Init direnv and flake.nix

.envrc

@@ -0,0 +1,3 @@
+#source_url "https://raw.githubusercontent.com/cachix/devenv/82c0147677e510b247d8b9165c54f73d32dfd899/direnvrc" "sha256-7u4iDd1nZpxL4tCzmPG0dQgC5V+/44Ba+tHkPob1v2k="
+#use devenv
+use flake

flake.nix

@@ -0,0 +1,41 @@
+{
+  description = "Lifetracker";
+
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+  inputs.flake-utils.url = "github:numtide/flake-utils";
+
+  outputs =
+    { nixpkgs, flake-utils, ... }:
+    flake-utils.lib.eachDefaultSystem (
+      system:
+      let
+        inherit (pkgs.lib) optional optionals;
+        pkgs = import nixpkgs { inherit system; };
+
+      in
+      with pkgs;
+      {
+        devShell = pkgs.mkShell {
+          buildInputs =
+            [
+              bashInteractive
+              glibcLocales
+              git
+              nodejs
+              pnpm
+              postgresql
+              netlify-cli
+            ]
+            ++ optional stdenv.isLinux inotify-tools
+            ++ optional stdenv.isDarwin terminal-notifier
+            ++ optionals stdenv.isDarwin (
+              with darwin.apple_sdk.frameworks;
+              [
+                CoreFoundation
+                CoreServices
+              ]
+            );
+        };
+      }
+    );
+}