libgl1-mesa-dri - 20.1.10-1pureos+librem5.1 main

This version of Mesa provides GLX and DRI capabilities: it is capable of
both direct and indirect rendering. For direct rendering, it can use DRI
modules from the libgl1-mesa-dri package to accelerate drawing.
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This package does not include the OpenGL library itself, only the DRI
modules for accelerating direct rendering.
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For a complete description of Mesa, please look at the
libglx-mesa0 package.