  We are improving one of the available lattice software packages HiRep by
adding GPU acceleration supporting highly-optimized simulations on both NVIDIA
and AMD GPUs. HiRep allows lattice simulations of theories with fermions in
higher representations and a variable number of colors in the gauge group. The
development is accompanied by an overall software quality improvement in the
build system, testing, and documentation, adding features for both CPUs and
GPUs. The software is available under https://github.com/claudiopica/HiRep
