A promising alternative is http://misago-project.org/
Very nice indeed! Django+DRF and React+redux is like four of my favourite things combined. The frontend build file is gulp, so make that five.
working on a similar project, too. github.com/lez/societybuilder (deployed at jovilag.net). Sorry for not being english just yet.
technology: pyramid + peewee + react + redux + postgresql