  The search for robust topological superconductivity and Majorana bound states
continues, exploring both one-dimensional (1D) systems such as semiconducting
nanowires and two-dimensional (2D) platforms. In this work we study a 2D
approach based on graphene bilayers encapsulated in transition metal
dichalcogenides that, unlike previous proposals involving the Quantum Hall
regime in graphene, requires weaker magnetic fields and does not rely on
interactions. The encapsulation induces strong spin-orbit coupling on the
graphene bilayer, which opens a sizeable gap and stabilizes fragile pairs of
helical edge states. We show that, when subject to an in-plane Zeeman field,
armchair edges can be transformed into p-wave one-dimensional topological
superconductors by contacting them laterally with conventional superconductors.
We demonstrate the emergence of Majorana bound states (MBSs) at the sample
corners of crystallographically perfect flakes, belonging either to the D or
the BDI symmetry classes depending on parameters. We compute the phase diagram,
the resilience of MBSs against imperfections, and their manifestation as a
4$\pi$-periodic effect in Josephson junction geometries, all suggesting the
existence of a topological phase within experimental reach.
