Could you even send the source code?
I'm sure he will.
However, if he sends you only a binary you should be VERY careful. It could have hidden malware designed to steal passwords or bitcoins or altcoins while it's doing what you want.
Furthermore, if he sends you both source and a binary, you would be MUCH better off reviewing the source yourself (and/or having others review it for you) and then compiling it rather than trusting the binary.
I'm don't actually worry that amaclin will send you malware binaries, I'd expect someone to require source from me for the same reasons. There's just no good reason not to send the source and no good reason to trust a binary in a situation like this.