Simple Go endpoint for proxying steam group member lists

This currently is intended for execution on a fly.io free-tier VM.

To setup:

Setup an account on fly.io then install flyctl.

$ cd memberproxy-go
$ flyctl launch
...
$ flyctl secrets set GROUP=Valve # steam group example name to query
$ flyctl secrets set WEBHOOKURL=https://discord.com/api/webhooks/1/2 # Discord webhook to log New/Removed group members to
$ flyctl secrets set SECRETENDPOINT=02938740958723894752345 # use something random like this lol

And don't forget to point a domain to the VMs IP (flyctl ips list) (if you want).