You make a good point. The solution is quite simple though, look at what they did with the non-mainstream language and ask a few questions. In my case, it would

You make a good point. The solution is quite simple though, look at what they did with the non-mainstream language and ask a few questions. In my case, it would take me a couple of minutes to find out if someone just read "Programming Erlang" or a few online tutorial or if they have indeed built an OTP app.