nixos-config/user/pkgs/ranger.nix

{ lib, pkgs, ... }:

{
  nixpkgs.overlays = [
    (self: super:
      {
        ranger = super.ranger.overrideAttrs (oldAttrs: rec {
        preConfigure = ''
          substituteInPlace ranger/__init__.py \
            --replace "DEFAULT_PAGER = 'less'" "DEFAULT_PAGER = '${lib.getBin pkgs.less}/bin/less'"
      
          # give image previews out of the box when building with w3m
          substituteInPlace ranger/config/rc.conf \
            --replace "set preview_images false" "set preview_images true"

          substituteInPlace ranger/ext/img_display.py \
            --replace "self.image_id -= 1" "self.image_id = max(0, self.image_id - 1)"
        '';
        });
      }
    )
  ];
}