Hand-built Janus 1T-MoSH monolayer initial structure. P3m1 (Janus-broken P-3m1), a=3.18 A, 20 A vacuum; S at (1/3,2/3,+1.561 A), H at (2/3,1/3,-0.70 A) from the 1T-MoS2 prototype. Validated: 3 sites, ordered, Mo-S 2.410 A, Mo-H 1.965 A, frac coords in range.