[Self-host Help] Reverse Proxy with Subfolder - eviltoast

How would I self-host wefwef with a reverse proxy? Is it possible to point wefwef to a subfolder such as https://domain.tld/wefwef

I have a VPS that hosts other applications with docker using LinuxServerIO’s swag (their version of nginx) so does anyone have an nginx config I could modify to work for me?