diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..5bf8fc1
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,3 @@
+source_url "https://raw.githubusercontent.com/cachix/devenv/95f329d49a8a5289d31e0982652f7058a189bfca/direnvrc" "sha256-d+8cBpDfDBj41inrADaJt+bDWhOktwslgoP5YiGJ1v0="
+
+use devenv
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index ea8c4bf..54bb18f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,10 @@
 /target
+# Devenv
+.devenv*
+devenv.local.nix
+
+# direnv
+.direnv
+
+# pre-commit
+.pre-commit-config.yaml
diff --git a/devenv.lock b/devenv.lock
new file mode 100644
index 0000000..9f461f7
--- /dev/null
+++ b/devenv.lock
@@ -0,0 +1,161 @@
+{
+  "nodes": {
+    "devenv": {
+      "locked": {
+        "dir": "src/modules",
+        "lastModified": 1719155972,
+        "owner": "cachix",
+        "repo": "devenv",
+        "rev": "52b3a67a2da7fbea30ee547d97d598f2f1ac83c4",
+        "treeHash": "73b342056d61bf331ad859c64e416396609fa610",
+        "type": "github"
+      },
+      "original": {
+        "dir": "src/modules",
+        "owner": "cachix",
+        "repo": "devenv",
+        "type": "github"
+      }
+    },
+    "fenix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "rust-analyzer-src": "rust-analyzer-src"
+      },
+      "locked": {
+        "lastModified": 1719124034,
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "952534c86a1e13ef78ccf00892246e33b222a69d",
+        "treeHash": "4368dc8d867e5fdc0ea2d1278e2b9084603be136",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1696426674,
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "treeHash": "2addb7b71a20a25ea74feeaf5c2f6a6b30898ecb",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "pre-commit-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1709087332,
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
+        "treeHash": "ca14199cabdfe1a06a7b1654c76ed49100a689f9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1716977621,
+        "owner": "cachix",
+        "repo": "devenv-nixpkgs",
+        "rev": "4267e705586473d3e5c8d50299e71503f16a6fb6",
+        "treeHash": "6d9f1f7ca0faf1bc2eeb397c78a49623260d3412",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "ref": "rolling",
+        "repo": "devenv-nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-stable": {
+      "locked": {
+        "lastModified": 1718811006,
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "03d771e513ce90147b65fe922d87d3a0356fc125",
+        "treeHash": "ab837eb82b2b0afbb6568f2b27f214324699af3d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-23.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "pre-commit-hooks": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "gitignore": "gitignore",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "nixpkgs-stable": "nixpkgs-stable"
+      },
+      "locked": {
+        "lastModified": 1718879355,
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "rev": "8cd35b9496d21a6c55164d8547d9d5280162b07a",
+        "treeHash": "246f2197feb48979ccc58af4cab0cfd0f5738645",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "devenv": "devenv",
+        "fenix": "fenix",
+        "nixpkgs": "nixpkgs",
+        "pre-commit-hooks": "pre-commit-hooks"
+      }
+    },
+    "rust-analyzer-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1719057472,
+        "owner": "rust-lang",
+        "repo": "rust-analyzer",
+        "rev": "2fd803cc13dc11aeacaa6474e3f803988a7bfe1a",
+        "treeHash": "b2985d4d883af53da4152e353904110f71c1ef88",
+        "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 0000000..0ac68f8
--- /dev/null
+++ b/devenv.nix
@@ -0,0 +1,82 @@
+{
+  pkgs,
+  lib,
+  config,
+  inputs,
+  ...
+}: {
+  # https://devenv.sh/basics/
+  env.GREET = "magnetophon";
+
+  # https://devenv.sh/packages/
+  packages = with pkgs; [
+    git
+    # lldb
+    # cargo
+    # rustc
+    # rustfmt
+    # rust-analyzer
+    # clippy
+    # cargo-watch
+    # cargo-nextest
+    # cargo-expand # expand macros and inspect the output
+    # cargo-llvm-lines # count number of lines of LLVM IR of a generic function
+    # cargo-inspect
+    # cargo-criterion
+    # evcxr # make sure repl is in a gc-root
+    # cargo-play # quickly run a rust file that has a maint function
+
+    pkg-config
+
+    libjack2
+    alsa-lib
+
+    libGL
+    xorg.libXcursor
+    xorg.libX11 # libX11-xcb.so
+    xorg.xcbutilwm # libxcb-icccm.so
+
+    faust
+    python3
+  ];
+
+  # https://devenv.sh/scripts/
+  scripts.hello.exec = "echo hello from $GREET";
+
+  enterShell = ''
+    hello
+    # git --version
+    # fish
+  '';
+
+  # https://devenv.sh/tests/
+  # enterTest = ''
+  # echo "Running tests"
+  # git --version | grep "2.42.0"
+  # '';
+
+  # https://devenv.sh/services/
+  # services.postgres.enable = true;
+
+  # https://devenv.sh/languages/
+  # https://devenv.sh/reference/options/#languagesrustchannel
+  languages.rust = {
+    enable = true;
+    channel = "nightly";
+  };
+
+  # https://devenv.sh/pre-commit-hooks/
+  pre-commit.hooks = {
+    shellcheck.enable = true;
+    clippy.enable = true;
+    # hunspell.enable = true;
+    alejandra.enable = true;
+    rustfmt.enable = true;
+    typos.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..2bbabf4
--- /dev/null
+++ b/devenv.yaml
@@ -0,0 +1,8 @@
+inputs:
+  nixpkgs:
+    url: github:cachix/devenv-nixpkgs/rolling
+  fenix:
+    url: github:nix-community/fenix
+    inputs:
+      nixpkgs:
+        follows: nixpkgs