Last updated at 6:38 pm UTC on 9 September 2019
After a download of a prisine Squeak image you need to issue the following command as a prerequisite for many package installations
It is mentioned under Squeak Help / Extending the System but might not be so obvious to spot.
This will get you the Metacello tools.
This also gives you the filetree repository type to put on github.
Note: The result of this command loads a tutorial into the help file which is completely out of date.