We need to install rosette, a modified version of Halide and LLVM >= 12.0 for Hydride. The simplest way to do this is to run the setup.py script in the root directory. This will install all the aforementioned dependencies, and let you know if you are missing any prereqs.
Hydride uses a lot of environment variables for Halide as well as some of our Makefiles. Feel free to add these exports to your ~/.bashrc.
export HYDRIDE_ROOT=<path to your Hydride root directory>
export HALIDE_ROOT=$HYDRIDE_ROOT/halide-hydride
export HALIDE_DISTRIB=$HALIDE_ROOT/distrib
export BUILD_DIR=$HALIDE_ROOT/llvm-build
export LLVM_ROOT=$BUILD_DIR
export LLVM_CONFIG=$LLVM_ROOT/bin/llvm-config