diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..c72a725
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "passgen"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+clap = { version = "4.5.4", features = ["derive"] }
+rand = "0.8.5"
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..2085255
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,188 @@
+{
+  "nodes": {
+    "fenix": {
+      "inputs": {
+        "nixpkgs": "nixpkgs",
+        "rust-analyzer-src": "rust-analyzer-src"
+      },
+      "locked": {
+        "lastModified": 1717223092,
+        "narHash": "sha256-ih8NPk3Jn5EAILOGQZ+KS5NLmu6QmwohJX+36MaTAQE=",
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "9a025daf6799e3af80b677f0af57ef76432c3fcf",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "monthly",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1696426674,
+        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "pre-commit-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1709087332,
+        "narHash": "sha256-HG2cCnktfHsKV0s4XW83gU3F57gaTljL9KNSuG6bnQs=",
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1716948383,
+        "narHash": "sha256-SzDKxseEcHR5KzPXLwsemyTR/kaM9whxeiJohbL04rs=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "ad57eef4ef0659193044870c731987a6df5cf56b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-stable": {
+      "locked": {
+        "lastModified": 1710695816,
+        "narHash": "sha256-3Eh7fhEID17pv9ZxrPwCLfqXnYP006RKzSs0JptsN84=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "614b4613980a522ba49f0d194531beddbb7220d3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-23.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1717112898,
+        "narHash": "sha256-7R2ZvOnvd9h8fDd65p0JnB7wXfUvreox3xFdYWd1BnY=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "6132b0f6e344ce2fe34fc051b72fb46e34f668e0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1710765496,
+        "narHash": "sha256-p7ryWEeQfMwTB6E0wIUd5V2cFTgq+DRRBz2hYGnJZyA=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "e367f7a1fb93137af22a3908f00b9a35e2d286a7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "pre-commit-hooks": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "gitignore": "gitignore",
+        "nixpkgs": "nixpkgs_3",
+        "nixpkgs-stable": "nixpkgs-stable"
+      },
+      "locked": {
+        "lastModified": 1716213921,
+        "narHash": "sha256-xrsYFST8ij4QWaV6HEokCUNIZLjjLP1bYC60K8XiBVA=",
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "rev": "0e8fcc54b842ad8428c9e705cb5994eaf05c26a0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "fenix": "fenix",
+        "nixpkgs": "nixpkgs_2",
+        "pre-commit-hooks": "pre-commit-hooks",
+        "systems": "systems"
+      }
+    },
+    "rust-analyzer-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1717169693,
+        "narHash": "sha256-qBruki5NHrSqIw5ulxtwFmVsb6W/aOKOMjsCJjfalA4=",
+        "owner": "rust-lang",
+        "repo": "rust-analyzer",
+        "rev": "d6d735e6f20ef78b16a79886fe28bd69cf059504",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rust-lang",
+        "ref": "nightly",
+        "repo": "rust-analyzer",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1689347949,
+        "narHash": "sha256-12tWmuL2zgBgZkdoB6qXZsgJEH9LR3oUgpaQq2RbI80=",
+        "owner": "nix-systems",
+        "repo": "default-linux",
+        "rev": "31732fcf5e8fea42e59c2488ad31a0e651500f68",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default-linux",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..96e94cc
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,30 @@
+use clap::Parser;
+use rand::{distributions::Alphanumeric, Rng};
+
+#[derive(Parser, Debug)]
+struct Args {
+    #[arg(short)]
+    length: usize,
+}
+
+#[derive(Debug)]
+struct RandomString;
+
+impl RandomString {
+    fn generate_string(&self) -> String {
+        let args = Args::parse();
+        let s: String = rand::thread_rng()
+            .sample_iter(&Alphanumeric)
+            .take(args.length)
+            .map(char::from)
+            .collect();
+        s
+    }
+}
+
+fn main() {
+    let random_string = RandomString;
+    let string_output = random_string.generate_string();
+
+    println!("{}", string_output);
+}