  We show how a generalized kind of chiral symmetry can be used to construct
highly-efficient reservoir engineering protocols for bosonic lattices. These
protocols exploit only a single squeezed reservoir coupled to a single lattice
site; this is enough to stabilize the entire system in a pure, entangled steady
state. Our approach is applicable to lattices in any dimension, and does not
rely on translational invariance. We show how the relevant symmetry operation
directly determines the real space correlation structure in the steady state,
and give several examples that are within reach in several one and two
dimensional quantum photonic platforms.
