diff --git a/.github/workflows/update-flake-lock.yml b/.github/workflows/update-flake-lock.yml
index 67ae21e4..15c2b47d 100644
--- a/.github/workflows/update-flake-lock.yml
+++ b/.github/workflows/update-flake-lock.yml
@@ -59,7 +59,7 @@ jobs:
           committer: github-actions[bot] github-actions[bot]@users.noreply.github.com
           assignees: lucperkins
           reviewers: lucperkins
-          labels:
+          labels: |
             automated
             templates
             update
diff --git a/.npmrc b/.npmrc
index 98f72369..9bf9395d 100644
--- a/.npmrc
+++ b/.npmrc
@@ -1,2 +1 @@
-auto-install-peers = true
 shamefully-hoist = true
diff --git a/.prettierignore b/.prettierignore
index 7dcb41e1..e6cf3682 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -7,3 +7,4 @@ pnpm-lock.yaml
 **/*.mdx
 src/components/Posthog.astro
 **/*.lock
+**/*.hbs
diff --git a/package.json b/package.json
index aa414053..773d1170 100644
--- a/package.json
+++ b/package.json
@@ -34,6 +34,7 @@
     "astro-expressive-code": "^0.38.3",
     "astro-icon": "^1.1.5",
     "astro-seo": "^0.8.4",
+    "handlebars": "^4.7.8",
     "marked": "^12.0.2",
     "posthog-js": "^1.266.0",
     "react": "^18.3.1",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 759e3d4c..1b085935 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -80,6 +80,9 @@ importers:
       astro-seo:
         specifier: ^0.8.4
         version: 0.8.4(prettier-plugin-astro@0.14.1)(prettier@3.6.2)(typescript@5.9.2)
+      handlebars:
+        specifier: ^4.7.8
+        version: 4.7.8
       marked:
         specifier: ^12.0.2
         version: 12.0.2
@@ -1676,6 +1679,11 @@ packages:
   h3@1.15.4:
     resolution: {integrity: sha512-z5cFQWDffyOe4vQ9xIqNfCZdV4p//vy6fBnr8Q1AWnVZ0teurKMG66rLj++TKwKPUP3u7iMUvrvKaEUiQw2QWQ==}
 
+  handlebars@4.7.8:
+    resolution: {integrity: sha512-vafaFqs8MZkRrSX7sFVUdo3ap/eNiLnb4IakshzvP56X5Nr1iGKAIqdX6tMlm6HcNRIkr6AxO5jFEoJzzpT8aQ==}
+    engines: {node: '>=0.4.7'}
+    hasBin: true
+
   has-symbols@1.1.0:
     resolution: {integrity: sha512-1cDNdwJ2Jaohmb3sg4OmKaMBwuC48sYni5HUw2DvsC8LjGTLK9h+eb1X6RyuOHe4hT0ULCW68iomhjUoKUqlPQ==}
     engines: {node: '>= 0.4'}
@@ -2118,6 +2126,9 @@ packages:
     resolution: {integrity: sha512-G6T0ZX48xgozx7587koeX9Ys2NYy6Gmv//P89sEte9V9whIapMNF4idKxnW2QtCcLiTWlb/wfCabAtAFWhhBow==}
     engines: {node: '>=16 || 14 >=14.17'}
 
+  minimist@1.2.8:
+    resolution: {integrity: sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==}
+
   minipass@3.3.6:
     resolution: {integrity: sha512-DxiNidxSEK+tHG6zOIklvNOwm3hvCrbUrdtzY74U6HKTJxvIDfOUL5W5P2Ghd3DTkhhKPYGqeNUIh5qcM4YBfw==}
     engines: {node: '>=8'}
@@ -2164,6 +2175,9 @@ packages:
     engines: {node: ^10 || ^12 || ^13.7 || ^14 || >=15.0.1}
     hasBin: true
 
+  neo-async@2.6.2:
+    resolution: {integrity: sha512-Yd3UES5mWCSqR+qNT93S3UoYUkqAZ9lLg8a7g9rimsWmYGK8cVToA4/sF3RrshdyV3sAGMXVUmpMYOw+dLpOuw==}
+
   neotraverse@0.6.18:
     resolution: {integrity: sha512-Z4SmBUweYa09+o6pG+eASabEpP6QkQ70yHj351pQoEXIs8uHbaU2DWVmzBANKgflPa47A50PtB2+NgRpQvr7vA==}
     engines: {node: '>= 10'}
@@ -2686,6 +2700,10 @@ packages:
     resolution: {integrity: sha512-LbrmJOMUSdEVxIKvdcJzQC+nQhe8FUZQTXQy6+I75skNgn3OoQ0DZA8YnFa7gp8tqtL3KPf1kmo0R5DoApeSGQ==}
     engines: {node: '>=0.10.0'}
 
+  source-map@0.6.1:
+    resolution: {integrity: sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==}
+    engines: {node: '>=0.10.0'}
+
   source-map@0.7.6:
     resolution: {integrity: sha512-i5uvt8C3ikiWeNZSVZNWcfZPItFQOsYTUAOkcUPGd8DqDy1uOUikjt5dG+uRlwyvR108Fb9DOd4GvXfT0N2/uQ==}
     engines: {node: '>= 12'}
@@ -2819,6 +2837,11 @@ packages:
   ufo@1.6.1:
     resolution: {integrity: sha512-9a4/uxlTWJ4+a5i0ooc1rU7C7YOw3wT+UGqdeNNHWnOF9qcMBgLRS+4IYUqbczewFx4mLEig6gawh7X6mFlEkA==}
 
+  uglify-js@3.19.3:
+    resolution: {integrity: sha512-v3Xu+yuwBXisp6QYTcH4UbH+xYJXqnq2m/LtQVWKWzYc1iehYnLixoQDN9FH6/j9/oybfd6W9Ghwkl8+UMKTKQ==}
+    engines: {node: '>=0.8.0'}
+    hasBin: true
+
   ultrahtml@1.6.0:
     resolution: {integrity: sha512-R9fBn90VTJrqqLDwyMph+HGne8eqY1iPfYhPzZrvKpIfwkWZbcYlfpsb8B9dTvBfpy1/hqAD7Wi8EKfP9e8zdw==}
 
@@ -3151,6 +3174,9 @@ packages:
     resolution: {integrity: sha512-c9bZp7b5YtRj2wOe6dlj32MK+Bx/M/d+9VB2SHM1OtsUHR0aV0tdP6DWh/iMt0kWi1t5g1Iudu6hQRNd1A4PVA==}
     engines: {node: '>=18'}
 
+  wordwrap@1.0.0:
+    resolution: {integrity: sha512-gvVzJFlPycKc5dZN4yPkP8w7Dc37BtP1yczEneOb4uq34pXZcvrtRTmWV8W+Ume+XCxKgbjM+nevkyFPMybd4Q==}
+
   wrap-ansi@7.0.0:
     resolution: {integrity: sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==}
     engines: {node: '>=10'}
@@ -5067,6 +5093,15 @@ snapshots:
       ufo: 1.6.1
       uncrypto: 0.1.3
 
+  handlebars@4.7.8:
+    dependencies:
+      minimist: 1.2.8
+      neo-async: 2.6.2
+      source-map: 0.6.1
+      wordwrap: 1.0.0
+    optionalDependencies:
+      uglify-js: 3.19.3
+
   has-symbols@1.1.0: {}
 
   has-tostringtag@1.0.2:
@@ -5842,6 +5877,8 @@ snapshots:
     dependencies:
       brace-expansion: 2.0.2
 
+  minimist@1.2.8: {}
+
   minipass@3.3.6:
     dependencies:
       yallist: 4.0.0
@@ -5880,6 +5917,8 @@ snapshots:
 
   nanoid@3.3.11: {}
 
+  neo-async@2.6.2: {}
+
   neotraverse@0.6.18: {}
 
   nlcst-to-string@4.0.0:
@@ -6468,6 +6507,8 @@ snapshots:
 
   source-map@0.5.7: {}
 
+  source-map@0.6.1: {}
+
   source-map@0.7.6: {}
 
   space-separated-tokens@2.0.2: {}
@@ -6624,6 +6665,9 @@ snapshots:
 
   ufo@1.6.1: {}
 
+  uglify-js@3.19.3:
+    optional: true
+
   ultrahtml@1.6.0: {}
 
   uncrypto@0.1.3: {}
@@ -6900,6 +6944,8 @@ snapshots:
     dependencies:
       string-width: 7.2.0
 
+  wordwrap@1.0.0: {}
+
   wrap-ansi@7.0.0:
     dependencies:
       ansi-styles: 4.3.0
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index 7de7eaa6..59e98ce8 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -1,2 +1,2 @@
 overrides:
-  devalue@<5.3.2: '>=5.3.2'
+  devalue@<5.3.2: ">=5.3.2"
diff --git a/src/components/Footer.astro b/src/components/Footer.astro
index 0f00514e..e99892df 100644
--- a/src/components/Footer.astro
+++ b/src/components/Footer.astro
@@ -7,15 +7,39 @@ const currentYear = new Date().getFullYear();
 
 <footer>
   <HorizontalContainer>
-    <div class="flex justify-end pb-16 pt-12">
-      <p
-        class="tracking-tight text-gray dark:text-gray md:text-base lg:text-lg"
-      >
-        Copyright &copy; {currentYear}
-        <Link href="https://determinate.systems" class="hover:text-primary">
-          Determinate Systems, Inc.
-        </Link>
-      </p>
+    <div class="pb-16 pt-12">
+      <div class="flex items-center justify-between">
+        <div class="flex items-center gap-4">
+          <strong>AI tools</strong>
+          <ul class="flex items-center gap-2">
+            {
+              ["llms.txt", "llms-small.txt", "llms-full.txt"].map((file) => (
+                <li>
+                  <a
+                    href={`/${file}`}
+                    class="text-sm text-gray duration-hover hover:text-nix-light-blue dark:hover:text-orange"
+                  >
+                    <code>{file}</code>
+                  </a>
+                </li>
+              ))
+            }
+          </ul>
+        </div>
+        <div>
+          <p
+            class="tracking-tight text-gray dark:text-gray md:text-base lg:text-lg"
+          >
+            Copyright &copy; {currentYear}
+            <Link
+              href="https://determinate.systems"
+              class="duration-hover hover:text-primary dark:hover:text-orange"
+            >
+              Determinate Systems, Inc.
+            </Link>
+          </p>
+        </div>
+      </div>
     </div>
   </HorizontalContainer>
 </footer>
diff --git a/src/components/FormattedDate.astro b/src/components/FormattedDate.astro
index 8f595901..38ae6634 100644
--- a/src/components/FormattedDate.astro
+++ b/src/components/FormattedDate.astro
@@ -8,7 +8,7 @@ const { date } = Astro.props;
 
 <time datetime={date.toISOString()}>
   {
-    date.toLocaleDateString("en-us", {
+    date.toLocaleDateString("en-US", {
       year: "numeric",
       month: "short",
       day: "numeric",
diff --git a/src/lib/utils.ts b/src/lib/utils.ts
index 1fd19261..5fa00de5 100644
--- a/src/lib/utils.ts
+++ b/src/lib/utils.ts
@@ -15,3 +15,11 @@ export const startPagePath = (slug: string): string => {
 const pagePath = (collection: string, slug: string): string => {
   return `/${collection}/${slug}`;
 };
+
+export const formatDate = (date: Date): string => {
+  return date.toLocaleDateString("en-US", {
+    year: "numeric",
+    month: "long",
+    day: "numeric",
+  });
+};
diff --git a/src/pages/llms-full.txt.ts b/src/pages/llms-full.txt.ts
new file mode 100644
index 00000000..a1fd0b59
--- /dev/null
+++ b/src/pages/llms-full.txt.ts
@@ -0,0 +1,52 @@
+import { conceptPagePath, startPagePath } from "../lib/utils";
+import { site } from "../site";
+import { FORMATS } from "./llms.txt";
+import type { APIRoute } from "astro";
+import { getCollection } from "astro:content";
+import Handlebars from "handlebars";
+import fs from "node:fs";
+import path from "node:path";
+
+const { url: root, title, description: tagline, llms } = site;
+
+const templateFile = fs.readFileSync(
+  path.join(process.cwd(), "src/templates/llms-full.txt.hbs"),
+  "utf-8",
+);
+
+const template = Handlebars.compile(templateFile);
+
+export const GET: APIRoute = async () => {
+  const startPages = await getCollection("start");
+  const conceptPages = await getCollection("concepts");
+
+  const content = template({
+    root,
+    title,
+    system:
+      "This is the complete documentation for Zero to Nix, including the learning journey (start) and concept pages.",
+    instructions:
+      "Learning journey (start) and concept page items begin and end with a --- and all page titles are in bold.",
+    tagline,
+    description: llms.description,
+    startPages: startPages.map(({ data: { title }, slug, body }) => ({
+      title,
+      href: `${root}/${startPagePath(slug)}`,
+      content: body,
+    })),
+    conceptPages: conceptPages.map(({ data: { title }, slug, body }) => ({
+      title,
+      href: `${root}/${conceptPagePath(slug)}`,
+      content: body,
+    })),
+    otherFormats: [FORMATS.small, FORMATS.standard],
+  });
+
+  return new Response(content, {
+    headers: {
+      "Content-Type": "text/plain; charset=utf-8",
+    },
+  });
+};
+
+export const prerender = true;
diff --git a/src/pages/llms-small.txt.ts b/src/pages/llms-small.txt.ts
new file mode 100644
index 00000000..4fe24b50
--- /dev/null
+++ b/src/pages/llms-small.txt.ts
@@ -0,0 +1,42 @@
+import { site } from "../site";
+import { FORMATS } from "./llms.txt";
+import type { APIRoute } from "astro";
+import { getCollection } from "astro:content";
+import Handlebars from "handlebars";
+import fs from "node:fs";
+import path from "node:path";
+
+const { url: root, title, llms } = site;
+
+const templateFile = fs.readFileSync(
+  path.join(process.cwd(), "src/templates/llms-small.txt.hbs"),
+  "utf-8",
+);
+
+const template = Handlebars.compile(templateFile);
+
+export const GET: APIRoute = async () => {
+  const startPages = await getCollection("start");
+  const conceptPages = await getCollection("concepts");
+
+  const content = template({
+    root,
+    title,
+    description: llms.description,
+    startPages: startPages.map(({ data: { title } }) => ({
+      title,
+    })),
+    conceptPages: conceptPages.map(({ data: { title } }) => ({
+      title,
+    })),
+    otherFormats: [FORMATS.standard, FORMATS.full],
+  });
+
+  return new Response(content, {
+    headers: {
+      "Content-Type": "text/plain; charset=utf-8",
+    },
+  });
+};
+
+export const prerender = true;
diff --git a/src/pages/llms.txt.ts b/src/pages/llms.txt.ts
new file mode 100644
index 00000000..3c9769a6
--- /dev/null
+++ b/src/pages/llms.txt.ts
@@ -0,0 +1,66 @@
+import { conceptPagePath, startPagePath } from "../lib/utils";
+import { site } from "../site";
+import type { APIRoute } from "astro";
+import { getCollection } from "astro:content";
+import Handlebars from "handlebars";
+import fs from "node:fs";
+import path from "node:path";
+
+const { url: root, title, description: tagline, llms } = site;
+
+export const FORMATS: Record<
+  string,
+  { root: string; file: string; description: string }
+> = {
+  standard: {
+    root,
+    file: "llms.txt",
+    description: "the main version",
+  },
+  small: {
+    root,
+    file: "llms-small.txt",
+    description: "compact structure-only version",
+  },
+  full: {
+    root,
+    file: "llms-full.txt",
+    description: "complete content in one file",
+  },
+};
+
+const templateFile = fs.readFileSync(
+  path.join(process.cwd(), "src/templates/llms.txt.hbs"),
+  "utf-8",
+);
+
+const template = Handlebars.compile(templateFile);
+
+export const GET: APIRoute = async () => {
+  const startPages = await getCollection("start");
+  const conceptPages = await getCollection("concepts");
+
+  const content = template({
+    root,
+    title,
+    tagline,
+    description: llms.description,
+    startPages: startPages.map(({ data: { title }, slug }) => ({
+      title,
+      href: `${root}/${startPagePath(slug)}`,
+    })),
+    conceptPages: conceptPages.map(({ data: { title }, slug }) => ({
+      title,
+      href: `${root}/${conceptPagePath(slug)}`,
+    })),
+    otherFormats: [FORMATS.small, FORMATS.full],
+  });
+
+  return new Response(content, {
+    headers: {
+      "Content-Type": "text/plain; charset=utf-8",
+    },
+  });
+};
+
+export const prerender = true;
diff --git a/src/site.ts b/src/site.ts
index 6294b277..30ede8ee 100644
--- a/src/site.ts
+++ b/src/site.ts
@@ -32,7 +32,11 @@ type Language =
 
 type Site = {
   title: string;
+  url: string;
   description: string;
+  llms: {
+    description: string;
+  };
   githubUrl: string;
   languages: Language[];
   defaultLanguage: Language;
@@ -49,7 +53,12 @@ type Site = {
 
 export const site: Site = {
   title: "Zero to Nix",
+  url: "https://zero-to-nix.com",
   description: "Your guide to learning Nix and flakes",
+  llms: {
+    description:
+      "Zero to Nix is a flake-centric resource for learning Nix created by [Determinate Systems](https://determinate.systems/llms.txt). It takes you on a [learning journey](#start-pages) from installing Nix to exploring Nix development environments to building Nix packages and more. It also offers a series of [concept pages](#concept-pages) covering some of the trickier corners of Nix.",
+  },
   githubUrl: "https://github.com/DeterminateSystems/zero-to-nix",
   languages: ["C++", "Go", "Haskell", "JavaScript", "Python", "Rust", "Scala"],
   defaultLanguage: "JavaScript",
diff --git a/src/templates/llms-full.txt.hbs b/src/templates/llms-full.txt.hbs
new file mode 100644
index 00000000..52eba833
--- /dev/null
+++ b/src/templates/llms-full.txt.hbs
@@ -0,0 +1,55 @@
+<SYSTEM>{{system}}</SYSTEM>
+
+<INSTRUCTIONS>{{instructions}}</INSTRUCTIONS>
+
+# {{title}}
+
+> {{tagline}}
+
+{{description}}
+
+## Start pages
+
+---
+
+{{#each startPages}}
+**{{{this.title}}}**
+
+Published: {{this.date}}
+URL: {{this.href}}
+
+{{{this.content}}}
+
+{{#unless @last}}
+---
+
+{{/unless}}
+{{/each}}
+---
+
+## Concept pages
+
+---
+
+{{#each conceptPages}}
+**{{{this.title}}}**
+
+Published: {{this.date}}
+URL: {{this.href}}
+
+{{{this.content}}}
+
+{{#unless @last}}
+---
+
+{{/unless}}
+{{/each}}
+---
+
+## Other formats
+
+For additional LLM-oriented manifests, see also:
+
+{{#each otherFormats}}
+- [`{{this.file}}`]({{root}}/{{this.file}}) ({{this.description}})
+{{/each}}
diff --git a/src/templates/llms-small.txt.hbs b/src/templates/llms-small.txt.hbs
new file mode 100644
index 00000000..93946e5f
--- /dev/null
+++ b/src/templates/llms-small.txt.hbs
@@ -0,0 +1,27 @@
+# {{title}}
+
+{{description}}
+
+## Start pages
+
+These pages take you on a Nix journey from installing Nix through accomplishing meaningful tasks with Nix:
+
+{{#each startPages}}
+- {{this.title}}
+{{/each}}
+
+## Concept pages
+
+These pages provide a more theoretical take on some of the trickier corners of Nix:
+
+{{#each conceptPages}}
+- {{this.title}}
+{{/each}}
+
+## Other formats
+
+For additional LLM-oriented manifests, see also:
+
+{{#each otherFormats}}
+- [`{{this.file}}`]({{root}}/{{this.file}}) ({{this.description}})
+{{/each}}
diff --git a/src/templates/llms.txt.hbs b/src/templates/llms.txt.hbs
new file mode 100644
index 00000000..9423ccaa
--- /dev/null
+++ b/src/templates/llms.txt.hbs
@@ -0,0 +1,31 @@
+# {{title}}
+
+> {{tagline}}
+
+{{description}}
+
+## Start pages
+
+These pages take you on a Nix journey from installing Nix through
+accomplishing meaningful tasks with Nix:
+
+{{#each startPages}}
+- [{{this.title}}]({{this.href}})
+{{/each}}
+
+## Concept pages
+
+These pages provide a more theoretical take on some of the
+trickier corners of Nix:
+
+{{#each conceptPages}}
+- [{{this.title}}]({{this.href}})
+{{/each}}
+
+## Other formats
+
+For additional LLM-oriented manifests, see also:
+
+{{#each otherFormats}}
+- [`{{this.file}}`]({{root}}/{{this.file}}) ({{this.description}})
+{{/each}}