  We introduce the SmoQyDQMC.jl package, a Julia implementation of the
determinant quantum Monte Carlo algorithm. SmoQyDQMC.jl supports generalized
tight-binding Hamiltonians with on-site Hubbard and generalized electron-phonon
interactions, including non-linear $e$-ph coupling and anharmonic lattice
potentials. Our implementations use hybrid Monte Carlo methods with exact
forces for sampling the phonon fields, enabling efficient simulation of
low-energy phonon branches, including acoustic phonons. The SmoQyDQMC.jl
package also uses a flexible scripting interface, allowing users to adapt it to
different workflows and interface with other software packages in the Julia
ecosystem. The code for this package can be downloaded from our GitHub
repository at https://github.com/SmoQySuite/SmoQyDQMC.jl or installed using the
Julia package manager. The online documentation, including examples, can be
obtained from our document page at
https://smoqysuite.github.io/SmoQyDQMC.jl/stable/.
