diff --git a/.gitignore b/.gitignore
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--- /dev/null
+++ b/.gitignore
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+/.zig-cache/
+/zig-out/
diff --git a/README.md b/README.md
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+++ b/README.md
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+```
+     _   _ _       _     _     _       _     _       _         
+    | \ | (_)     | |   | |   | \     / |   | |     | |        
+    |  \| |_  __ _| |__ | |_  \  \ _ /  /_ _| |_  __| |___     
+    | . ` | |/ _` | '_ \| __|  \  ` '  / _` | __|/ _| '_  \    
+    | |\  | | (_| | | | | |_    \     / (_| | |_| (_| | | |    
+    |_| \_|_|\__, |_| |_|\__|    \_|_/ \__,_|\__|\__|_| |_|    
+              __/ |                                            
+             |___/                                             
+                   T H E   N I G H T   W A T C H               
+```
+![nightwatch](docs/nightwatch.png)
+
+> The city sleeps.
+> The files do not.
+
+"FABRICATI DIEM, PVNC"
+
+**The Night Watch** is a file change tracker for directory trees, written
+in **Zig**.
+
+It provides:
+
+- A standalone CLI for tracking filesystem changes
+- A module for embedding change-tracking into other Zig programs
+- Minimal dependencies and consistent, predictable, cross-platform behavior
+
+It does not interfere.
+It does not speculate.
+It simply keeps watch.
+
+------------------------------------------------------------------------
+
+## Features
+
+- Recursive directory tree tracking
+- Deterministic multi-platform support (Linux, FreeBSD, MacOS, Windows)
+- Lightweight and fast
+- Embeddable Zig module API
+- Standalone CLI executable
+
+------------------------------------------------------------------------
+
+# Installation
+
+The Watch is written in **Zig** and built using the Zig build system.
+
+## Requirements
+
+- Zig (currently zig-0.15.2)
+
+## Build CLI
+
+``` bash
+zig build
+```
+
+The executable will be located in:
+
+`zig-out/bin/nightwatch`
+
+## Install System-Wide
+
+``` bash
+zig build install
+```
+
+------------------------------------------------------------------------
+
+# Using as a Zig Module
+
+The Night Watch exposes a reusable module that can be imported into
+other Zig programs.
+
+In your `build.zig`:
+
+``` zig
+const nightwatch = b.dependency("nightwatch", .{
+    .target = target,
+    .optimize = optimize,
+});
+
+exe.root_module.addImport("nightwatch", nightwatch.module("nightwatch"));
+```
+
+In your Zig source:
+
+``` zig
+const nightwatch = @import("nightwatch");
+```
+
+You now have programmatic access to the tracking engine.
+
+------------------------------------------------------------------------
+
+# CLI Usage
+
+``` bash
+nightwatch [{path}..]
+```
+
+Run:
+
+``` bash
+nightwatch --help
+```
+
+for full command documentation.
+
+------------------------------------------------------------------------
+
+# Philosophy
+
+Other tools watch files.
+
+The Night Watch keeps watch over the peace.
+
+It remembers what changed.
+It records what vanished.
+It notices what arrived at 2:14 AM.
+
+And it writes it down.
diff --git a/build.zig b/build.zig
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--- /dev/null
+++ b/build.zig
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+const std = @import("std");
+
+pub fn build(b: *std.Build) void {
+    const target = b.standardTargetOptions(.{});
+    const optimize = b.standardOptimizeOption(.{});
+
+    const mod = b.addModule("nightwatch", .{
+        .root_source_file = b.path("src/nightwatch.zig"),
+        .target = target,
+    });
+
+    const exe = b.addExecutable(.{
+        .name = "nightwatch",
+        .root_module = b.createModule(.{
+            .root_source_file = b.path("src/main.zig"),
+            .target = target,
+            .optimize = optimize,
+            .imports = &.{
+                .{ .name = "nightwatch", .module = mod },
+            },
+        }),
+    });
+
+    b.installArtifact(exe);
+
+    const run_step = b.step("run", "Run the app");
+    const run_cmd = b.addRunArtifact(exe);
+    run_step.dependOn(&run_cmd.step);
+    run_cmd.step.dependOn(b.getInstallStep());
+    if (b.args) |args|
+        run_cmd.addArgs(args);
+
+    const mod_tests = b.addTest(.{
+        .root_module = mod,
+    });
+    const run_mod_tests = b.addRunArtifact(mod_tests);
+
+    const exe_tests = b.addTest(.{
+        .root_module = exe.root_module,
+    });
+    const run_exe_tests = b.addRunArtifact(exe_tests);
+
+    const test_step = b.step("test", "Run tests");
+    test_step.dependOn(&run_mod_tests.step);
+    test_step.dependOn(&run_exe_tests.step);
+}
diff --git a/build.zig.zon b/build.zig.zon
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+++ b/build.zig.zon
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+.{
+    .name = .nightwatch,
+    .version = "0.1.0",
+    .fingerprint = 0xb88932861fde7cb9,
+    .minimum_zig_version = "0.15.2",
+    .dependencies = .{},
+    .paths = .{
+        "build.zig",
+        "build.zig.zon",
+        "src",
+        "README.md",
+    },
+}
diff --git a/docs/nightwatch.png b/docs/nightwatch.png
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index 0000000..fbc9566
Binary files /dev/null and b/docs/nightwatch.png differ
diff --git a/src/main.zig b/src/main.zig
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+++ b/src/main.zig
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+const std = @import("std");
+const nightwatch = @import("nightwatch");
+
+pub fn main() !void {
+    std.debug.print("FABRICATI DIEM, PVNC\n", .{});
+}
+
+test "simple test" {}