  Recent progress in understanding de Sitter spacetime in supergravity and
string theory has led to the development of a four dimensional supergravity
with spontaneously broken supersymmetry allowing for de Sitter vacua, also
called de Sitter supergravity. One approach makes use of constrained
(nilpotent) superfields, while an alternative one couples supergravity to a
locally supersymmetric generalization of the Volkov-Akulov goldstino action.
These two approaches have been shown to give rise to the same 4D action. A
novel approach to de Sitter vacua in supergravity involves the generalisation
of unimodular gravity to supergravity using a super-St\"uckelberg mechanism. In
this paper, we make a connection between this new approach and the previous two
which are in the context of nilpotent superfields and the goldstino brane. We
show that upon appropriate field redefinitions, the 4D actions match up to the
cubic order in the fields. This points at the possible existence of a more
general framework to obtain de Sitter spacetimes from high-energy theories.
