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I got this in Firefox on Linux, just had to enable WebGPU in about:config (`dom.webgpu.enabled` = true).
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Did not know that existed, I enabled it but no luck. Must be a NetBSD thing based upon this new message:

> WebGPU is not yet available in Release or late Beta builds.

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If you are using brave (which i assume also applies to chrome) , there is a menu at brave://flags , you can enable unsafe web GPU from there
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