You are correct in your assumption. The idea is that you can have more
installed tools than active ones.
However, sadly, for the main SDK itself we don't support side-by-side
installation of versions and only one version can be installed at time
(because they all live in the same "upstream" direc
I guess it's completely unclear to me what `emsdk install` vs. `emsdk
activate` do exactly. My naive understanding had been that I could
`emsdk install` various versions of the emsdk, and then `emsdk activate`
one or another of those that I have installed. But my mental model
doesn't seem to
