A deep dive into how Microlink renders WebGL screenshots on a GPU-less fleet: the ANGLE delegation chain, why SwiftShader is slow, how Mesa llvmpipe JIT-compiles the pipeline with LLVM, the Xvfb surface requirement, and the silent 2D fallback we guard against in CI.
How one Chrome flag made GPU-less WebGL screenshots 4× faster
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June 29, 2026
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microlink-io