Charmstone (Paid) The quicker switcher launcher for macOS, same as Rcmd. Just another choice I guess. Source: over 1 year ago

Not exactly what you are describing: Charmstone. Source: over 1 year ago

Charmstone [1] is a different take from everything mentioned here (I'm the developer). The idea is to use your spatial memory to switch/launch apps faster than anything else that I've found, with a smaller learning curve and less memorization. You can use keyboard shortcuts with the arrow keys, modifier keys + cursor movement, or a trackpad gesture. [1] https://charmstone.app. - Source: Hacker News / over 1 year ago

Https://charmstone.app is somewhat like this OP. Source: over 1 year ago

I had a few people point out how this is similar to https://charmstone.app,. - Source: Hacker News / almost 2 years ago

I’m eager to try this out, but you might also want to check out Steermouse[1], which is a utility it took me years longer to discover than it should have. I’m not sure how it stacks up to this open source project, but it’s definitely been worth the license cost to me over the years. [1] https://plentycom.jp/en/steermouse/. - Source: Hacker News / about 1 year ago

There are 3rd party apps like Steer Mouse that let you re-assign buttons/shortcuts on a Mac, but I haven’t used them in a long while, so can’t really speak to compatibility. Source: about 1 year ago

Will I use steermouse to configure the mouse. But didn’t put any specific configuration for arc. Source: about 1 year ago

Use SteerMouse instead, same developer. Indispensable, if only for the snap-to-default button feature. Source: about 1 year ago

Also, whatever you decide on, I recommend skipping manufacturer software and using SteerMouse instead to adjust sensitivity, acceleration and button mappings. Source: about 1 year ago