The following:

(Installer squeaksource
    project: 'MetacelloRepository';
    packagesMatching: 'ConfigurationOfMagritte2-*') first install.


ConfigurationOfMagritte2 project latestVersion load.


Results in: Error: could not resolv Magritte-Model [Magritte-Model-lr.397]

Then, the site: source.lukas-renggli.ch returns:

Service Temporarily Unavailable

The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.


Apache/2.2.14 (Ubuntu) Server at source.lukas-renggli.ch Port 80