This is great advice, it’s pretty much the same approach I’ve had to do.
Anything involving leaving the house is basically impossible for me due to required activation energy and associated anxiety. Investing in a good treadmill was one of the best decisions I ever made. Got one with a shelf built in for a phone/tablet so I can watch videos while I run. I know that type of exercise is not what was asked for, but the same principle applies to body weight exercises or free-weight training you can do if you buy a set of weights:
Make it something you can do from home to minimise startup friction
Set up a way to stimulate yourself while working out
Make the exercise program varied and bite-sized so you just have to focus on finishing the current exercise instead of starting to think about how long time is remaining on the program (which is why I run intervals on the treadmill).