cache file dir: where the downloaded files are stored.

Get download thread num.

Prepares request.Fetcher for URL.

reverse proxy.

This directory is for storing sdk installation config files.

install/{sdkname}.toml file.

sdk-list.version.json.

Temp directory is for unarchiving sdk files.

{sdkname}.version.json file.

versions dir: where the versions are installed.

vmr conf file path.

vmr work dir: where vmr is installed.

Envs */.

Envs */.

Envs */.

Envs */.

Envs */.

Envs */.

============================== vmr config file.