diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..a5dbbcb
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake .
diff --git a/.gitignore b/.gitignore
index 576f200..7f244a2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,12 @@
 **/target
+.DS_Store
 
+.env
+.vscode
+.idea
+**/.~lock*
+**/.npmrc
+**/.envrc
+**/.direnv
+
+result
diff --git a/README.md b/README.md
index 145c60a..f27e605 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ cargo install --git https://github.com/tacogips/async-graphql-reverse --branch m
 ### usage
 
 ```
-async-graphql-reverse 0.5.0
+async-graphql-reverse 0.6.0
 tacogips
 
 USAGE:
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..d2ae745
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,121 @@
+{
+  "nodes": {
+    "crane": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1704819371,
+        "narHash": "sha256-oFUfPWrWGQTZaCM3byxwYwrMLwshDxVGOrMH5cVP/X8=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "5c234301a1277e4cc759c23a2a7a00a06ddd7111",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ipetkov",
+        "repo": "crane",
+        "type": "github"
+      }
+    },
+    "fenix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "rust-analyzer-src": "rust-analyzer-src"
+      },
+      "locked": {
+        "lastModified": 1705472611,
+        "narHash": "sha256-o9zxn4OPM6ltNmsiIK4Fl1k6aIF73x2wELGeCQYdO0k=",
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "39ef99bcc06101639781bdb5dd69155b7033badd",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1705309234,
+        "narHash": "sha256-uNRRNRKmJyCRC/8y1RqBkqWBLM034y4qN7EprSdmgyA=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "1ef2e671c3b0c19053962c07dbda38332dcebf26",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1705543379,
+        "narHash": "sha256-8wC0vVz/LTqJprbAAvE9P4L01Mi6DJHYwvuM0Uq57og=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "3d7dbcfb56a1cff0729280da3f1185044628975b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "release-23.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "crane": "crane",
+        "fenix": "fenix",
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "rust-analyzer-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1705432736,
+        "narHash": "sha256-uUS5B8ypVevvhjA/2smEOu5s8zK3MBJU5tH0Tze3Kok=",
+        "owner": "rust-lang",
+        "repo": "rust-analyzer",
+        "rev": "03336460fcb25a86675aaff9694998f5910ff747",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rust-lang",
+        "ref": "nightly",
+        "repo": "rust-analyzer",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..f6553e0
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,94 @@
+{
+  description = "my rust project";
+
+  inputs =
+    {
+      nixpkgs.url = "github:NixOS/nixpkgs/release-23.11";
+      flake-utils.url = "github:numtide/flake-utils";
+      fenix =
+        {
+          url = "github:nix-community/fenix";
+          inputs.nixpkgs.follows = "nixpkgs";
+        };
+      crane = {
+        url = "github:ipetkov/crane";
+        inputs.nixpkgs.follows = "nixpkgs";
+      };
+    };
+
+  outputs =
+    { self
+    , nixpkgs
+    , flake-utils
+    , fenix
+    , crane
+    ,
+    }:
+    flake-utils.lib.eachDefaultSystem (system:
+    let
+      overlays = [ fenix.overlays.default ];
+      pkgs = import nixpkgs { inherit system overlays; };
+      rust-components = fenix.packages.${system}.fromToolchainFile
+        {
+          file = ./rust-toolchain.toml;
+          #sha256 = nixpkgs.lib.fakeSha256;
+          sha256 = "sha256-ks0nMEGGXKrHnfv4Fku+vhQ7gx76ruv6Ij4fKZR3l78=";
+        };
+
+      crane-lib = crane.lib.${system}.overrideToolchain rust-components;
+      rust-src = crane-lib.cleanCargoSource (crane-lib.path ./.);
+
+      crane-build-args = {
+        src = rust-src;
+        strictDeps = true;
+
+        buildInputs = [
+          # Add additional build inputs here
+        ] ++ pkgs.lib.optionals pkgs.stdenv.isDarwin [
+          pkgs.libiconv
+        ];
+      };
+      root-cargo-artifacts = crane-lib.buildDepsOnly crane-build-args;
+
+      root-crate = crane-lib.buildPackage {
+        cargoArtifacts = root-cargo-artifacts;
+        src = rust-src;
+        cargoToml = ./Cargo.toml;
+      };
+
+      # TODO(tacogips) fix clippy warnings later
+      #crate-clippy = crane-lib.cargoClippy {
+      #  cargoArtifacts = root-cargo-artifacts;
+      #  src = rust-src;
+      #  #cargoClippyExtraArgs = "-- --deny warnings";
+      #};
+
+    in
+    {
+      # --- checks ---
+      checks = {
+        inherit root-crate; #crate-clippy;
+      };
+      packages. default = root-crate;
+
+      apps.default = flake-utils.lib.mkApp {
+        drv = root-crate;
+      };
+
+      # --- dev shell ---
+      devShells.default = crane-lib.devShell
+        {
+          packages = with pkgs;
+            [
+              nixpkgs-fmt
+              taplo-cli
+              cargo-make
+              rust-analyzer
+              cachix
+            ];
+          shellHook = ''
+          '';
+
+        };
+    });
+}
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 0000000..43227c5
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,3 @@
+[toolchain]
+channel = "1.71.0"
+components = ["rustfmt", "cargo", "clippy", "rust-src", "rust-analyzer"]
diff --git a/src/bin/main.rs b/src/bin/main.rs
index 4607c12..69377ce 100644
--- a/src/bin/main.rs
+++ b/src/bin/main.rs
@@ -3,7 +3,7 @@ use clap::{Parser, Subcommand};
 use env_logger;
 
 #[derive(Parser)]
-#[clap(version = "0.4.0", author = "tacogips")]
+#[clap(version = "0.6.0", author = "tacogips")]
 struct Opts {
     #[clap(long, short)]
     input_schema: String,