  One of the general strategies for realizing a wide class of interacting QFTs
is via junctions and intersections of higher-dimensional bulk theories. In the
context of string/M-theory, this includes many $D > 4$ superconformal field
theories (SCFTs) coupled to an IR free bulk. Gauging the flavor symmetries of
these theories and allowing position dependent gauge couplings provides a
general strategy for realizing novel higher-dimensional junctions of theories
coupled to localized edge modes. Here, we show that M-theory on singular,
asymptotically conical $G_2$-holonomy orbifolds provides a general template for
realizing strongly coupled 5D bulk theories with 4D $\mathcal{N} = 1$ edge
modes. This geometric approach also shows how bulk generalized symmetries are
inherited in the boundary system.
