A while ago I made this to get content from websites for reading in pdf. With what I use (Supernote) you can have an automated script to pull articles in the morning and put them in a dropbox folder that automatically syncs with the device.
Not only that but KOReader has native support for OPDS feeds, which the OPs read-it-later service Readeck also natively supports.
I have been using it like this for a while and it is absolutely bliss to be able to view a catalogue of my inboxed articles on my kindle, with annotation (exports of which are also supported in KOReader).
I missed my oasis dearly but I couldn’t wait anymore and got a Kobo Libre (not sure the exact model, th color one); it’s pretty much as good, only thing i miss is the dual battery system.
Koreader is well supported and has all the features you mention.
Love this approach — using existing hardware creatively instead of buying new gear. The Readeck + Calibre pipeline is clever, especially since Readeck can export directly to ePub.
One thing worth noting: if the "requires a computer" limitation bothers you, KOReader (an open-source reader that runs on Kindle) can fetch RSS feeds and even Wallabag/Readeck content natively over wifi. Might close that last gap without needing a new device.
Nice. I quit my job to build a product[0] to solve this exact problem.
I’m not interested in news but I love reading blog posts, newsletters and interesting technical discussions on HN or reddit.
So I built KTool as a “read it later on Kindle” solution. It supports web links, newsletters (via email forwarding) and RSS. I also added the ability to compile multiple articles into one magazine/ebook and deliver them at a specific time.
I also just did this! My solution was to automate creation of a set of static html pages that I view in the “experimental” kindle browser. It’s set to scrape a paper and build the site at 6am every morning. That was I don’t have to mess with the file transfers, and it’s there waiting for me when I wake up. Also I can mess with the layout a bit easier. Only downside is that I have to have next/back buttons rather than tapping on the screen.
After a couple of attempts I settled on a a different approach for my old Kobo.
It can connect to Dropbox so I deployed a small app in Fly.io which takes a link, bundles it as an epub and uploads to the right folder. Day-to-day all I use is a bookmarklet
This setup feels cumbersome, since you also have to manually track which items you have read. Kobo seems to offer better features in this sense (better than a jail broken kindle), however I like the build of my Kindle Oasis 2 too much.
I faced the same issue, but I wanted to use my Kindle to read RSS feeds without relying on my PC, phone or Amazon, so I built a FOSS web-based RSS reader compatible with the Kindle browser. It may make your life a lot simpler.