diff --git a/starter/install.sh b/starter/install.sh
index 8fab90d..099d955 100755
--- a/starter/install.sh
+++ b/starter/install.sh
@@ -10,7 +10,7 @@ if ! command -v nix &> /dev/null; then
 fi
 
 # Check if we need to enter a new shell
-if [[ ! -v INSIDE_NIX_SHELL ]]; then
+if [ -z "${INSIDE_NIX_SHELL+x}" ]; then
     export NIX_CONFIG="experimental-features = nix-command flakes"
     export INSIDE_NIX_SHELL=1
     exec nix shell nixpkgs#git nixpkgs#mkpasswd --command bash "$0"
@@ -270,8 +270,13 @@ EOF
 
 echo "📦 Setting up environment files..."
 # Update environment files with domains
-sed -i "s/N8N_DOMAIN/$N8N_DOMAIN/g" ./env/n8n.env
-sed -i "s/BASEROW_DOMAIN/$BASEROW_DOMAIN/g" ./env/baserow.env
+if [[ "$OSTYPE" == "darwin"* ]]; then
+    sed -i '' "s/N8N_DOMAIN/$N8N_DOMAIN/g" ./env/n8n.env
+    sed -i '' "s/BASEROW_DOMAIN/$BASEROW_DOMAIN/g" ./env/baserow.env
+else
+    sed -i "s/N8N_DOMAIN/$N8N_DOMAIN/g" ./env/n8n.env
+    sed -i "s/BASEROW_DOMAIN/$BASEROW_DOMAIN/g" ./env/baserow.env
+fi
 
 echo
 echo "⚠️  Important: By proceeding the existing virtual machine will be overwritten!"