I have a Raspberry Pi that I want to be able to run Transmission on for torrenting purposes. I have Transmission installed.

I want to have openvpn running but only for Transmission and not touching the rest of the services. I have to access many of the other services on the Pi from the web and therefore cannot have the VPN interfering with that.

I have a ProtonVPN account and downloaded all of the openvpn UDP config files.

I would like to have the VPN running but split-tunneled so that only Transmission is covered by the VPN.

I have searched for guides that explain how to do this but so far none of them are adequate or go into enough detail.

Does anybody have a guide that can explain it all in detail, or know what files to edit and what to put in them?

Thank you in advance for any help you can provide.

None of this is using Docker.