When I compile to js, I get the following at the top of my resulting javascript:
/* Generated by the Nim Compiler v0.18.0 */
/* (c) 2018 Andreas Rumpf */
IANAL, but this seems like a problem.
I assume it means
"this code was generated by the Nim Compiler, and the compiler is copyright Andras Rumpf"
As opposed to the way it generally reads:
"this code was generated by the Nim Compiler, and the following source code is copyright Andras Rumpf"
Because, you know, if all Nim programmers are forfeiting their copyrights to Andras, I recommend placing a notice to that effect on the web site somewhere :).