Keyboard-driven window tiling that replaced a paid app and does exactly what I want.
Arranging windows by hand all day is constant friction, and the paid tools only do their fixed set of tricks.
A Hammerspoon-based manager with a hyper-key grid snap, twelve position keys, launcher bindings, and a settings GUI. Fully scriptable, so it does what I want and nothing I don't.
Owning the automation layer of your own machine compounds. Every workflow built on top of it gets faster.