Where is Plume currently running for real?

Plume has been started as a thin-client infrastructure for the elementary school La Futaie in Boisfort, Brussels.

Later, it has been used in the Foyer Scientifique et Culturel de la Plaine of ULB (the Free University of Brussels).

It is now used in a formation room at Dokeos in Brussels, and at Institut Communal Marius Renard in Anderlecht, Brussels.

It is still running on every place it has been once, isn't that a proof by itself?