Testing is underway 
I needed some small changes, so in the spirit of open source, i opened a PR - Fix headless WebGPU external-image uploads by RaananW · Pull Request #1 · knervous/shado · GitHub . Main thing i neded was for copyExternalImageToTexture to honor flipY.
If you want to follow the work on the babylon lite side - test: run parity scenes headlessly with Shado by RaananW · Pull Request #655 · BabylonJS/Babylon-Lite · GitHub
Aha yeah that might be lite specific, and nice, good stuff! I will keep following your PR. I merged yours and published 1.8.1. As long as changes are scoped in that path I have no issue getting things moved in and bumped as needed
I will be a nice netizen and will file issues or PRs whenever I can. I hope i’m not too annoying
Like this - Support WebGPU `primitive-index` in the headless GPU backend · Issue #2 · knervous/shado · GitHub
This is a use case I had awhile back for high performance large volume of moving 2d sprites that need to be tracked with custom attributes for motion, labels, etc etc. Already had a lean implementation but took it to completion through the API
Here’s 2 million resident and rendering
Available in latest version npm i @knervous/shado@1.10.0 - change log and docs updated for the 2d api
That’s… no words 
I really need to play with this