diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..b9238c3
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+use flake
diff --git a/.gitignore b/.gitignore
index c31fef4..8ab215c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,4 @@
-# Generated by Cargo
-Cargo.lock
+.direnv/
+coverage/
 debug/
 target/
-
-# Code coverage results
-coverage/
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..c945397
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,128 @@
+{
+  "nodes": {
+    "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"
+      }
+    },
+    "flake-utils_2": {
+      "inputs": {
+        "systems": "systems_2"
+      },
+      "locked": {
+        "lastModified": 1681202837,
+        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1706006310,
+        "narHash": "sha256-nDPz0fj0IFcDhSTlXBU2aixcnGs2Jm4Zcuoj0QtmiXQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "b43bb235efeab5324c5e486882ef46749188eee2",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1681358109,
+        "narHash": "sha256-eKyxW4OohHQx9Urxi7TQlFBTDWII+F+x2hklDOQPB50=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "96ba1c52e54e74c3197f4d43026b3f3d92e83ff9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs",
+        "rust-overlay": "rust-overlay"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "flake-utils": "flake-utils_2",
+        "nixpkgs": "nixpkgs_2"
+      },
+      "locked": {
+        "lastModified": 1706149103,
+        "narHash": "sha256-Me28A0tAb1EzZIozfi31+hnsQIaYU0HXaMPWCe+zByc=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "493cc67d5e9f1b298241b8d92aa06883296acc3f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "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"
+      }
+    },
+    "systems_2": {
+      "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..b394bb9
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,17 @@
+{
+  inputs = {
+    flake-utils.url = "github:numtide/flake-utils";
+    rust-overlay.url = "github:oxalica/rust-overlay";
+  };
+
+  outputs = { self, nixpkgs, flake-utils, rust-overlay }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        overlays = [ (import rust-overlay) ];
+        pkgs = import nixpkgs { inherit system overlays; };
+      in
+      {
+        devShells.default = import ./shell.nix { inherit pkgs; };
+      }
+    );
+}
diff --git a/rustup-toolchain.toml b/rustup-toolchain.toml
new file mode 100644
index 0000000..0a15096
--- /dev/null
+++ b/rustup-toolchain.toml
@@ -0,0 +1,3 @@
+[toolchain]
+channel = "stable"
+components = ["cargo", "clippy", "rustfmt", "rust-src"]
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..a945393
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,18 @@
+{ pkgs ? import <nixpkgs> { } }:
+
+with pkgs;
+
+let
+  rustup-toolchain = rust-bin.fromRustupToolchainFile ./rustup-toolchain.toml;
+in
+mkShell rec {
+  packages = [
+    cargo-audit
+    cargo-edit
+    cargo-make
+    cargo-outdated
+    cargo-tarpaulin
+    rustup-toolchain
+    typos
+  ];
+}
diff --git a/typos.toml b/typos.toml
new file mode 100644
index 0000000..bb62527
--- /dev/null
+++ b/typos.toml
@@ -0,0 +1,2 @@
+[default.extend-words]
+BA = "BA"