Lots of prior info available

https://news.ycombinator.com/item?id=14974383

https://news.ycombinator.com/item?id=13425728

https://news.ycombinator.com/item?id=13249523

Also DIY options :

https://github.com/ttlequals0/autovpn

https://github.com/jlund/streisand

https://github.com/trailofbits/algo

https://github.com/Nyr/openvpn-install

https://github.com/robbintt/popup-openvpn

https://github.com/sovereign/sovereign