docs(site): document self-hosted and offline player builds (#1680)

site/src/content/docs/how-to/installation.mdx

@@ -211,6 +211,10 @@ Content-Security-Policy:
 
 <DocsLinkCard slug="concepts/skins" anchor="styling" description="Some skins expose CSS custom properties">Skins</DocsLinkCard>
 
+<FrameworkCase frameworks={["html"]}>
+<DocsLinkCard slug="how-to/self-host-the-player" description="Serve the player from your own origin for offline or restricted-network deployments">Self-host the player</DocsLinkCard>
+</FrameworkCase>
+
 ----
 
 That's it! You now have a fully functional Video.js player. Go forth and play.

site/src/content/docs/how-to/self-host-the-player.mdx

@@ -0,0 +1,64 @@
+---
+title: Self-host the player
+description: Serve the Video.js HTML player from your own origin for offline, air-gapped, or restricted-network deployments
+---
+
+import Aside from '@/components/Aside.astro';
+import DocsLink from '@/components/docs/DocsLink.astro';
+
+By default, the <DocsLink slug="how-to/installation">installation</DocsLink> flow loads the player from a public CDN. For offline, air-gapped, or locked-down deployments, you can serve everything from your own origin instead. Pick one of the options below.
+
+## Bundle a single file (recommended)
+
+Install the package, put the player's imports into an entry file, then let any bundler produce one self-contained module you can host anywhere. For the default video player, that's:
+
+```js title="player.js"
+import '@videojs/html/video/player';
+import '@videojs/html/video/skin';
+```
+
+```bash
+npm install @videojs/html
+npx esbuild player.js --bundle --format=esm --minify --sourcemap --outfile=public/player.js
+```
+
+Load the output with `type="module"`:
+
+```html
+<script type="module" src="/player.js"></script>
+```
+
+You get one file (plus a sourcemap), no runtime requests to a CDN, and only the features you import. Any bundler works (Vite, Rollup, webpack) as long as the output stays ESM.
+
+## Mirror the prebuilt CDN files
+
+To skip the bundler, copy the prebuilt CDN bundle to your server as-is.
+
+<Aside type="caution" title="Copy the whole cdn/ directory">
+The CDN entry files like `video.js` and `media/hls-video.js` are not standalone. They import shared, content-hashed chunks (`default-*.js`, `ui-*.js`, and more) that live alongside them. Copying a single file breaks at runtime, so mirror the entire `cdn/` directory and keep its layout intact.
+</Aside>
+
+```bash
+npm install @videojs/html
+mkdir -p public
+cp -r node_modules/@videojs/html/cdn public/videojs
+```
+
+Then point the script tag at your copy instead of the CDN:
+
+```html
+<script type="module" src="/videojs/video.js"></script>
+```
+
+The file name matches your player: `video.js`, `audio.js`, `background.js`, and so on. Every option is present in the `cdn/` folder you copied.
+
+Hashed chunk names change between releases, so re-copy the directory whenever you upgrade `@videojs/html`.
+
+## HLS and other media types
+
+HLS and other non-default media need their own module on top of the player. Match it in your self-hosted build:
+
+- **Bundle:** add the media import to your entry file (`import '@videojs/html/media/hls-video';`) and use the matching `<hls-video>` element with your `.m3u8` source.
+- **Mirror:** serve the media file too and add its script tag (`<script type="module" src="/videojs/media/hls-video.js"></script>`).
+
+Without the media module the player UI renders but the video never loads, with no console error.

site/src/docs.config.ts

@@ -46,7 +46,11 @@ export const sidebar: Sidebar = [
     sidebarLabel: 'How to',
     llmsDescription:
       'Task-oriented guides with step-by-step instructions to achieve a specific outcome by applying one or more concepts. Each guide may assume you already understand the relevant concepts.',
-    contents: [{ slug: 'how-to/customize-skins' }, { slug: 'how-to/build-your-own-component' }],
+    contents: [
+      { slug: 'how-to/customize-skins' },
+      { slug: 'how-to/build-your-own-component' },
+      { slug: 'how-to/self-host-the-player', frameworks: ['html'] },
+    ],
   },
   {
     sidebarLabel: 'Components',