Former software dev with a cs degree

Would you be doing this part time? And with 16 years of dev experience you probably have a ton of ability to pick things up quickly that you might not realize. I would recommend doing a big project in a modern stack like React and Node.js and learning little things along the way as you get blocked. I know Amazon will pay for a program but this approach would be more effective IMO. When the time comes to job hunt, I would then look at interview prep programs like Formation (disclosure: co-founder) and Interview Kickstart. Something that recaps CS fundamentals and gets you interview ready.