day1

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>

flake.nix

@@ -0,0 +1,31 @@
+{
+  description = "AoC 2022 in Haskell";
+
+  inputs = {
+    nixpkgs.url = github:nixos/nixpkgs/release-22.05;
+    utils.url = github:numtide/flake-utils;
+  };
+
+  outputs = { self, nixpkgs, utils }:
+    utils.lib.eachDefaultSystem
+      (system:
+        let
+          pkgs = import nixpkgs {
+            inherit system;
+          };
+        in
+        {
+          devShells = with pkgs; rec {
+            default = mkShell {
+              buildInputs = [ ghc ];
+            };
+            withLsp = mkShell {
+              buildInputs = [
+                ghc
+                haskell-language-server
+              ];
+            };
+          };
+        }
+      );
+}