If you don't like the process of making the cards, you could try exporting the words or sentences from kindle into Anki. I like to use clippings.io. These were some of my highlights from The Little Prince. Unsurprisngly there's also a DeepL add-on for Anki for mass translations. Source: over 1 year ago

I used my yesterday's evening to create a small JS script to remove automatically more than 90% of duplicate entries (at least for me :P). As far as I know, there isn't any working script/program to do this with the latest kindles or nothing maintained anymore (if there is, tell me). Also, clippings.io doesn't do anything with their promised "deduplication", so I created this makeshift way of more or less cleanly... Source: almost 2 years ago

I was originally "anti-Kindle" (well anti-Amazon tbh) and loyal to a proper paperback/hardback book. When I had to do lots of business travel I tried a Kindle (Voyage) and I'm fully converted. It's not just having all books on one device, it's that the battery last for ages, it's fairly robust (I treat it badly - thrown in travel bag etc) and it still survives...but, the huge thing for me was Wiki, Dictionary and... Source: almost 2 years ago

Are all tools /websites compatible such as clippings.io? Source: about 2 years ago

In the past I used clippings.io to import "My Clippings.txt" and then to export to Evernote, sadly the author went nuts and now charges in Russian gold. Source: over 2 years ago

For the feed aggregator, I personally use the online reader on feedreader.com. Source: almost 2 years ago