4 files changed, 56 insertions, 18 deletions
diff --git a/2023/Go/.envrc b/2023/Go/.envrc
index 0a722d7..3550a30 100644
--- a/2023/Go/.envrc
+++ b/2023/Go/.envrc
@@ -1 +1 @@
-use nix;
+use flake
diff --git a/2023/Go/flake.lock b/2023/Go/flake.lock
new file mode 100644
index 0000000..b7695d9
--- /dev/null
+++ b/2023/Go/flake.lock
@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1741010256,
+        "narHash": "sha256-WZNlK/KX7Sni0RyqLSqLPbK8k08Kq7H7RijPJbq9KHM=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "ba487dbc9d04e0634c64e3b1f0d25839a0a68246",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/2023/Go/flake.nix b/2023/Go/flake.nix
new file mode 100644
index 0000000..39dda89
--- /dev/null
+++ b/2023/Go/flake.nix
@@ -0,0 +1,28 @@
+{
+  description = "Advent of Code 2023: Go";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
+  };
+
+  outputs =
+    { nixpkgs, ... }:
+    let
+      pkgs = nixpkgs.legacyPackages.x86_64-linux;
+    in
+    {
+      devShells.x86_64-linux.default = pkgs.mkShell {
+        # build tools
+        nativeBuildInputs = with pkgs; [
+          go
+        ];
+        # dependencies
+        buildInputs = with pkgs; [
+          delve
+          gopls
+          gotools
+          golangci-lint
+        ];
+      };
+    };
+}
diff --git a/2023/Go/shell.nix b/2023/Go/shell.nix
deleted file mode 100644
index 9573d44..0000000
--- a/2023/Go/shell.nix
+++ /dev/null
@@ -1,17 +0,0 @@
-{
-  pkgs ? import <nixpkgs> { },
-}:
-
-pkgs.mkShell {
-  # build tools
-  nativeBuildInputs = with pkgs; [
-    go
-  ];
-  # dependencies
-  buildInputs = with pkgs; [
-    delve
-    gopls
-    gotools
-    golangci-lint
-  ];
-}