Download the latest modm-avr-gcc.tar.bz2 from Releases
and unpack it to /opt:
tar xf modm-avr-gcc.tar.bz2 --directory /optAdd the bin/ directory to your $PATH,
e.g. by adding the following line to your ~/.bashrc file:
export PATH="/opt/avr-gcc/bin:$PATH"There is a Github Actions job defined in .github/workflows/ which builds the
toolchain. For tagged commits, a Github release will be created with the
toolchain put into a downloadable .tar.bz2 at
Releases.