From the article, it looks like the widevine bypass was a single compromised device that this company had and paid a subscription for, which they then used to feed their iptv business. Probably nothing possible to do yourself without a serial cable and some good technology knowhow.
How can I use this technology to DL shows from my Netflix and Prime subscriptions so I can watch them offline?
There’s a bunch of shows on Amazon I’d love to “buy” if it means I could actually keep it.
You should probably ask this in a piracy community. I’m not sure if answering here is against the rules.
Just download a copy. Someone already did the leg work and probably did a better job than you could, without serious effort.
From the article, it looks like the widevine bypass was a single compromised device that this company had and paid a subscription for, which they then used to feed their iptv business. Probably nothing possible to do yourself without a serial cable and some good technology knowhow.