Remove DRM from Kindle in Catalina: anyone use Epubor?

Could you please direct me to a post or somewhere with more information on how to get ebooks off a Nook & deDRM them? Have you had recent success getting your Nook books over to Kindle? I’m not familiar with Apprentice Alf or Android Studio, but I’ll check them out.

I recently got a Kindle Paperwhite and I’d like to read the Nook books on the Kindle. I do not have the legacy Nook for Mac on my newest Macbook Pro and have had difficulty getting the Nook books onto my Mac at all. I was able to download the ebook files onto a friend’s Windows 10 computer, but when I transferred them into Calibre (with the deDRM plugin installed) it didn’t work. I’ve read this is because B&N changed some things earlier this year to make it more difficult to deDRM their ebooks. Any tips would be greatly appreciated as I have been banging my head against a wall for two weeks now trying to figure this out.