What is your suggestion?

One-line script to install the binary and move to path, or install from a package

Why do you want this feature?

Faster time to first workspace

Are there any workarounds to get this functionality today?

Plenty, such asdocker-compose or downloading the binary yourself. Related#1554

Are you interested in submitting a PR for this?

Yes. Some work already exists in theinstallscript branch