The sound library for the engine I'm using is over 20MB. Will it count in size or not?
I'm using Processing (It's Java based) and the Sound library is from there so does it count as built-in or not?
Get it to export to a JAR (probably has the Media inside) or HTML+JS+Media. That's what needs to take, at most, 1.44MB.
I couldn't export the project on Linux so I can't help further.