Unfortunately `partition-bundle` can only partition by enrty points specified via configuration. Webpack can also do that and more importantly it can do splitting by split points in code: `require.ensire('./page', function(page) { ... })`.
Regarding `cssify`: does it able to extract styles into a separate CSS chunk so I can just include it <head />? Also what if it finds a reference to a font or an image in stylesheet? Webpack can handle all of that (embedding css in js bundle, splitting css into separating chunk, embedding font/images as base64 data URIs or treating them as separate assets and copying into output) and in configurable manner.
I like browserify for its super easy and thoughtful API but in terms of features I really need and use I prefer Webpack.
Can you point to browserify plugins/transformers/guides on how to handle CSS bundles, handling static assets and split points in code? I'm asking because I was searching for those and didn't find. Then switched to Webpack as it provides all of those.
React Forms uses immutable data (not so advanced as mori, just makes sure it doesn't mutate and produces a new copy on update). So that UndoMixin only works with immutable data.