# Dashboard Core — QM/MM

Real Hellmann-Feynman nuclear forces and a real Velocity-Verlet MD step
for this project's molecule catalog — no fabricated geometry, no
placeholder forces. Backs Composer's QM/MM force and MD-trajectory
panels.

::: dashboard_core.qmmm

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**See also**: [`dashboard_core.hamiltonians`](dashboard_core_hamiltonians.md)
for `MOLECULE_CATALOG` and `build_molecular_hamiltonian`, which this
module's forces are derived from.