This early work is specifically being done to support the “factories” where these devices are being produced and tested. Here are some snippets of what was found in the text:
Eventually, Fuchsia will be used as the operating system on devices when they are manufactured in factories
Having a generally working solution ready by 1H2023 so the solution is available for Fuchsia’s first factory build.
Based on the above, it would appear that Fuchsia’s JavaScript support needs to be finished in the first half of 2023 in order to meet a deadline, as a device powered by Fuchsia is going to be created in the very near future. That said, the question remains which device will that be? In the past few months, there have been rumors and indications in source code that it may be a speaker-equipped device.
If that is the case, it wouldn’t be crazy to speculate that this device could potentially be the upcoming Pixel Tablet and its dock, which was teased and announced at Google I/O. Although not meant to be noticed by users at all, the upgrade from Cast OS to Fuchsia remains to be a mystery as there are no noticeable front-facing features to speak of. However, it is newer code, open source, and not Linux based, for whatever that’s worth.