How might I quickly find out which tracks feature Approaches for specific exercises?

When starting on new Approach documents, I have found it instructive to look at prior work elsewhere first. However, as far as I know finding this prior work is not easy.

I thought I might just programmatically ask the server, but it turns out that pages for nonexistent Approaches do exist (example) and hence that all such urls return 200 whatever the Approaches’ existence.

Here’s a github search for pangram:
user:exercism path:/exercises/practice/pangram/.approaches filename:config.json

c, java, go, python, julia, javascript, rust, csharp


GitHub Search has changed. Here is the above query, updated:

user:exercism path:**/exercises/practice/pangram/.approaches/config.json