Yes

The projects that I know are using startup actions [1][2]. These are files that go into ~/Library/Preferences/pharo/ and define what has to be run on image startup. They areused to ���customize��� your image.

Yes but there are implicit. There are there but we do not see them and manipulate them if you see what I mean.
And there are static.
What I want to say also is that this is not the spying framework but the projects people work on.

Uko

[1]: https://github.com/RobertoMinelli/DFlow/blob/master/installDFlow.st
[2]: http://smalltalkhub.com/#!/~dalsat/ShoreLine-Reporter <http://smalltalkhub.com/#%21/%7Edalsat/ShoreLine-Reporter>