DD-WRT
Used by 2 peopledd-wrt.com ↗

“We use DD-WRT on routers because we can use cheap hardware, and because we can put an OpenVPN client directly on the router.”
Karl Anderson Interview, Software engineer, phone hardware hacker · via Uses This
“We use DD-WRT on routers because we can use cheap hardware, and because we can put an OpenVPN client directly on the router.”