nbPkgs: self: super:
let
  inherit (self) callPackage;

  joinmarketPkg = pkg: callPackage pkg { inherit (nbPkgs.joinmarket) version src; };
  clightningPkg = pkg: callPackage pkg { inherit (nbPkgs) clightning; };

  unstable = (import ../nixpkgs-pinned.nix).nixpkgs-unstable;
in {
  bencoderpyx = callPackage ./bencoderpyx {};
  chromalog = callPackage ./chromalog {};
  coincurve = callPackage ./coincurve {};
  python-bitcointx = callPackage ./python-bitcointx { inherit (nbPkgs) secp256k1; };
  runes = callPackage ./runes {};
  sha256 = callPackage ./sha256 {};
  txzmq = callPackage ./txzmq {};
  urldecode = callPackage ./urldecode {};

  joinmarketbase = joinmarketPkg ./jmbase;
  joinmarketclient = joinmarketPkg ./jmclient;
  joinmarketbitcoin = joinmarketPkg ./jmbitcoin;
  joinmarketdaemon = joinmarketPkg ./jmdaemon;

  pyln-client = clightningPkg ./pyln-client;
  pyln-proto = clightningPkg ./pyln-proto;
  pyln-bolt7 = clightningPkg ./pyln-bolt7;
  pylightning = clightningPkg ./pylightning;

  # Don't mark `klein` as broken.
  # `klein` is fixed by using werkzeug 2.1.0 (see below)
  klein = super.klein.overrideAttrs (old: {
    meta = builtins.removeAttrs old.meta [ "broken" ];
  });

  ## Specific versions of packages that already exist in nixpkgs

  # cryptography 3.3.2, required by joinmarketdaemon
  # Used in the private python package set for joinmarket (../joinmarket/default.nix)
  cryptography_3_3_2 = callPackage ./specific-versions/cryptography {
    cryptography_vectors = callPackage ./specific-versions/cryptography/vectors.nix {};
  };

  # autobahn 20.12.3, required by joinmarketclient
  autobahn = callPackage ./specific-versions/autobahn.nix {};

  # werkzeug 2.1.0, required by jmclient (via pkg `klein`)
  werkzeug = callPackage ./specific-versions/werkzeug.nix {};

  # pyopenssl 20.0.1, required by joinmarketdaemon
  pyopenssl = callPackage ./specific-versions/pyopenssl.nix {};
}