep
 # This is a if/else statement: [ outputs_count == 1 ] && true || false
 # bindswitch --locked lid:on exec '[ $(swaymsg -t get_outputs | grep name | wc -l) == 1 ] && ($sleep) || swaymsg output $laptop_screen disable'
-bindswitch --reload --locked lid:on exec 'swaymsg output $laptop_screen disable'
-bindswitch --reload --locked lid:off output $laptop_screen enable
+bindswitch --locked lid:on exec 'swaymsg output $laptop_screen disable'
+bindswitch --locked lid:off output $laptop_screen enable
 
 # disable xwayland
 #xwayland disable
diff --git a/hosts/nb/modules/sway/waybar.conf b/hosts/nb/modules/sway/waybar.conf
index c43e39f..ea22302 100644
--- a/hosts/nb/modules/sway/waybar.conf
+++ b/hosts/nb/modules/sway/waybar.conf
@@ -95,10 +95,10 @@
   "network": {
       // "interface": "wlp2*", // (Optional) To force the use of this interface
       "format-wifi": "{essid} ({signalStrength}%)  ",
-      "format-ethernet": "{ipaddr}/{cidr} 󰈀",
-      "tooltip-format": "{ifname} via {gwaddr} 󰈀",
-      "format-linked": "{ifname} (No IP) 󰌘",
-      "format-disconnected": "Disconnected 󰌙",
+      "format-ethernet": "{ipaddr}/{cidr} ",
+      "tooltip-format": "{ifname} via {gwaddr} ",
+      "format-linked": "{ifname} (No IP) ",
+      "format-disconnected": "Disconnected ",
       "format-alt": "{ifname}: {ipaddr}/{cidr}"
   },
   "memory": {