builtins.fetchTarball incurs an Input From Derivation sequential penalty
Switching builtins.fetchTarball for pkgs.fetchzip provides feature parity without the IFD penalty see https://ryantm.github.io/nixpkgs/builders/fetchers/#fetchurl
Despite the name, fetchzip is not limited to .zip files and can also be used with any tarball
builtins.fetchTarballincurs an Input From Derivation sequential penaltySwitching
builtins.fetchTarballforpkgs.fetchzipprovides feature parity without the IFD penalty see https://ryantm.github.io/nixpkgs/builders/fetchers/#fetchurl