Remove nix2container from flake, update dev shell config

.gitignore

@@ -5,4 +5,6 @@ bin/
 /Dockerfile
 /docker-stack.yml
 .stack-work/
+*.swp
+dist*
 *~

TODO

@@ -1 +0,0 @@
-- Make the Docker images much smaller

flake.lock

@@ -18,56 +18,7 @@
         "type": "github"
       }
     },
-    "flake-utils_2": {
-      "locked": {
-        "lastModified": 1653893745,
-        "narHash": "sha256-0jntwV3Z8//YwuOjzhV2sgJJPt+HY6KhU7VZUL0fKZQ=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "1ed9fb1935d260de5fe1c2f7ee0ebaae17ed2fa1",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
-    "nix2container": {
-      "inputs": {
-        "flake-utils": "flake-utils_2",
-        "nixpkgs": "nixpkgs"
-      },
-      "locked": {
-        "lastModified": 1677791117,
-        "narHash": "sha256-zL4Fc5133KMqX7zCzcPODaBPEblUfgQt2UccNBm34Pc=",
-        "owner": "nlewo",
-        "repo": "nix2container",
-        "rev": "85670cab354f7df69dd4af097c27cf9bc5826cb2",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nlewo",
-        "repo": "nix2container",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
-      "locked": {
-        "lastModified": 1677612629,
-        "narHash": "sha256-yC+9LfhfwOd5sXFW8TLnDmqVMNYiHXYPGy9BbdpRqfU=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "111ca8e0378e88d9decaa1c6dd7597f35d8bc67f",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_2": {
       "locked": {
         "lastModified": 1683159243,
         "narHash": "sha256-Fh41KQcZTswb4NyYfSsbNEhDS/Im0/Id6m3k7qZ6/Xw=",
@@ -85,8 +36,7 @@
     "root": {
       "inputs": {
         "flake-utils": "flake-utils",
-        "nix2container": "nix2container",
+        "nixpkgs": "nixpkgs"
-        "nixpkgs": "nixpkgs_2"
       }
     },
     "systems": {

flake.nix

@@ -4,25 +4,21 @@
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs";
     flake-utils.url = "github:numtide/flake-utils";
-    nix2container.url = "github:nlewo/nix2container";
   };
 
-  outputs = { self, nixpkgs, flake-utils, nix2container }:
+  outputs = { self, nixpkgs, flake-utils }:
     flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs              = nixpkgs.legacyPackages.${system};
         packageName       = "purr";
         dockerPackageName = "${packageName}-docker";
 
-        nix2containerPkgs = nix2container.packages.x86_64-linux;
-
         haskellPackages = pkgs.haskellPackages;
 
         enableSharedExecutables = false;
         enableSharedLibraries = false;
 
         purr = pkgs.haskell.lib.justStaticExecutables self.packages.${system}.default;
-
       in {
 
         packages.${packageName} =
@@ -35,10 +31,10 @@
           buildInputs = with pkgs; [
             ghcid
             cabal-install
+            ghc
           ];
-          inputsFrom = map (__getAttr "env") (__attrValues self.packages.${system});
+          inputsFrom = builtins.attrValues self.packages.${system};
         };
-
         devShell = self.devShells.${system}.default;
 
         packages.${dockerPackageName} = pkgs.dockerTools.buildImage {