Convert default.nix as legacy wrapper for flake.nix

default.nix

@@ -1,48 +1,7 @@
-{ compiler ? "ghc8107"
-, rev      ? "7a94fcdda304d143f9a40006c033d7e190311b54"
-, sha256   ? "0d643wp3l77hv2pmg2fi7vyxn4rwy0iyr8djcw1h5x72315ck9ik"
-, pkgs     ?
-    import (builtins.fetchTarball {
-      url    = "https://github.com/NixOS/nixpkgs/archive/${rev}.tar.gz";
-      inherit sha256; }) {
-      config.allowBroken = false; # autodocodec
-      config.allowUnfree = true;
-    }
-, mkDerivation ? null
-}:
-let gitignoreSrc = import (pkgs.fetchFromGitHub {
-      owner = "hercules-ci";
-      repo = "gitignore";
-      rev = "9e80c4d83026fa6548bc53b1a6fab8549a6991f6";
-      sha256 = "04n9chlpbifgc5pa3zx6ff3rji9am6msrbn1z3x1iinjz2xjfp4p";
-    }) {};
-in
-pkgs.haskell.packages.${compiler}.developPackage {
-  name = builtins.baseNameOf ./.;
-  root = gitignoreSrc.gitignoreSource ./.;
-
-  overrides = self: super: with pkgs.haskell.lib; {
-    configuration-tools = self.callHackageDirect {
-      pkg = "configuration-tools";
-      ver = "0.6.1";
-      sha256 = "0vrml1gj6bb5f6x79m80k9wqn5qvjjzz8c6gf36mqwdqv30irxdv";
-    } {};
-
-    streaming-events = doJailbreak (self.callHackageDirect {
-      pkg = "streaming-events";
-      ver = "1.0.1";
-      sha256 = "11v9rrhvlxlq43m5pw63hdfn6n0fkqryphvplild1y920db96wk9";
-    } {});
-
-    autodocodec = markUnbroken super.autodocodec;
-    validity-aeson = markUnbroken super.validity-aeson;
-  };
-  source-overrides = {
-  };
-  modifier = drv: pkgs.haskell.lib.overrideCabal drv (attrs: {
-    buildTools = (attrs.buildTools or []) ++ [
-      pkgs.haskell.packages.${compiler}.cabal-install
-      pkgs.haskell.packages.${compiler}.ghcid
-    ];
-  });
-}
+(import (
+  fetchTarball {
+    url = "https://github.com/edolstra/flake-compat/archive/12c64ca55c1014cdc1b16ed5a804aa8576601ff2.tar.gz";
+    sha256 = "0jm6nzb83wa6ai17ly9fzpqc40wg1viib8klq8lby54agpl213w5"; }
+) {
+  src =  ./.;
+}).defaultNix.packages.${builtins.currentSystem}.default