I often have a backlog of 10+ tabs I want to read on my Kindle. Adding a command to process a .txt or .csv file of URLs in one go would be a massive time-saver for Sunday reading prep.
When converting scanned PDFs, Kindleify currently produces a blank EPUB or one with missing text. Integrating a lightweight OCR flag (like --ocr) for these cases would make it the ultimate document tool.
Kindleify struggles to extract full text from Substack or sites with soft paywalls. A flag to pass session cookies or a custom User-Agent would help us get our newsletters onto the Kindle without manual copy-pasting.