diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..6de8a8a
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,3 @@
+source_url "https://raw.githubusercontent.com/cachix/devenv/d1f7b48e35e6dee421cfd0f51481d17f77586997/direnvrc" "sha256-YBzqskFZxmNb3kYVoKD9ZixoPXJh1C9ZvTLGFRkauZ0="
+
+use devenv
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index a8b42eb..b67de3b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,6 @@
 *.retry
+
+# Devenv
+.devenv*
+devenv.local.nix
+.pre-commit-config.yaml
diff --git a/devenv.lock b/devenv.lock
new file mode 100644
index 0000000..62b6f73
--- /dev/null
+++ b/devenv.lock
@@ -0,0 +1,138 @@
+{
+  "nodes": {
+    "devenv": {
+      "locked": {
+        "dir": "src/modules",
+        "lastModified": 1681818540,
+        "narHash": "sha256-cokgv9kZM+rQtTI45x3z8WuCO4atL0UNtQWICc+v1WM=",
+        "owner": "cachix",
+        "repo": "devenv",
+        "rev": "c67a0fcf40a384f955d21494cb6d72a562cf82cf",
+        "type": "github"
+      },
+      "original": {
+        "dir": "src/modules",
+        "owner": "cachix",
+        "repo": "devenv",
+        "type": "github"
+      }
+    },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1673956053,
+        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1667395993,
+        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "pre-commit-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1660459072,
+        "narHash": "sha256-8DFJjXG8zqoONA1vXtgeKXy68KdJL5UaXR8NtVMUbx8=",
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "a20de23b925fd8264fd7fad6454652e142fd7f73",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1681753173,
+        "narHash": "sha256-MrGmzZWLUqh2VstoikKLFFIELXm/lsf/G9U9zR96VD4=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "0a4206a51b386e5cda731e8ac78d76ad924c7125",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-stable": {
+      "locked": {
+        "lastModified": 1678872516,
+        "narHash": "sha256-/E1YwtMtFAu2KUQKV/1+KFuReYPANM2Rzehk84VxVoc=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "9b8e5abb18324c7fe9f07cb100c3cd4a29cda8b8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-22.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "pre-commit-hooks": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "flake-utils": "flake-utils",
+        "gitignore": "gitignore",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "nixpkgs-stable": "nixpkgs-stable"
+      },
+      "locked": {
+        "lastModified": 1681831107,
+        "narHash": "sha256-pXl3DPhhul9NztSetUJw2fcN+RI3sGOYgKu29xpgnqw=",
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "rev": "b7ca8f6fff42f6af75c17f9438fed1686b7d855d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "devenv": "devenv",
+        "nixpkgs": "nixpkgs",
+        "pre-commit-hooks": "pre-commit-hooks"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/devenv.nix b/devenv.nix
new file mode 100644
index 0000000..559e24d
--- /dev/null
+++ b/devenv.nix
@@ -0,0 +1,31 @@
+{pkgs, ...}: {
+  # https://devenv.sh/basics/
+  env.GREET = "devenv";
+
+  # https://devenv.sh/packages/
+  packages = [pkgs.delta pkgs.difftastic];
+
+  # https://devenv.sh/scripts/
+  scripts.hello.exec = "echo hello from $GREET";
+
+  enterShell = ''
+    hello
+    git --version
+  '';
+
+  # https://devenv.sh/languages/
+  # languages.nix.enable = true;
+
+  # https://devenv.sh/pre-commit-hooks/
+  # pre-commit.hooks.shellcheck.enable = true;
+  pre-commit.hooks = {
+    shellcheck.enable = true;
+    black.enable = true;
+    alejandra.enable = true;
+  };
+
+  # https://devenv.sh/processes/
+  # processes.ping.exec = "ping example.com";
+
+  # See full reference at https://devenv.sh/reference/options/
+}
diff --git a/devenv.yaml b/devenv.yaml
new file mode 100644
index 0000000..c7cb5ce
--- /dev/null
+++ b/devenv.yaml
@@ -0,0 +1,3 @@
+inputs:
+  nixpkgs:
+    url: github:NixOS/nixpkgs/nixpkgs-unstable