RUN wget https://github.com/open-tool-forge/fpga-toolchain/releases/download/nightly-${FPGA_TOOLCHAIN_DATE}/fpga-toolchain-linux_x86_64-nightly-${FPGA_TOOLCHAIN_DATE}.tar.xz
RUN tar -C /opt -xf fpga-toolchain-linux_x86_64-nightly-${FPGA_TOOLCHAIN_DATE}.tar.xz &&\
RUN wget --quiet https://github.com/xpack-dev-tools/riscv-none-embed-gcc-xpack/releases/download/v${RISCV_TOOLCHAIN_VER}/xpack-riscv-none-embed-gcc-${RISCV_TOOLCHAIN_VER}-linux-x64.tar.gz
RUN tar -C /opt -xf /xpack-riscv-none-embed-gcc-${RISCV_TOOLCHAIN_VER}-linux-x64.tar.gz &&\