There should be an option to enable a handshake process between the app and the server

I use this app a lot on work so I can stream my PCs audio through my phone where I listen to my songs (PC is on internal network that has Spotify blocked). Since the app is actively listening on multiple IPs, including on the internal network, anyone that uses this app too will be able to connect to my PC. There should be an option where I could allow or deny access to the server whenever the app tries to connect.

There will be password protection in the future