If you add Kobo support and ship the Android app, you've got a premium member for life in me!

Currently, I use KoboCloud to sync cloud drive (Box, Google Drive, et al.) folders to my readers, one folder for each family member. I use browser extensions to create epubs for websites on the fly and save them to the cloud drives, but can't find a great-looking solution for mobile (Android in particular). Many sites I visit like HN comment sections just don't reformat well and it looks like you have a wonderful solution implemented for that aspect.

there's send by mail" functionality in Kobos via Pocket, but it would need you to spoof the sender for attribution ( https://help.getpocket.com/article/1020-saving-to-pocket-via... ) and the account to whitelist the email address prior. My impression towards "pocketed" hn-links is they're crawled once and not refreshed - so you miss out on many comments if the article was already cached when it had only a few comments.