Trying to set up a crude prototype system to test BIMI using open-source tools

Please bear with me, I’m definitely not an expert here, and this is one case where Google, Bing, and their many AIs are not getting me a useful answer…
TL;DR? I’m looking for information on how to embed a logotype on a X.509 PEM certific… Continue reading Trying to set up a crude prototype system to test BIMI using open-source tools