From 6351b4791f5db6dde06fe852a2f22da7ab4ae566 Mon Sep 17 00:00:00 2001
From: Dominic Egginton <dominic.egginton@gmail.com>
Date: Sun, 1 Sep 2024 10:44:40 +0100
Subject: [PATCH 1/2] chore: update nix shell

---
 flake.nix | 18 ++++++++----------
 shell.nix |  8 ++------
 2 files changed, 10 insertions(+), 16 deletions(-)

diff --git a/flake.nix b/flake.nix
index 9531586..fafc6e8 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,24 +2,22 @@
   inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
   inputs.flake-utils.url = "github:numtide/flake-utils";
 
-  outputs =
-    { self
-    , nixpkgs
-    , flake-utils
-    ,
-    }:
+  outputs = { nixpkgs, flake-utils, ... }:
 
-      with flake-utils.lib;
+    with flake-utils.lib;
 
-      eachDefaultSystem (system:
+    eachDefaultSystem (system:
 
       let
-        pkgs = import nixpkgs { inherit system; };
+        pkgs = import nixpkgs {
+          inherit system;
+          overlays = [ (final: _: { nanoseconds = final.callPackage ./. { }; }) ];
+        };
       in
 
       {
         formatter = pkgs.nixpkgs-fmt;
-        packages.default = pkgs.callPackage ./default.nix { };
+        packages.default = pkgs.nanoseconds;
         devShells.default = pkgs.callPackage ./shell.nix { };
       });
 }
diff --git a/shell.nix b/shell.nix
index 0ec8561..558e6f2 100644
--- a/shell.nix
+++ b/shell.nix
@@ -3,10 +3,6 @@
 pkgs.mkShell.override { inherit (swift) stdenv; }
 
 {
-  buildInputs = with pkgs; [
-    swift
-    swiftPackages.Foundation
-    swiftpm
-    swiftpm2nix
-  ];
+  inputsFrom = [ pkgs.nanoseconds ];
+  packages = [ pkgs.swiftpm2nix ];
 }

From 91f6ff363c5b3495a9ea5c1d3abdb949049287dc Mon Sep 17 00:00:00 2001
From: Dominic Egginton <dominic.egginton@gmail.com>
Date: Sun, 1 Sep 2024 11:12:29 +0100
Subject: [PATCH 2/2] chore: add example

---
 Package.swift              | 3 ++-
 Sources/Example/main.swift | 8 ++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)
 create mode 100644 Sources/Example/main.swift

diff --git a/Package.swift b/Package.swift
index b41e049..24e1f81 100644
--- a/Package.swift
+++ b/Package.swift
@@ -8,6 +8,7 @@ let package = Package(
     ],
     targets: [
         .target(name: "Nanoseconds"),
-        .testTarget(name: "NanosecondsTests", dependencies: ["Nanoseconds"])
+        .testTarget(name: "NanosecondsTests", dependencies: ["Nanoseconds"]),
+        .target(name: "Example", dependencies: ["Nanoseconds"])
     ]
 )
diff --git a/Sources/Example/main.swift b/Sources/Example/main.swift
new file mode 100644
index 0000000..7bab4af
--- /dev/null
+++ b/Sources/Example/main.swift
@@ -0,0 +1,8 @@
+import Foundation
+import Nanoseconds
+
+let start = Now()
+sleep(1)
+let end = Now()
+let duration = end - start
+print(duration)