A ring is von Neumann
regular in case for every $x\in R$ there is $y\in R$ such that $x=xyx$.
Von Neumann regular rings appear frequently as global localizations of
rings. Examples are the total quotient ring of a commutative domain,
the classical ring of quotients of a semiprime Goldie ring, the ring of
affiliated operators of a finite von Neumann algebra (which is an Ore
localization), the maximal ring of quotients of a nonsingular ring. In
a joint work with Miquel Brustenga, we show that, given a quiver $E$,
there is a suitable universal localization of the path algebra of the
quiver which is a von Neumann regular ring. We compute the structure of
the finitely generated projective modules of the von Neumann regular
rings arising from this construction.