flake.nix

@@ -1,5 +1,3 @@
-# ml2 ts=2 sts=2 sw=2
-
 {
   description = "A simple Go package";
 
@@ -24,14 +22,34 @@
       # Nixpkgs instantiated for supported system types.
       nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; });
 
-    in {
+    in
+    {
+
       # Provide some binary packages for selected system types.
       packages = forAllSystems (system:
         let
           pkgs = nixpkgsFor.${system};
         in
         {
-        tt = pkgs.callPackage ./nix/package.nix { version = version; };
+          tt = pkgs.buildGoModule {
+            pname = "tt";
+            inherit version;
+            # In 'nix develop', we don't need a copy of the source tree
+            # in the Nix store.
+            src = ./.;
+
+            # This hash locks the dependencies of this package. It is
+            # necessary because of how Go requires network access to resolve
+            # VCS.  See https://www.tweag.io/blog/2021-03-04-gomod2nix/ for
+            # details. Normally one can build with a fake hash and rely on native Go
+            # mechanisms to tell you what the hash should be or determine what
+            # it should be "out-of-band" with other tooling (eg. gomod2nix).
+            # To begin with it is recommended to set this, but one must
+            # remember to bump this hash when your dependencies change.
+            # vendorHash = pkgs.lib.fakeHash;
+
+            vendorHash = "sha256-cpjMZr+kP+XyXRxK4YI/lGHl97IROFVVz8DrID0vi6E=";
+          };
         });
 
       # Add dependencies that are only needed for development

nix/default.nix

@@ -1,4 +0,0 @@
-# ml2 ts=2 sts=2 sw=2
-
-with import <nixpkgs> {};
-{version ? "HEAD"}: callPackage ./package.nix {inherit version;}

nix/package.nix

@@ -1,21 +0,0 @@
-# ml2 ts=2 sts=2 sw=2
-{buildGoModule, version ? "HEAD"}: buildGoModule {
-  pname = "tt";
-  inherit version;
-
-  # In 'nix develop', we don't need a copy of the source tree
-  # in the Nix store.
-  src = ./..;
-
-  # This hash locks the dependencies of this package. It is
-  # necessary because of how Go requires network access to resolve
-  # VCS.  See https://www.tweag.io/blog/2021-03-04-gomod2nix/ for
-  # details. Normally one can build with a fake hash and rely on native Go
-  # mechanisms to tell you what the hash should be or determine what
-  # it should be "out-of-band" with other tooling (eg. gomod2nix).
-  # To begin with it is recommended to set this, but one must
-  # remember to bump this hash when your dependencies change.
-  # vendorHash = pkgs.lib.fakeHash;
-
-  vendorHash = "sha256-cpjMZr+kP+XyXRxK4YI/lGHl97IROFVVz8DrID0vi6E=";
-}