OpenVPN Exemple / Documentation

Hello,

i want to use OpenVPN with ThinOS Clients. In ThinOS 2303 the OpenVPN seems to get renewed and i tryed to get it work but i dont get it to work.

Is there any Exemple or Documentation about it?

No one would know how to setup an working OpenVPN Setup if no one knows how it works, what are the requirement, can we use Certifikations, is there an auth file for saved Username / Password and such on. I cant get it working and maybe some other PPL have the same proplems. We are a Small  Bussiness so we cant use big and expensive solutions just for 1-2 Mobile Clients.

If someone has any tips or have an working setup this would help me too i think.

Thanks