Install Etlas on your system
Download the etlas executable for your platform below.
On Safari the extension of the etlas binary is dms when it shouldn't have an extension at all. You can fix this by manually renaming the file to avoid the .dms extension.
If on Linux or OS X, give the program executable permissions.
$ chmod +x /path/to/etlas
Place the downloaded binary in in your $PATH and verify that it is.
$ etlas --version
Make sure java is on the $PATH.
$ java -version
Ensure that you have updated to the latest version of Eta.
$ etlas update $ etlas select latest
As soon as you start using etlas, eta and the standard libraries will be downloaded automatically for you on demand.