Question on building credibility with a blog

I'm building an IoT product on Amazon Web Services. Which, if you've tried navigating AWS before you will know that documentation is all over the place and difficult to wrap your head around.

I've figured out how to route the core services needed to have my IoT device stream real-time data to a web-app I wrote in React. My first reaction (sorry) is to write a blog post about all the steps I took to make it work. I know the Indie Hacker mantra is to build everything in public, but don't some folks put paywalls in front of their blog posts?

I have a group of folks interested in the end-product, which I will definitely show (ie. customers that don't care about how it's built). But I'm sure there are other developers that would be interested in easier AWS guides.

I would like to build credibility in the space but I'm also thinking of every avenue I can take to make money for the work I've put in. Thank you for any input!