How to have several toolchain versions on the same machine?

[yanshay]

When I install a toolchain it looks like previous one is removed. I need to have two running at the same time for different projects.
is there a way to make it using espup? If not how can I do that in another way?

[SergioGasquez]

You could use the -a/--name argument, that is, you could do:

espup install
espup install --name xtensa ---toolchain-version 1.86.0.0

Which would result in having 2 Xtensa Rust toolchains isntalled under $HOME/.rustup/toolchains, one with the latest toolchain named esp and another one with 1.86.0.0 named xtensa. You could use the xtensa toolchain in any of your projects with any overriding method