First of all, thank you for the kind words :) Secondly, don't feel bad! I'm sure you know much much more than you give yourself credit for. This took about a full weekend plus another day, and a few more days of working here and there when I have time. But as was written somewhere else in the comments and as I wrote myself in the README, the hard work of making Doom more portable was done by the incredible project doom-generic which I forked: https://github.com/ozkl/doomgeneric