It would be great if you opened an issue on GitHub (or a PR) so we can fix this. I definitely want this to work on all Kindles including older models. Thank you.
It's hard for me to debug this because I don't have a Paperwhite 7. I assume it's a JS compatibility issue but not where the exact root cause.
Since the reader is Open Source, can you run it on your machine and view it on your local network to debug and tell me what's the issue so that I can fix it?
I haven't open sourced the Backend yet, but the reader frontend repo is fully working without the Backend. The Backend is used for emailing yourself and doing file conversion on the Backend instead of the Kindle to save battery.
So without the Backend you're only missing the email feature. All you need is a proxy to bypass CORS.
To be honest I was thinking of keeping the Backend closed source to add subscriptions ($1 per month) to cover the hosting (4$), which means I only need 4 users to break even haha.
Will think about open sourcing the Backend and get back to you.
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.
Why Jailbreak the Kindle when you can just open its browser and visit a website that shows the arrival times?
The Kindle browser is surprisingly decent, I made Claude Code generate an RSS feed reader compatible with the Kindle browser, with the ability to read full articles (for those feeds that require you to visit the website), and download articles. It also supports Reddit and Google News RSS feed. This is my new favorite way of browsing the internet.
Have we seen a company fail because they're not adopting AI as much as their competitors?