Update

Due to a change in family responsibilities, I've had to work with a lot more documents in many more ways much more frequently than I have had to in the past. A lot of the tools and approaches are the same that I have used, but I'm using them all …

Welp. My brain reached for the name of the tool used to show the process identification numbers (PIDs) for processes using various ports.
But, it couldn't come up right away with fuser.

So, here I am, leaving a memento of sorts to help me.

Getting older, have a lot beyond …

Given my long stint doing a lot of sysadmin type work, which saw me working across many machines, often of disparate types, I have tended to customize my environment very lightly.

Doing less of that and more of other things, I've really begun to add some dependencies to my environments …