Initial push

.envrc

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+use flake

flake.nix

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+{
+	description = "chess_interface Development Environment";
+
+	inputs = {
+		nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";	
+		rust-overlay.url = "github:oxalica/rust-overlay";
+		flake-utils.url = "github:numtide/flake-utils";
+	};
+
+	outputs = { self, nixpkgs, rust-overlay, flake-utils, ... }:
+		let
+			system = "x86_64-linux";
+			overlays = [ (import rust-overlay) ];
+			pkgs = import nixpkgs {
+				inherit system overlays;
+			};
+		in {
+			devShells."${system}".default = let
+				pkgs = import nixpkgs { inherit system; };
+			in pkgs.mkShell {
+					packages = with pkgs; [
+						rustc
+						cargo
+						rust-analyzer
+						postgresql
+						adminer
+					];
+					shellHook = ''
+				cargo build
+				echo "Welcome to the chess_interface development environment!"
+				echo "Available commands:"
+				echo "  - To start PostgreSQL: sudo service postgresql start"
+				echo "  - To access Adminer: adminer --server localhost --username your_username --db your_database"
+					'';
+				};
+		};
+}