Biometric Bridge — ZKTeco K40 Pro → Velos School Manager
Download for Windows Velos BioSync-1.0.0-win.exe · Windows 10/11 64-bit
Download for Linux Velos BioSync-1.0.0-linux.AppImage · Ubuntu/Debian 64-bit
Setup (3 steps):

1. Install on any PC at your school on the same network as the K40 Pro
2. Open it → enter your School ID from Velos Settings → Connect
3. Done — attendance syncs automatically every 15 seconds

Linux only: After downloading run:
chmod +x "Velos BioSync-1.0.0-linux.AppImage" && ./"Velos BioSync-1.0.0-linux.AppImage"