Dune is a compact physical keypad for Mac that sits beside your keyboard and changes what its three keys do in real time depending on which app has focus. Switch to VS Code and the keys might trigger a build, a breakpoint, and a commit. Jump to Zoom and they become mute, camera toggle, and leave. No manual mode switching — the keypad reads the active app and reconfigures instantly. It's built specifically for developers working across GitHub, VS Code, Claude, and Openclaw, as well as anyone running AI agents or moving between back-to-back video calls on Zoom, Teams, or Google Meet. The idea is to reduce the gap between intention and action: instead of hunting for a shortcut or clicking through a toolbar, your three most relevant actions for the current context are always one key away.