Monitor your network for unknown MAC addresses using data from UniFi controller and alert using Pushover

I have tried and used "Watch Your LAN" and NetAlerX for several year and got tired of the way they works by scanning the network (arp-scan)
This small script connects to your Unifi controller API and get all client data and verify MAC addresses with a simple text file.
If I need to add another trusted MAC address, you just add another line in the text file.
So far I keept it very small and basic (on purpose).. :-)
BTW. I'm not a coder by trade so don't expect to fancy features snd streamline coding....\

• Extract all known MAC addresses connected to your network managed by Unifi Controller
• Alert to Pushover if new (untrusted) MAC addresses are seen on the network
• Manually add trusted MAC addresses to trusted.txt

Not available at the moment

• Add simple WebUI to add trusted MAC addresses to trusted.txt
• Add more notification services Discord, Gotify, a.s.o
• add feature to block all untusted MAC addresses