libvulkan-dev 1.2.131.2-1 (armhf binary) in ubuntu focal

 The Loader implements the main VK library. It handles layer management and
 driver management. The loader fully supports multi-gpu operation. As part of
 this, it dispatches API calls to the correct driver, and to the correct
 layers, based on the GPU object selected by the application.
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 This package includes files needed for development.