The install script sets the environment variable and adds $DENO_INSTALL/bin to user's path.

I thought it would be used by Deno's binary, and had a look at the Deno manual. There was only DENO_INSTALL_ROOT.

So it's used by dvm itself. However, the Deno binaries are installed to $DVM_DIR/bin. Neither could I find any lines in the source code that read / write the environment DENO_INSTALL.

Thanks for your reply.