Un-minified assets

Wondering if it’s possible to unminify css and javascript???

Working with a client who uses WP-Engine and edits off the server. After I hand off the site, they’re not going to be able to use gulp without a developer - they just need a few hot fixes every so often.

Using Sage 8.5.0

Sourcemaps can help a lot (when they are still available on production or can be retrieved/send from the developers).
For quick fixes, the browser inspector can be used because all the styles have been already applied in browser, regardless of how minified/unreadable they originally were.