Hacker News Reader

Fair game. While not there yet and focused at the challenges that print production presents, we should be able to offer epub/mobi/mobile friendly/ereader friendly versions soon (since we create pdfs from html)

I did something similar some years ago as a personal project to keep an usable and searchable local copy of the interesting stuff found online: a web app that fetch Pocket read later list, convert the articles to pdf stripping not useful parts (and ads), archive them in a Dropbox folder and finally delete the Pocket elements themselves to keep the list clear (and obtain a little more privacy).

Soon I will get a new e-reader, perhaps I could refresh and publish it on GitHub :)

Not directly related, but I'm working on building a tool to automatically send newsletters right to your Kindle: https://newsletterstokindle.com

I've been beta testing it for a while and love reading longer articles/newsletters right on my e-reader