- ./invidious: Backend 1 without VPN
- ./invidious-vpn: Backend 2 with VPN
- ./invidious-vpn2: Backend 3 with VPN
- ./invidious-external: Backend 4 without VPN

(invidious-external is not any different from invidious, is just the name that I used when I created the backend 4, I don't remember why but as they say: "If it works, don't touch it")