AeroSpace
AeroSpace is an i3-like tiling window manager for macOS
...It supports multiple workspaces, per-display organization, and floating exceptions, so you can mix strict tiling with apps that are better left unmanaged. Configurability is a core goal: you can define rules for how specific apps should launch (tile vs. float, workspace placement), adjust gaps and padding, and fine-tune focus behavior. The project aims to feel native on macOS—respecting system features and accessibility—while giving power users the velocity they expect from a tiling manager. For developers and creators juggling many windows and monitors, AeroSpace reduces window fiddling to near zero, turning your desktop into a consistent, scriptable layout you can rely on all day.