No background info I'm afraid for this great little program.
The program is Listed at end of video.
https://dai.ly/x8mkpc2
Link:
https://www.cpc-power.com/index.php?page=detail&num=16463
Not emulated - original hardware and software.
Please note that the aspect ratio for this video is 16:9 but the CPC monitor has
an aspect ratio of 4:3 so you may wish to adjust your viewing device accordingly.