Made an Automator workflow/print plugin today to convert long-form articles / tutorials / et al on the web into optimized PDFs and email them to my Kindle (made a similar Shortcut for iOS about a month ago).

Reading on an e-ink screen > any other screen.

If you'd like to do this yourself, here are the steps I took — note, your milage may vary: This is working on macOS 10.14.6, using Apple Mail (and currently, the final step of sending the generated message isn't working for some reason… will add to this thread if I can fix).