Download and install the debian (.deb) package:
$ sudo dpkg -i <packagename>.deb
Download and install the RPM (.rpm) package.
rpm -i <packagename>.rpm
Download the <packagename>.zip
file and extract it.
Move the folder to your desired location.
Add the file path to an environment variable.
Download and install the latest docker image.
docker pull ghcr.io/n64-tools/gcc-toolchain-mips64:latest