diff --git a/.envrc b/.envrc
new file mode 100644
index 00000000..30da14fd
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,5 @@
+export DIRENV_WARN_TIMEOUT=20s
+
+eval "$(devenv direnvrc)"
+
+use devenv
diff --git a/.gitignore b/.gitignore
index a34615ec..5e33b24d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,15 @@ build/
 *.efi
 *.exe
 *.pdb
+
+# Devenv
+.devenv*
+devenv.local.nix
+# Nix
+result*
+
+# direnv
+.direnv
+
+# pre-commit
+.pre-commit-config.yaml
diff --git a/devenv.lock b/devenv.lock
new file mode 100644
index 00000000..bd0c7fbf
--- /dev/null
+++ b/devenv.lock
@@ -0,0 +1,140 @@
+{
+  "nodes": {
+    "devenv": {
+      "locked": {
+        "dir": "src/modules",
+        "lastModified": 1747543288,
+        "owner": "cachix",
+        "repo": "devenv",
+        "rev": "3a8a52386bde1cf14fc2f4c4df80f91417348480",
+        "type": "github"
+      },
+      "original": {
+        "dir": "src/modules",
+        "owner": "cachix",
+        "repo": "devenv",
+        "type": "github"
+      }
+    },
+    "fenix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "rust-analyzer-src": "rust-analyzer-src"
+      },
+      "locked": {
+        "lastModified": 1747392669,
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "c3c27e603b0d9b5aac8a16236586696338856fbb",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1747046372,
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "9100a0f413b0c601e0533d1d94ffd501ce2e7885",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "git-hooks": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "gitignore": "gitignore",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1747372754,
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "rev": "80479b6ec16fefd9c1db3ea13aeb038c60530f46",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "type": "github"
+      }
+    },
+    "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "git-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1709087332,
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1746807397,
+        "owner": "cachix",
+        "repo": "devenv-nixpkgs",
+        "rev": "c5208b594838ea8e6cca5997fbf784b7cca1ca90",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "ref": "rolling",
+        "repo": "devenv-nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "devenv": "devenv",
+        "fenix": "fenix",
+        "git-hooks": "git-hooks",
+        "nixpkgs": "nixpkgs",
+        "pre-commit-hooks": [
+          "git-hooks"
+        ]
+      }
+    },
+    "rust-analyzer-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1747557850,
+        "owner": "rust-lang",
+        "repo": "rust-analyzer",
+        "rev": "e464ff8c755c6e12540a45b83274ec4de4829191",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rust-lang",
+        "ref": "nightly",
+        "repo": "rust-analyzer",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/devenv.nix b/devenv.nix
new file mode 100644
index 00000000..413d6a66
--- /dev/null
+++ b/devenv.nix
@@ -0,0 +1,11 @@
+{ pkgs, lib, config, inputs, ... }:
+
+{
+  packages = with pkgs; [
+    systemd # libudev
+  ];
+
+  languages.rust.enable = true;
+  # https://devenv.sh/reference/options/#languagesrustchannel
+  languages.rust.channel = "stable";
+}
diff --git a/devenv.yaml b/devenv.yaml
new file mode 100644
index 00000000..1d180750
--- /dev/null
+++ b/devenv.yaml
@@ -0,0 +1,8 @@
+inputs:
+  fenix:
+    url: github:nix-community/fenix
+    inputs:
+      nixpkgs:
+        follows: nixpkgs
+  nixpkgs:
+    url: github:cachix/devenv-nixpkgs/rolling
diff --git a/nix.md b/nix.md
new file mode 100644
index 00000000..19b140ca
--- /dev/null
+++ b/nix.md
@@ -0,0 +1,12 @@
+# Building with Nix
+
+## Building with devenv
+
+
+Must have Nix and devenv installed
+
+```
+devenv shell
+cargo build
+sudo ./target/debug/framework_tool
+```