[🔑 Feature] Programmatic Config (e.g. PostCSS)

[arpowers]

Hey guys,
I'm working on the new version of Factor and I think Vite is going to work for it.

The only problem is one thing: programmatic config.

Since Factor is plugin oriented we need a way for plugins/themes to set configuration options outside of cwd... right now, in the case of PostCSS for example, config can only be loaded from the working directory.

Can we make it possible to set the configuration programmatically?

[mrcsmcln]

Agreed! Would be very helpful for users who like their config files in ./config or similar. Even just being able to edit the options passed to postcss-load-config (which get passed to cosmiconfig) would work.