DIY Chrome Extensions

Sold 25 copies by the end of the webinar ($69 each) and had messages from four people wanting to show it to their "groups". Sold 8 more in the 24 hours after the webinar to attendees and prepared a presentation for these Groups. Have sold more copies and am considering raising price or making it a subscription.

I noticed that the submission process had changed and I'd need to learn the new methods and then maybe I could still make use of these extensions for SEO and marketing purposes. Arrgh! Frustrating at first so I reached out to get some feedback from a couple of friends who code.
Finally was able to create a piece of software to near-automate the process of creating the base "package" required for Chrome Extensions and after playing around myself for a couple of weeks, reached out to a software developer friend and sought his counsel. Decided to offer the software to others, so built a quick website and then reached out to my contacts and associates in the world of SEO...

Late in 2018 I was looking through Chrome Extensions as a Google product that could help me in marketing. I built a few of them then played around and found that I could rather easily get them on page one searches in Google and Bing. Viola!
Was this replicable and is there a market for this service or product.
I ended up compiling a PDF "How-to" and sold it for some profit ($400+)
I continued using this method on occasion until the Chrome Store changed its submission protocols in 2021.