You're welcome.
In retrospect I sort of got over excited and rather than answering your exact question I just shared a bunch of my favorite channels. But hopefully you can still find one or two that fits the bill. :)
Some other channels I like which probably aren't all exactly in line with your stated interest (e.g. vacuum tube computers), but I believe produce good content in the retro computer (and adjacent) arena:
8 bit show and tell (mostly commodore stuff) Ben Eater CuriousMarc Tech Time Traveler
I've left out some that I like (Cathode Ray Dude comes to mind) which are just too far afield of what I think you are asking for, but are still, in my opinion, good retro computer channels (more or less). Of the ones I mentioned I'm thinking maybe CuriousMarc probably fits best with exactly the kind of thing you are looking for.
I took Daphne in to the office yesterday. Let's just say she was underwhelmed.
I thought I would get the ball rolling with a photo of Daphne, doing the inquisitive head tilt!
No, my work experience is in the system/network administration and software development fields. So you could say it is adjacent to that somewhat. I've just always loved computers and have wanted to understand how they work and what they can be used for. I get to do a lot of that in my job, but I guess there is a part of that itch which isn't scratched by what I do in the office.