New "Send to e-reader" workflow:
- Install the extension
- Load an article you would like to send to your e-reader
- Click on the extension icon in the top right corner of you browser, this opens the article on Papeer.tech
- Click on "Send"

You don't need to use an API Key anymore, the extension opens Papeer.tech. Just make sure you are logged in on Papeer.tech.

Fix: export not working