“…Renault's reconstruction theorem is of particular importance to the classification program for C*-algebras, given Li's recent article [29] showing that every simple classifiable C*-algebra has a Cartan subalgebra (and is therefore a twisted groupoid C*-algebra), and the work of Barlak and Li [7,8] describing the connections between the UCT problem and Cartan subalgebras in C*-algebras. The increasing interest in twisted groupoid C*-algebras (see, for instance, [3,6,10,11,15,16,17,23]) has also recently inspired the introduction of twisted Steinberg algebras, which are a purely algebraic analogue of twisted groupoid C*-algebras (see [4,5]).…”