His work approaches memory not as a fixed archive, but as something coded, fractured, and rewritten. Through simple, repetitive actions and material metaphors, using wood, motors, printers, and paper, he questions the national imaginary and the ways history is inscribed, erased, and reactivated. Rather than illustrating the past, his pieces interrupt it, generating tension and reflection as tools for thinking the present and imagining possible futures.
Vaca has presented his work internationally and has taken part in key platforms like the International Image Festival and ISEA. His voice also resonates in academic and editorial contexts, contributing to publications like Errata# and Cronopio. A recipient of several national and international distinctions, he moves fluidly between the gallery, the archive, and the screen, making visible the invisible threads that connect memory, media, and territory.