[limitedmage]

Not exactly what you’re asking for, but I’ve used https://p2k.co for many years and it’s great.

[zeristor]

I used to print web pages out and read them on the train, then there was a lovely web plugin to send a web page to kindle, that stopped and did leave lots of files on my kindle.

This looks like it could top that, I just don’t commute so much.