Gotcha. I think the indie community could find it fun and useful - reminds me of a single spot that aggregates those occasional HN posts: "what are you using to build your 1-person startup, hobby, side project?"

However, if you're planning on monetizing: the competition is fierce. The industry is called Technographics. For example, Wappalyzer can segment millions of companies using thousands of tools (here's their list: https://www.wappalyzer.com/technologies/). You'll see 40 A/B testing tools, 104 Live Chat tools, 63 Issue Trackers. It's intense.

Edit: I just saw Twelve.Tools. Even though you didn't know the websites I mentioned, it's clear you DEFINITELY know technographics! Great site.