Valve ported Half-Life: Alyx to Steam Frame, a standalone ARM-based VR headset, despite initial skepticism that it was impossible. Engineers overcame fundamental GPU architecture differences and spent 18 months optimizing drivers and the SteamVR stack, with foveated rendering and eye tracking proving crucial to the project's feasibility. The port's primary value lay in stress-testing Valve's software stack for the new hardware rather than as a commercial product.