You're a much more patient person than I am. I would've literally opened an editor, wrote a quick parser in JS, bundled it in and be done with the problem with

You're a much more patient person than I am. I would've literally opened an editor, wrote a quick parser in JS, bundled it in and be done with the problem without going any further. This functionality, if I am understanding correctly, is to grab all the classnames from HTML files and then pass that to a tool that includes those, and only those, in a .css file. I'll burnout in no time if I spend even 20% of my time working on configuring or debugging the environment and the rest on the development activities[1]. I can't imagine roles where time is split 50/50 (or more) between "fiddling with YAML, npm, AWS, etc" and "development". [1] I include requirements elicitation, debugging, talking to customers, etc as "development activities".