Chrome DevTools > Service Workers > Testing > Local dev environment serves via http on a LAN

As above, is there an easy way to allow service workers for local development when served via http on a local network when using chrome & dev tools?

Is there a port # to serve on? Did I miss an option in Dev Tools to allow a domain?

I am aware of this answer from a Google Dev suggesting it isn't possible without hacking chrome, but that answer was given back in 2015 and a lot has happened with PWA/sw.js since then - so I am hoping I'll get lucky!

Thanks for any assistance in advance.