zn_poly is a C library for polynomial arithmetic in Z/nZ[x], where n is any modulus that fits into an unsigned long.
conda install -c conda-forge zn_poly
conda install -c conda-forge/label/gcc7 zn_poly
conda install -c conda-forge/label/cf201901 zn_poly
conda install -c conda-forge/label/cf202003 zn_poly