Yeah, I made this app as I switched a family member's mac from an Intel mini to M1 and was mystified by the fact that no matter what tricks I was trying, it was not working with the Lenovo 24" QHD display as before (getting a 4K display was not an option due to cost and size constraints - no good 24" 4K display is available for a reasonable price and there ppl who don't want huge displays on their desks). I purchased a HDMI dummy but had constant issues with it, so I had to explore other avenues.
My creativity is normally put to use on something other, like MonitorControl, but working on BetterDummy is fun as well. :)