Some of us will have compliance obligations coming down the line for post-quantum crypto; the gist of which is understanding which algorithms we're using and whether they'll be suitable for protecting against quantum attacks in the future (but potentially against data collected as early as today).

Anyway, in case it's useful, here's a small tool that can either scan a host and port, or check for open connections and attempt to identify if they offer post-quantum algorithms.

I've only packaged it for macos so far, but it's just python.