Competent or not, slop is still slop. The website in particular uses the exact same copy-paste layout/style produced by LLMs and used by pretty much every slop project out there.

One very quick "slop or not?" test is to see if em dashes are used in the source code where they literally never make sense. It's not a great test, but it's one that consistently turns out to be good enough. The results should speak for themselves: https://github.com/search?q=repo%3Ajolt-lang%2Fjolt+%E2%80%9...