try to build diagrams-builder working with nix

diagrams-builder.nix

# Command
# nix-build diagrams-builder.nix 

# Error
#
# Setup: Encountered missing or private dependencies:
# haskell-src-exts ==1.22.*

# builder for '/nix/store/9mwklkck5gjjd0adk2jdkrm5zbhyy16b-haskell-src-exts-simple-1.22.0.0.drv' failed with exit code 1
# cannot build derivation '/nix/store/iw613czqivarhr12xbgj8rri7j4m0w8x-diagrams-builder.drv': 1 dependencies couldn't be built
# error: build of '/nix/store/iw613czqivarhr12xbgj8rri7j4m0w8x-diagrams-builder.drv' failed

# Code
let pkgs = import (fetchTarball "https://github.com/NixOS/nixpkgs-channels/archive/c71518e75bf067fb639d44264fdd8cf80f53d75a.tar.gz") {};
    my-haskell-src-exts =
      pkgs.haskellPackages.callHackageDirect 
        { pkg = "haskell-src-exts";
          ver = "1.22.0";
          sha256 = "0jwp8vhk3ncfxprbmg0jx001g7mh1kyp16973mjkjqz0d60zarwi";
        } {};
    my-haskell-src-exts-simple =
      pkgs.haskellPackages.callHackageDirect 
        { pkg = "haskell-src-exts-simple";
          ver = "1.22.0.0";
          sha256 = "1ixx2bpc7g6lclzrdjrnyf026g581rwm0iji1mn1iv03yzl3y215";
        } {};
    diagrams-postscript = 
      pkgs.haskellPackages.callHackageDirect 
        { pkg = "diagrams-postscript";
          ver = "1.4.1";
          sha256 = "0174y4s6rx6cckkbhph22ybl96h00wjqqkzkrcni7ylxcvgf37bd";
        } {};
in pkgs.diagrams-builder.overrideAttrs( _ : {
  haskell-src-exts = my-haskell-src-exts;
  haskell-src-exts-simple = my-haskell-src-exts-simple;
})

# other attempts below and research




# an attempt at https://github.com/NixOS/nixpkgs/issues/25887
# in pkgs.diagrams-builder.overrideAttrs(old: {
#   overrides = pkgs.lib.composeExtensions (old.overrides or (_: _: {})) (self: super: {});
# })


# (pkgs.diagrams-builder.overrideAttrs
#   (oldAttrs: {
#     haskell-src-exts = my-haskell-src-exts;
#     haskell-src-exts-simple = my-haskell-src-exts-simple;
#     diagrams-builder = 
#       pkgs.haskell.packages.ghc883.diagrams-builder.override( {
#         haskell-src-exts = my-haskell-src-exts;
#         haskell-src-exts-simple = my-haskell-src-exts-simple;
#       });
#   }))