diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..f62a3db
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,2 @@
+use flake
+use flake
diff --git a/.gitignore b/.gitignore
index 518877a..3da6280 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 /target
 /output.cast
+.direnv
diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..3268989
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,12 @@
+{ toolchain, makeRustPlatform, pkg-config }:
+
+let rustPlatform = makeRustPlatform { inherit (toolchain) cargo rustc; };
+
+in rustPlatform.buildRustPackage {
+  name = "asciinema";
+  src = ./.;
+  cargoLock.lockFile = ./Cargo.lock;
+
+  nativeBuildInputs = [ pkg-config ];
+  buildInputs = [ ];
+}
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..0c5b225
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,79 @@
+{
+  "nodes": {
+    "fenix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "rust-analyzer-src": "rust-analyzer-src"
+      },
+      "locked": {
+        "lastModified": 1673072488,
+        "narHash": "sha256-oSlrgIlaZEcBrH9o6ujCtuzvULB7w5MrQl1Xccsl9Is=",
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "2fa6ef94550e2e8b5e47fa3b0655edcacbb65cb6",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1667395993,
+        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "type": "github"
+      },
+      "original": {
+        "id": "flake-utils",
+        "type": "indirect"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1667629849,
+        "narHash": "sha256-P+v+nDOFWicM4wziFK9S/ajF2lc0N2Rg9p6Y35uMoZI=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "3bacde6273b09a21a8ccfba15586fb165078fb62",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "fenix": "fenix",
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "rust-analyzer-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1673025936,
+        "narHash": "sha256-Dm2qLfxAEqrfz9CE6w1jlEZdfNLFeAkC/mcb4xwUQQE=",
+        "owner": "rust-lang",
+        "repo": "rust-analyzer",
+        "rev": "f1a99014b356c6aa41a69ceecf1f8cc68d901006",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rust-lang",
+        "ref": "nightly",
+        "repo": "rust-analyzer",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..58bb100
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,31 @@
+{
+  inputs = {
+    fenix.url = "github:nix-community/fenix";
+    fenix.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs = { self, nixpkgs, flake-utils, fenix }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+          overlays = [ fenix.overlays.default ];
+        };
+
+        toolchain = pkgs.fenix.default;
+
+        flakePkgs = {
+          asciinema = pkgs.callPackage ./. { inherit toolchain; };
+        };
+      in rec {
+        packages = flake-utils.lib.flattenTree flakePkgs;
+        defaultPackage = packages.asciinema;
+
+        devShell = pkgs.mkShell {
+          inputsFrom = with packages; [ asciinema ];
+          packages =
+            (with pkgs; [ cargo-watch cargo-deny cargo-edit sqlx-cli sqlite ])
+            ++ (with toolchain; [ cargo rustc ]);
+        };
+      });
+}
diff --git a/rustfmt.toml b/rustfmt.toml
index 3450fc4..4c1eefa 100644
--- a/rustfmt.toml
+++ b/rustfmt.toml
@@ -1,2 +1,2 @@
 max_width = 80
-wrap_comments = true
+tab_spaces = 2