Building my own Headless E-commerce Platform

Hey guys

I'm currently thinking about releasing a headless e-commerce platform that I built for one of my clients.

A little bit of context:

I recently got a client that wanted an e-commerce web page, (they are a physical store and they wanted to start selling online) so I began to work on that.

First, I was researching because I wanted to pick the best cost/benefit headless platform to build the page on top of it. However, I didn't find one that met all my needs.

Using Shopify was a good option but I didn't want to give Shopify my money for such basic functionalities that I'd be using.

Long story short, I ended up building that system by myself and I finished it a few weeks ago.

So, I was wondering if it would be a good idea to jump into this market since I consider my platform so easy to use and the operation costs are extremely low. (I only pay 30 dollars in total cost, and it could still have 3 or more clients with almost the same budget).

So, I'd appreciate any feedback and your honest opinion on this.