  We present the open-source package openQ*D-1.0, which has been primarily, but
not uniquely, designed to perform lattice simulations of QCD+QED and QCD, with
and without C* boundary conditions, and O(a) improved Wilson fermions. The use
of C* boundary conditions in the spatial direction allows for a local and
gauge-invariant formulation of QCD+QED in finite volume, and provides a
theoretically clean setup to calculate isospin-breaking and radiative
corrections to hadronic observables from first principles. The openQ*D code is
based on openQCD-1.6 and NSPT-1.4. In particular it inherits from openQCD-1.6
several core features, e.g. the highly optimized Dirac operator, the locally
deflated solver, the frequency splitting for the RHMC, or the 4th order OMF
integrator.
