For a bigger project I am figuring out how to extract and verify certificate data for a given domain. This is my unorganized sandbox and not actually guaranteed to contain flawless (or working) code.
Git is mostly my backup mechanism here but I didn't see much sense in not making the repo public.
Disclaimer: I am not catching errors correctly, sites not using a proper TLS setup will probably segfault or open a gateway straight to the 7th circle of hell. Sorry.