Build, run, navigate and edit in Apple's IDE. Xcode is macOS-only, so everything uses the ⌘ key.
Three keys carry most Xcode sessions: ⌘ + B to build, ⌘ + R to build and run, and ⌘ + . to stop. Add ⌘ + U to run your tests and ⌘ + Shift + K to clean the build folder when something stale needs clearing, and you've covered the daily cycle. Because Xcode rebuilds incrementally, leaning on ⌘ + R rather than the toolbar button keeps you in the editor and in flow.
Open Quickly (⌘ + Shift + O) is Xcode's fuzzy file-and-symbol jump — start typing a filename or function and press Return to land there. ⌃ + ⌘ + J jumps to a symbol's definition, and the back/forward pair (⌃ + ⌘ + ←/→) retraces your steps like a browser. The number keys manage the workspace: ⌘ + 0 hides the navigator to reclaim width, while ⌘ + Shift + Y toggles the debug console. These pair naturally with the Mac keyboard shortcuts underneath.