diff --git a/README.md b/README.md
index bec9df9..ab417ea 100644
--- a/README.md
+++ b/README.md
@@ -35,9 +35,8 @@ speaker mappings, generated audio, and TTS endpoint stay on your computer.
 
 ## Requirements
 
-- A reachable [Kokoro-FastAPI](docs/kokoro-fastapi.json) instance. Install and
-  run it using the upstream [Kokoro-FastAPI instructions](https://github.com/remsky/Kokoro-FastAPI);
-  Mudmouth uses `http://127.0.0.1:8880` by default.
+- A reachable [Kokoro-FastAPI](https://github.com/remsky/Kokoro-FastAPI) instance. Install and
+  run it using the upstream instructions; Mudmouth uses `http://127.0.0.1:8880` by default.
 - An EverQuest log with `/log on`.
 
 No `ffplay`, `mpv`, PipeWire command, or other external audio player is
@@ -48,6 +47,24 @@ required; Mudmouth plays returned WAV audio itself.
 See [development and build notes](docs/development.md) for local setup,
 running Mudmouth, validation, and multi-platform release packaging.
 
+### NixOS
+
+Install the packaged application from this repository:
+
+```bash
+nix profile install github:pleb/mudmouth
+mudmouth --log "$HOME/Games/EverQuestLegends/Logs/eqlog_Character_server.txt"
+```
+
+Or run it without installing:
+
+```bash
+nix run github:pleb/mudmouth -- --log "$HOME/Games/EverQuestLegends/Logs/eqlog_Character_server.txt"
+```
+
+The flake includes the ALSA runtime dependency. Start Kokoro-FastAPI separately;
+Mudmouth connects to `http://127.0.0.1:8880` by default.
+
 ## TUI controls
 
 | Key | Action |
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..fdfbda4
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1784497964,
+        "narHash": "sha256-vlHUuqAcbcH2RKmHbPiuQzbv1pnzzavXnI62RD0bqCU=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "241313f4e8e508cb9b13278c2b0fa25b9ca27163",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..1b2d55d
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,68 @@
+{
+  description = "Mudmouth, a classic-MUD-inspired EverQuest log reader";
+
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+
+  outputs =
+    { self, nixpkgs }:
+    let
+      systems = [
+        "x86_64-linux"
+        "aarch64-linux"
+      ];
+      forAllSystems = nixpkgs.lib.genAttrs systems;
+    in
+    {
+      packages = forAllSystems (
+        system:
+        let
+          pkgs = import nixpkgs { inherit system; };
+        in
+        {
+          default = pkgs.rustPlatform.buildRustPackage {
+            pname = "mudmouth";
+            version = "0.0.2";
+            src = self;
+
+            cargoLock.lockFile = ./Cargo.lock;
+            nativeBuildInputs = [ pkgs.pkg-config ];
+            buildInputs = [ pkgs.alsa-lib ];
+
+            meta = with pkgs.lib; {
+              description = "A classic-MUD-inspired EverQuest log reader with Kokoro voices";
+              homepage = "https://github.com/pleb/mudmouth";
+              license = licenses.mit;
+              mainProgram = "mudmouth";
+              platforms = platforms.linux;
+            };
+          };
+        }
+      );
+
+      apps = forAllSystems (system: {
+        default = {
+          type = "app";
+          program = "${self.packages.${system}.default}/bin/mudmouth";
+        };
+      });
+
+      devShells = forAllSystems (
+        system:
+        let
+          pkgs = import nixpkgs { inherit system; };
+        in
+        {
+          default = pkgs.mkShell {
+            packages = with pkgs; [
+              cargo
+              rustc
+              rustfmt
+              clippy
+              pkg-config
+              alsa-lib
+            ];
+          };
+        }
+      );
+    };
+}