diff --git a/deploy.sh b/deploy.sh
index efb7750..2226815 100644
--- a/deploy.sh
+++ b/deploy.sh
@@ -95,13 +95,13 @@ ssh_to_host() {
 hardware_detection() {
   echo -e "\n\n  🔎 Detecting graphics card on target host..."
   VGA_INFO=$(ssh_to_host "lspci -nn | grep -i 'vga'")
-  if echo "$VGA_INFO" | grep -iq "intel"; then
+  if echo "$VGA_INFO" | grep -iq "intel" 2>/dev/null; then
     echo -e "  ✅ Intel graphics card detected."
     TARGET_GRAPHICS="true"
-  elif echo "$VGA_INFO" | grep -iq "amd"; then
+  elif echo "$VGA_INFO" | grep -iq "amd" 2>/dev/null; then
     echo -e "  ✅ AMD graphics card detected."
     TARGET_GRAPHICS="true"
-  elif echo "$VGA_INFO" | grep -iq "nvidia"; then
+  elif echo "$VGA_INFO" | grep -iq "nvidia" 2>/dev/null; then
     echo -e "  ✅ NVIDIA graphics card detected."
     TARGET_GRAPHICS="true"
   else
@@ -109,7 +109,7 @@ hardware_detection() {
     TARGET_GRAPHICS="false"
   fi
   echo -e "\n\n  🔎 Detecting transconding acceleration on target host..."
-  if ssh_to_host "ls /dev/dri/renderD128"; then
+  if ssh_to_host "ls /dev/dri/renderD128" 2>/dev/null; then
     echo -e "  ✅ Transcoding capable card detected."
     TARGET_GRAPHICS_RENDERER="true"
   else
@@ -117,7 +117,7 @@ hardware_detection() {
     TARGET_GRAPHICS_RENDERER="false"
   fi
   echo -e "\n\n  🔎 Detecting USB Google Coral TPU on target host..."
-  if ssh_to_host "lsusb | grep -iq 'google'"; then
+  if ssh_to_host "lsusb | grep -iq 'google'" 2>/dev/null; then
       echo -e "  ✅ USB Google Coral TPU detected."
       TARGET_USB_CORAL="true"
   else
@@ -125,7 +125,7 @@ hardware_detection() {
       TARGET_USB_CORAL="false"
   fi
   echo -e "\n\n  🔎 Detecting Zigbee coordinator on target host..."
-  if ssh_to_host "ls /dev/serial/by-id/ | grep -i 'zigbee'"; then
+  if ssh_to_host "ls /dev/serial/by-id/ | grep -i 'zigbee'" 2>/dev/null; then
     echo -e "  ✅ Zigbee device found in /dev/serial/by-id/."
     TARGET_ZIGBEE_DEVICE=$(ssh_to_host "ls /dev/serial/by-id/ | grep -i 'zigbee'")
     TARGET_ZIGBEE="true"
@@ -216,7 +216,7 @@ files_generation() {
     }' docker/frigate.nix
   fi
   if [[ "$TARGET_ZIGBEE" == "true" ]]; then
-    sed -i.bak "
+    sed -i.bak '
     /^[[:space:]]*# ----------------------------------- #/{
       N;
       /DEVICES SECTION WILL APPEAR HERE IF/{
@@ -228,7 +228,7 @@ files_generation() {
               - /dev/serial/by-id/${TARGET_ZIGBEE_DEVICE}:/dev/ttyUSB0
         }
       }
-    }" docker/hass.nix
+    }' docker/hass.nix
   fi
 
   echo -e "\n\n  ✅ Copying files to the new installation..."