Add flake

.envrc

@@ -0,0 +1 @@
+use flake

flake.nix

@@ -0,0 +1,45 @@
+{
+	description = "Development environment for jbackup";
+
+	inputs = {
+		nixpkgs.url = "nixpkgs/nixos-unstable";
+		systems.url = "github:nix-systems/default";
+		flake-utils = {
+			url = "github:numtide/flake-utils";
+			inputs.systems.follows = "systems";
+		};
+	};
+
+	outputs = { nixpkgs, flake-utils, ... }:
+		flake-utils.lib.eachDefaultSystem (system:
+			let
+				pkgs = import nixpkgs { inherit system; };
+			in with pkgs; rec {
+				devShell = pkgs.mkShell {
+					packages = with pkgs; [
+						bashInteractive
+						yarn
+						git
+						go_1_23
+						go-task
+						gopls
+						golangci-lint
+						golangci-lint-langserver
+						nodejs
+						tmux
+						typescript
+						nodePackages.typescript-language-server
+						nodePackages.eslint
+					];
+				};
+
+				packages.manager = buildGo123Module {
+					name = "jbackup-manager";
+					src = lib.cleanSource ./.;
+					vendorHash = "sha256-SerSzcNfqGTzsygj44WSp5eKSoKiGDvyTDvBDzxX0r4=";
+				};
+
+				defaultPackage = packages.manager;
+			}
+		);
+}