Good point.

At this point, the options can have three values (`true`, `false`, `'parse'`) and there are basically "parse options" and "transform options"... In order to get requirejs modules, you need to set `modules = 'parse'` and `requireJs = true`. That means, parse modules, but do not transform (use RequireJS transformer instead).

I would much rather make it higher level option, where `modules` can take `requirejs`, `commonjs`, `globals`, `tracer` (the default option). Based on that, we would take care of setting correct transform/parse options. Users don't care about parsing/transforming/whateva...