While learning about atmega programming a stumbled upon this: addition of support for ATmega328PB to gcc and avrdude.
How would you do changes like that in nix? I experimented with
fetchurl and overriding of
pkgs.pkgsCross.avr.buildPackages.gcc with something like
postInstall (but it doesn’t have any, therefore I could not override it). Would it be possible to add the
environment.etc, or is it something, that can be done only in