I know how to spin my own VPS or port forward my own home setup. I'm trying to figure out an idiot-proof service stack that lets a non-techy, let's say, host a

I know how to spin my own VPS or port forward my own home setup. I'm trying to figure out an idiot-proof service stack that lets a non-techy, let's say, host a Quake server from a coffeeshop, with strangers that he just met in Discord, without persuading everyone to install "sketchy cli programs". Tailscale Funnel comes close but they're restricted to basically just website traffic.