Ah this is from the creator of the 'rcmd' tool. I absolutely love it. Press the right command key + the first letter of an app and it switches right to it! (rcmd + for firefox, i for iTerm, s for Slack, ...)
I came from i3 with 8 predefined windows, but the simplicity of rcmd is really amazing.
Thank you, I'm really happy to read you find rcmd so useful ^_^ Also came from i3wm and missed it sorely until I finally settled on rcmd + single-space.
Using multiple spaces on macOS is nowhere as easy as on i3.
I actually do plan, yes! There's so little concrete info on this subject on the internet, that I had to do a ton of trial and error to get fipple design right, tuning, choosing the right wood etc.
I want to collect all my notes on this and publish a series of articles in 1-2 months. Glad to see others interested!
I came from i3 with 8 predefined windows, but the simplicity of rcmd is really amazing.