  Guided by the naturalness criterion for an exponentially small cosmological
constant, we present a string theory motivated 4-dimensional $\mathcal{N}=1$
non-linear supergravity model (or its linear version with a nilpotent
superfield) with spontaneous supersymmetry breaking. The model encompasses the
minimal supersymmetric standard model, the racetrack K\"ahler uplift, and the
KKLT anti-$\rm D3$-branes, and use the nilpotent superfield to project out the
undesirable interaction terms as well as the unwanted degrees of freedom to end
up with the standard model (not the supersymmetric version) of strong and
electroweak interactions.
