diff --git a/docs/tutorial.html b/docs/tutorial.html
index 14d83f3..dfa7b6f 100644
--- a/docs/tutorial.html
+++ b/docs/tutorial.html
@@ -4,9 +4,18 @@
 <head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
-  <title>TinyWebGPU — tutorial</title>
-  <meta name="description" content="A step-by-step tutorial for TinyWebGPU: from one fullscreen
-    shader to compute, atomics and a particle system. Every code box on the page really runs.">
+  <title>TinyWebGPU tutorial — WebGPU and WGSL, sixteen runnable steps</title>
+  <meta name="description" content="A step-by-step WebGPU tutorial: from one fullscreen WGSL
+    shader to compute, uniforms, ping-pong buffers, atomics, indirect dispatch and a particle
+    system. Every code box on the page really runs on your GPU.">
+  <link rel="canonical" href="https://lampmaker.github.io/tinywebgpu/docs/tutorial.html">
+  <meta property="og:type" content="article">
+  <meta property="og:site_name" content="TinyWebGPU">
+  <meta property="og:url" content="https://lampmaker.github.io/tinywebgpu/docs/tutorial.html">
+  <meta property="og:title" content="TinyWebGPU tutorial — WebGPU and WGSL in sixteen runnable steps">
+  <meta property="og:description" content="From one fullscreen WGSL shader to compute, atomics
+    and a particle system — every code box on the page recompiles live against your GPU.">
+  <meta name="twitter:card" content="summary">
   <!-- Loaded first and on purpose not a module: it turns an uncaught error in the
        module scripts below — no WebGPU, no adapter, a file that failed to load — into
        a banner on the page, because a phone has no console to print it to. -->
diff --git a/index.html b/index.html
index 7fade6d..518a499 100644
--- a/index.html
+++ b/index.html
@@ -4,7 +4,20 @@
 <head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
-  <title>TinyWebGPU — demos</title>
+  <title>TinyWebGPU — a one-file WebGPU framework, with live demos</title>
+  <meta name="description" content="A tiny WebGPU framework for shader-first work: WGSL
+    fullscreen shaders, compute passes and GPGPU in one file, no build step. One JS object is
+    the single source of truth for uniforms and resources — WGSL structs, binding indices and
+    buffer offsets are generated for you. Live demos and a step-by-step tutorial.">
+  <link rel="canonical" href="https://lampmaker.github.io/tinywebgpu/">
+  <meta property="og:type" content="website">
+  <meta property="og:site_name" content="TinyWebGPU">
+  <meta property="og:url" content="https://lampmaker.github.io/tinywebgpu/">
+  <meta property="og:title" content="TinyWebGPU — a one-file WebGPU framework">
+  <meta property="og:description" content="A tiny WebGPU framework for shader-first work:
+    WGSL shaders, compute and GPGPU in one file, no build step. One JS object is the single
+    source of truth for uniforms and resources. Live demos in the browser.">
+  <meta name="twitter:card" content="summary">
   <!-- Loaded first and on purpose not a module: it turns an uncaught error in the
        module scripts below — no WebGPU, no adapter, a file that failed to load — into
        a banner on the page, because a phone has no console to print it to. -->
diff --git a/package.json b/package.json
index a6a2444..fdf63da 100644
--- a/package.json
+++ b/package.json
@@ -39,9 +39,13 @@
     "webgpu",
     "wgsl",
     "shader",
+    "shaders",
     "compute",
+    "compute-shader",
     "gpgpu",
-    "graphics"
+    "graphics",
+    "webgpu-framework",
+    "zero-dependency"
   ],
   "devDependencies": {
     "esbuild": "^0.25.0",
