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Valve open-sources Lepton, its Android compatibility layer for the Steam Frame

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First look: Valve has open-sourced Lepton, the Android compatibility layer built for the Steam Frame headset, giving VR developers a way to bring existing Android games to the device without rebuilding them for an entirely different platform. The newly available code also offers a detailed look at how Valve tailors an Android environment for VR gaming on SteamOS, covering everything from graphics access to development and profiling tools.

The code is now available through Valve's GitLab repository.

The release follows the Steam Frame's launch and builds on Valve's March announcement of Lepton alongside the Steam Frame Verified certification requirements.

In purpose, the project resembles Proton, Valve's tool for running Windows games on SteamOS and Linux, though it takes a different technical route: rather than translating Windows software interfaces, Lepton provides a purpose-built,...

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