{
  config,
  pkgs,
  lib,
  ...
}:
with builtins // lib;
let
  pocketbooksync = pkgs.fetchzip {
    url = "https://github.com/ckilb/pocketbooksync.koplugin/releases/download/v1.0.2/pocketbooksync.koplugin-v1.0.2.zip";
    hash = "sha256-Up6tYirqiWLsTpUQhbxf9+rvC3SqBoVAck1m2qo2AB4=";
  };
  coverprogresspocketbook = pkgs.fetchzip {
    url = "https://github.com/apastuszak/coverprogresspocketbook.koplugin/releases/download/v1.21/coverprogresspocketbook.koplugin.zip";
    hash = "sha256-OuAwBCY2B6E9vPwqPWNPXllqyralAlQOSvCLRjfcwAI=";
  };
  wifi = pkgs.fetchFromGitHub {
    owner = "Lomig";
    repo = "koreader-pocketbook-wifi";
    rev = "1278fe9";
    hash = "sha256-foQ6tqrSWuRCd97cc1jr+Md7rVQH9pkfgGM3V2y0a5k=";
  };

in
{
  koreader.flavor = "pocketbook";

  plugins = {
    inherit pocketbooksync;
  };

  patchDirectories = [
    "${wifi}/patches"
  ];

  dictionaries = {
    Wiktionary = fetchTarball {
      url = "https://github.com/xxyzz/wiktionary_stardict/releases/download/20261020/en-en.tar.zst";
      sha256 = "sha256-dA/7ARC1S9drNUmwHdvYflj1q/k48TQlu3HfEQbVQJc=";
    };
    GNU = pkgs.fetchzip {
      url = "http://tovotu.de/data/stardict/gcide.zip";
      hash = "sha256-/HKqAaM5KCj8jYoYLl+1a4qQb3xK4DUB9rl/Xe9Sb9Y=";
    };
  };

  fonts = {
    Alegreya = "${pkgs.alegreya}/share/fonts/truetype";
    ComputerModern = "${pkgs.cm_unicode}/share/fonts/opentype";
  };
}