How do these ”Compile your Node Script” projects work?

I think these projects are awesome, but it’s not blatantly obvious by the source code (fine.. I’m a n00b) how they’re compiling the node scripts. Can some one pull out the crayons and explain the process?http://ift.tt/2pJcVLV http://ift.tt/2iWXrgw http://ift.tt/1ExnHSL

Submitted February 04, 2018 at 07:04PM by rms1000watt