next dev option for specificed config file

[stcalica]

Goals

1. Separate my build in it's different stages (development, staging, production)
2. Be able to do quick development where everything is not always optimized when using the next dev server

Background

While trying to build and prototype my site or app I keep having these large loading times do to Image Optimization or having the "output: export" but I have to currently set things to false or comment out the output setting when doing development and revert before I push to production.

Proposal

I would like the feature to simply have a --config option so

next dev --config next.config.dev.js