diff --git a/www/deno.json b/www/deno.json
index 0c21fdc..61e22b5 100644
--- a/www/deno.json
+++ b/www/deno.json
@@ -1,11 +1,16 @@
 {
   "tasks": {
     "start": "deno run -A --watch=static/,routes/ dev.ts",
-    "test": "deno test -A --unstable test"
+    "test": "deno test -A --unstable --no-check test"
   },
   "importMap": "./import_map.json",
   "compilerOptions": {
     "jsx": "react-jsx",
     "jsxImportSource": "preact"
+  },
+  "lint": {
+    "rules": {
+      "exclude": ["prefer-const", "require-yield"]
+    }
   }
 }
diff --git a/www/deno.lock b/www/deno.lock
index 0cc993e..b1ea85b 100644
--- a/www/deno.lock
+++ b/www/deno.lock
@@ -2,9 +2,15 @@
   "version": "3",
   "packages": {
     "specifiers": {
+      "jsr:@libs/xml": "jsr:@libs/xml@5.4.13",
       "npm:preact-render-to-string@5.2.4": "npm:preact-render-to-string@5.2.4_preact@10.18.2",
       "npm:preact@10.18.2": "npm:preact@10.18.2"
     },
+    "jsr": {
+      "@libs/xml@5.4.13": {
+        "integrity": "995320d1ce4a29ced82233e5e46d47a880e338197bbd257a686bf9afcc3ac0e4"
+      }
+    },
     "npm": {
       "preact-render-to-string@5.2.4_preact@10.18.2": {
         "integrity": "sha512-iIPHb3BXUQ3Za6KNhkjN/waq11Oh+QWWtAgN3id3LrL+cszH3DYh8TxJPNQ6Aogsbu4JsqdJLBZltwPFpG6N6w==",
@@ -39,6 +45,8 @@
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     "https://deno.land/std@0.140.0/path/separator.ts": "fe1816cb765a8068afb3e8f13ad272351c85cbc739af56dacfc7d93d710fe0f9",
     "https://deno.land/std@0.140.0/path/win32.ts": "31811536855e19ba37a999cd8d1b62078235548d67902ece4aa6b814596dd757",
+    "https://deno.land/std@0.145.0/testing/_test_suite.ts": "ad453767aeb8c300878a6b7920e20370f4ce92a7b6c8e8a5d1ac2b7c14a09acb",
+    "https://deno.land/std@0.145.0/testing/bdd.ts": "182bb823e09bd75b76063ecf50722870101b7cfadf97a09fa29127279dc21128",
     "https://deno.land/std@0.150.0/_util/assert.ts": "e94f2eb37cebd7f199952e242c77654e43333c1ac4c5c700e929ea3aa5489f74",
     "https://deno.land/std@0.150.0/_util/os.ts": "3b4c6e27febd119d36a416d7a97bd3b0251b77c88942c8f16ee5953ea13e2e49",
     "https://deno.land/std@0.150.0/async/abortable.ts": "87aa7230be8360c24ad437212311c9e8d4328854baec27b4c7abb26e85515c06",
@@ -126,6 +134,9 @@
     "https://deno.land/std@0.205.0/path/windows/_util.ts": "f32b9444554c8863b9b4814025c700492a2b57ff2369d015360970a1b1099d54",
     "https://deno.land/std@0.205.0/path/windows/join.ts": "e6600bf88edeeef4e2276e155b8de1d5dec0435fd526ba2dc4d37986b2882f16",
     "https://deno.land/std@0.205.0/path/windows/normalize.ts": "9deebbf40c81ef540b7b945d4ccd7a6a2c5a5992f791e6d3377043031e164e69",
+    "https://deno.land/std@0.97.0/fmt/colors.ts": "db22b314a2ae9430ae7460ce005e0a7130e23ae1c999157e3bb77cf55800f7e4",
+    "https://deno.land/std@0.97.0/testing/_diff.ts": "961eaf6d9f5b0a8556c9d835bbc6fa74f5addd7d3b02728ba7936ff93364f7a3",
+    "https://deno.land/std@0.97.0/testing/asserts.ts": "341292d12eebc44be4c3c2ca101ba8b6b5859cef2fa69d50c217f9d0bfbcfd1f",
     "https://deno.land/x/code_block_writer@11.0.3/mod.ts": "2c3448060e47c9d08604c8f40dee34343f553f33edcdfebbf648442be33205e5",
     "https://deno.land/x/code_block_writer@11.0.3/utils/string_utils.ts": "60cb4ec8bd335bf241ef785ccec51e809d576ff8e8d29da43d2273b69ce2a6ff",
     "https://deno.land/x/denoflate@1.2.1/mod.ts": "f5628e44b80b3d80ed525afa2ba0f12408e3849db817d47a883b801f9ce69dd6",
@@ -143,6 +154,10 @@
     "https://deno.land/x/esbuild_deno_loader@0.5.2/src/native_loader.ts": "343854a566cf510cf25144f7c09fc0c1097780a31830305142a075d12bb697ba",
     "https://deno.land/x/esbuild_deno_loader@0.5.2/src/portable_loader.ts": "35b6c526eed8c2c781a3256b23c30aa7cce69c0ef1d583c15528663287ba18a3",
     "https://deno.land/x/esbuild_deno_loader@0.5.2/src/shared.ts": "b64749cd8c0f6252a11498bd8758ef1220003e46b2c9b68e16da63fd7e92b13a",
+    "https://deno.land/x/expect@v0.2.9/expect.ts": "128c60f94ff3f977e2a649463238e403f9bdb8e6ab77e65214c0236bd61b0111",
+    "https://deno.land/x/expect@v0.2.9/matchers.ts": "ba7360b73c5031a22449fa98eb4d5dbe7f256a88dd4c22ccae96dc6c01f0b19c",
+    "https://deno.land/x/expect@v0.2.9/mock.ts": "562d4b1d735d15b0b8e935f342679096b64fe452f86e96714fe8616c0c884914",
+    "https://deno.land/x/expect@v0.2.9/mod.ts": "0304d2430e1e96ba669a8495e24ba606dcc3d152e1f81aaa8da898cea24e36c2",
     "https://deno.land/x/fresh@1.1.2/dev.ts": "a66c7d64be35bcd6a8e12eec9c27ae335044c70363a241f2e36ee776db468622",
     "https://deno.land/x/fresh@1.1.2/plugins/twind.ts": "c0570d6010e29ba24ee5f43b9d3f1fe735f7fac76d9a3e680c9896373d669876",
     "https://deno.land/x/fresh@1.1.2/plugins/twind/shared.ts": "023e0ffcd66668753b5049edab0de46e6d66194fb6026c679034b9bbf04ad6f3",
@@ -175,43 +190,99 @@
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     "https://deno.land/x/ts_morph@16.0.0/mod.ts": "adba9b82f24865d15d2c78ef6074b9a7457011719056c9928c800f130a617c93",
     "https://deno.land/x/ts_morph@16.0.0/ts_morph.js": "9fc0f3d6a3997c2df023fabc4e529d2117d214ffd4fd04247ca2f56c4e9cd470",
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-    "https://esm.sh/prismjs@1.27.0": "77136c39612a156c684f2953246ed1b1a4a1cca259c1110c43e95db99bee4249",
-    "https://esm.sh/prismjs@1.27.0/components/prism-diff.js?no-check": "0c58cb95503577a26e90d9d6bf53767e9f0f9c3a085d8455422415dd0e50addf",
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+    "https://esm.sh/v135/postcss@8.4.31/denonext/lib/tokenize.js": "c73b6614aa8e3afd00130d76bb989d9c3211f225c9e9e6a8c326b0952d05d4b6",
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+    "https://esm.sh/v135/postcss@8.4.31/denonext/lib/warning.js": "af11340817cce38f4b02f93cadb4c77b0142c69565f07ee86e13ba8948ebeb16",
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+    "https://esm.sh/v135/postcss@8.4.38/denonext/lib/container.js": "45883ae24d338835db06f324706ba0934663dd8bcc88d21aa923d05597bfd38e",
+    "https://esm.sh/v135/postcss@8.4.38/denonext/lib/css-syntax-error.js": "caef7286b91a148388b76a45cb0bf5293b005897a48cf62f4f56c30ce2eb0834",
+    "https://esm.sh/v135/postcss@8.4.38/denonext/lib/declaration.js": "44558eb6e72e0f000c036509b3ef3d44d70432cd4d01e09671c2c85ab1709cf4",
+    "https://esm.sh/v135/postcss@8.4.38/denonext/lib/fromJSON.js": "f05f54ed5babba9300d5121275e1107ae4b12276b86b13f3219ea80fa9986ea3",
+    "https://esm.sh/v135/postcss@8.4.38/denonext/lib/input.js": "14c0a956b92c072b593ef35001970bf762978b07f42e60f0aacdace541c1a82d",
+    "https://esm.sh/v135/postcss@8.4.38/denonext/lib/lazy-result.js": "f0534da57a829115bbee562df99b3ff9891bad4692fd094702246437db84af28",
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+    "https://esm.sh/v135/prismjs@1.27.0/denonext/components/prism-graphql.js": "aa112bfb4c053519e54350969dad3d9532582cb4ab55e2e7dafd21a6ca9a8eb6",
+    "https://esm.sh/v135/prismjs@1.27.0/denonext/components/prism-jsx.js": "7fd7be4359fcd5c25cecdd70dd3a7b0e95f95709e53169b8abe92ad7da715a70",
+    "https://esm.sh/v135/prismjs@1.27.0/denonext/components/prism-tsx.js": "d17030f8b706e6bbea0503bc67ca0339377af0c8a86fa043be73220ec64fbf60",
+    "https://esm.sh/v135/prismjs@1.27.0/denonext/components/prism-typescript.js": "2864b0748ebd4a82e24df1db06054d5e01ee485309b70951aac485c68bd17d08",
+    "https://esm.sh/v135/prismjs@1.27.0/denonext/prismjs.mjs": "ae53f15f65a2aa92e917a5e7ca5292fb4891863287a7094c6d44db3d8de3ee6d",
+    "https://esm.sh/v135/sanitize-html@2.7.0/denonext/sanitize-html.mjs": "d3ef3b0140960800501807202835342d79ca82f30ca131dd2677f22ff1e2601c",
+    "https://esm.sh/v135/source-map-js@1.0.2/denonext/source-map-js.mjs": "81ed2d1f28bd08a762f6819d5b366285a1bacf4b5c3757d866c79e4950529bfd",
+    "https://esm.sh/v135/source-map-js@1.2.0/denonext/source-map-js.mjs": "09ac7844f8befaecf87151a2cba96cb5b658563fc2b4d2f099f0558dfb9c193d",
+    "https://esm.sh/v135/style-vendorizer@2.2.3/denonext/style-vendorizer.mjs": "121455e7b04b631ef6463ce63cdcd29febd74d88c37713c774ceca8a1561c83d",
+    "https://esm.sh/v135/twind@0.16.17/denonext/sheets.js": "2903e4706310977e97d39560c1ef0938097e746b8aa7b0c4503a96c5b6abd2e5",
+    "https://esm.sh/v135/twind@0.16.17/denonext/twind.mjs": "6aa3dcacb083937bb654cf6a50e74270fa12ad8b9205a097324c467f55752188"
   }
 }
diff --git a/www/fresh.gen.ts b/www/fresh.gen.ts
index 1470d03..2d2127d 100644
--- a/www/fresh.gen.ts
+++ b/www/fresh.gen.ts
@@ -9,6 +9,7 @@ import * as $2 from "./routes/_500.tsx";
 import * as $3 from "./routes/docs/[...slug].tsx";
 import * as $4 from "./routes/gfm.css.ts";
 import * as $5 from "./routes/index.tsx";
+import * as $6 from "./routes/sitemap.xml.ts";
 import * as $$0 from "./islands/CopyArea.tsx";
 
 const manifest = {
@@ -19,6 +20,7 @@ const manifest = {
     "./routes/docs/[...slug].tsx": $3,
     "./routes/gfm.css.ts": $4,
     "./routes/index.tsx": $5,
+    "./routes/sitemap.xml.ts": $6,
   },
   islands: {
     "./islands/CopyArea.tsx": $$0,
diff --git a/www/routes/sitemap.xml.ts b/www/routes/sitemap.xml.ts
new file mode 100644
index 0000000..e050247
--- /dev/null
+++ b/www/routes/sitemap.xml.ts
@@ -0,0 +1,40 @@
+import { Handlers } from "$fresh/server.ts";
+import { stringify } from "jsr:@libs/xml";
+
+import docs from "../docs/toc.json" with { type: "json" };
+
+export const handler: Handlers = {
+  GET(request) {
+    let base = new URL(
+      request.headers.get("x-base-url") ?? new URL(new URL(request.url).origin),
+    );
+    let paths = Object.entries(docs).flatMap(([topic, collection]) => {
+      if ("pages" in collection) {
+        return collection.pages.map(([id]) => `${topic}/${id}`);
+      } else {
+        return topic;
+      }
+    });
+
+    let index = { loc: String(base) };
+
+    let urls = paths.map((path) => ({
+      loc: String(new URL(path, base)),
+    }));
+
+    let xml = stringify({
+      "@version": "1.0",
+      "@encoding": "UTF-8",
+      urlset: {
+        "@xmlns": "http://www.sitemaps.org/schemas/sitemap/0.9",
+        url: [index, ...urls],
+      },
+    });
+
+    return new Response(xml, {
+      headers: {
+        "Content-Type": "application/xml",
+      },
+    });
+  },
+};