core/pkgs/by-name/bu/busybox/packages.nix

{ ... }:
res: pkgs: super:

with pkgs; {
  busybox = callPackage ./. { };
  busybox-sandbox-shell = callPackage ./sandbox-shell.nix {
    # musl roadmap has RISC-V support projected for 1.1.20
    busybox = if !stdenv.hostPlatform.isRiscV
    && !stdenv.hostPlatform.isLoongArch64 && stdenv.hostPlatform.libc
    != "bionic" then
      pkgsStatic.busybox
    else
      busybox;
  };
}