diff --git a/npm_install.py b/npm_install.py
index 968c62f..622f808 100644
--- a/npm_install.py
+++ b/npm_install.py
@@ -209,24 +209,7 @@ def validate_supported_os():
     
     SUPPORTED = {
         'debian': ['11', '12', '13'],
-        'ubuntu': ['20.04', '22.04', '24.04'],
-
-        # Debian derivatives
-        'proxmox': ['7', '8', '9'],
-        'devuan': ['4', '5', '6'],
-        'armbian': ['23.02', '24.02'],
-        'mx': ['21', '23'],
-        'kali': ['2023.1', '2024.1'],
-        'parrot': ['5', '6'],
-
-        # Ubuntu derivatives
-        'pop': ['20.04', '22.04'],
-        'mint': ['20', '21', '22'],
-        'zorin': ['16', '17'],
-        'elementary': ['6', '7'], 
-        'kubuntu': ['20.04', '22.04', '24.04'], 
-        'xubuntu': ['20.04', '22.04', '24.04'],
-        'lubuntu': ['20.04', '22.04', '24.04'], 
+        'ubuntu': ['20.04', '22.04', '24.04']
     }
     
     if distro_id not in SUPPORTED:
@@ -235,9 +218,8 @@ def validate_supported_os():
         print(f"\n   Supported distributions:")
         print(f"   • Debian 11 (Bullseye), 12 (Bookworm), 13 (Trixie)")
         print(f"   • Ubuntu 20.04 LTS, 22.04 LTS, 24.04 LTS")
-        print(f"   • Debian derivatives: Proxmox VE, Devuan, MX Linux, Kali, Parrot")
-        print(f"   • Ubuntu derivatives: Linux Mint, Pop!_OS, Zorin, elementary OS")
-        print(f"\n   Your distribution may work but is not officially tested.")
+        print(f"   • Debian derivatives: Proxmox, armbian")
+        print(f"\n   Your distribution may work but is not tested.")
         print(f"   Continue at your own risk or install on a supported system.\n")
         sys.exit(1)
     
@@ -253,7 +235,7 @@ def validate_supported_os():
         print(f"\n ⚠ WARNING: Unsupported version of {distro_id}: {version_id}")
         print(f"   Detected: {OSREL.get('PRETTY', 'Unknown')}")
         print(f"   Supported versions: {', '.join(supported_versions)}")
-        print(f"\n   This version may work but is not officially tested.")
+        print(f"\n   This version is not officially tested.")
         print(f"   Prerequisites:")
         print(f"   • Angie packages must be available for your distribution")
         print(f"   • Check: https://en.angie.software/angie/docs/installation/oss_packages/")