  In this paper we construct smooth, non-radial solutions of the compressible
Euler and Navier-Stokes equation that develop an imploding finite time
singularity. Our construction is motivated by the works [Merle, Rapha\"{e}l,
Rodnianski, and Szeftel, Ann. of Math., 196(2):567-778, 2022, Ann. of Math.,
196(2):779-889, 2022], [Buckmaster, Cao-Labora, and G\'{o}mez-Serrano,
arXiv:2208.09445, 2022], but is flexible enough to handle both periodic and
non-radial initial data.
