In the February 2017 issue of Linux Magazine (in the Linux Voice section), there was mention of Cool-Retro-Term. It gives you a terminal emulator that tries to duplicate the experience of using an old cathode ray tube monitor. But I also noticed that it comes with a dmg for installing on macOS.
And since I like a bit of retro technology, I couldn’t resist trying it out. So I went a put a copy on my MacBook Pro. It really is quite cool looking, and visually reproduces an ancient monitor quite well. It even has a bend at the edge of the screen. Personally, I’ve turned off the glow line feature because I found it distracting. I have also made the font smaller so that I can get more text on the screen – that’s probably cheating – but it made the terminal more usable. Currently, I’m using the Apple II font from 1977.
Here I am using it to mess about with streaming radio from Madplay on one of my routers running OpenWrt:

It was really simple to install on macOS, and it really does faithfully reproduce the monitors from the old days. It’s good nostalgic fun.