  Improving the understanding of the processes governing small-scale nonlinear
clustering is a necessary task for interpreting upcoming high-quality
cosmological data, as it will allow one to break degeneracies and obtain tight
neutrino mass and warm dark matter constraints from large-scale structure
probes. The Sejong Suite, an extensive collection of state-of-the-art
high-resolution cosmological hydrodynamical simulations, has been intended with
this primary goal in mind. Spanning a large number of cosmological and
astrophysical parameters (especially suitable for the dark sector), and
organized into three main categories (Grid Suite, Supporting Suite, and
Systematics Suite), the release may be useful for a broader variety of
cosmological and astrophysical purposes - while primarily developed for
Lyman-Alpha (LyA) forest studies. In particular, the overall architecture of
the Grid Suite has been designed to achieve an equivalent resolution up to
3x3328^3=110 billion particles in a 100 Mpc/h box, corresponding to a 30 kpc/h
mean grid resolution, which ensures convergence on LyA flux statistics closer
to the desired 1.0% level that data from surveys such as the Dark Energy
Spectroscopic Instrument (DESI) will provide. Here, we briefly highlight the
main characteristics, improvements, and novelties of the Sejong Suite, as well
as ongoing and future applications.
