This is now ready. Sample run: https://github.com/saghul/quickjs/releases/tag/v0.1.2

The workflow is:

• Create a new release on GH and use a tag name of the form vX.Y.Z
• The release must NOT be a draft release
• The release GH action will run and upload the artifacts to the existing release
• Profit!

I don't see a very good place to put the LATEST.json file and since jsvu also works with the GH API I'll go with that first.