Personal patches for yabai. Cherry-pick them to your own fork if you want to use them:

• Upgrade IPC from unix sockets to mach messages
• Reduce flickering on new window
• Add rounded borders and background blur
• Allow zooming to fullscreen if previously zoomed to parent
• Allow only one child at a time to zoom to parent node
• Zoomed windows occlude windows below in the next-window-in-direction calculation
• Focus closest window on application termination