I want to execute this in the context of Pharo, was initially for Squeak.
Installer squeaksource
project: 'MetacelloRepository';
install: 'ConfigurationOfMagritte2'.
(Smalltalk at: #ConfigurationOfMagritte2) project latestVersion load: 'Magritte-Seaside'.
This code will work:
Gofer new
squeaksource: 'MetacelloRepository';
configurationOf: 'Magritte2';
load.
(Smalltalk at: #ConfigurationOfMagritte2) project latestVersion load: 'Magritte-Seaside'.
There are other ways, but this is the most "direct" translation :)