Can I use raspberry pi as Go server and also for public access?
or better find a cheap vps? (there aren't any actually, after I convert the price into local currency)

yes with docker thats easy to do for dev and personal side project purpose.
However for production you'd rather use a serverless server service.

if you'd like to learn how to use docker container for your app klick on this link.
https://katacoda.com/courses/...

vultr cloud compute (vc2) looks cheaper
any idea about that?

@-newaj seems nice.

but read this first
https://hackernoon.com/what-is-serv...

thanks
I'll look into

You can use ngrok to expose local host machine on public access URL.

How about digital ocean? I can give you a link where you get $100 dollar to be used in the first two months

@Codex404 he's from Bangladesh. Do you know how low wages are in Bangladesh? So what's after the 2 months and $100 of digitalocean?

Arubacloud vps is like 2.something dollars a month

@heyheni 5 bucks a month max, some months like february less because you pay per second of running

@ganjaman vultr have 2 something dollar which looks good