I'm all for modifying Wakaba, but the problem is that the difficulty in doing so lies deeper than the fact that Wakaba was written in perl.

For one, he keeps everything in one file, so therefore the structure is not completley straightforward at first look. Many of the less-crucial subroutines are left completley without comments, and it is unclear what exactly they do.

I often get the feeling that I cannot understand a single subroutine in Wakaba without understanding all the subroutines.