diff --git a/.gitignore b/.gitignore
index f3c24951..80f11cf7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,7 +6,6 @@ sites/*/dist
 sites/*/.astro
 sites/*/.cache
 build/
-.docusaurus/
 
 # Misc
 .DS_Store
diff --git a/cloudflare/_headers b/cloudflare/_headers
index a37ea054..7653e226 100644
--- a/cloudflare/_headers
+++ b/cloudflare/_headers
@@ -2,8 +2,8 @@
 # is copied into the build output by the publish workflow, so that it is not
 # uploaded to S3/CloudFront where it would be publicly readable at /_headers.
 #
-# Unlike the docusaurus build, astro emits a single content hashed asset
-# directory shared by every language, so no per locale rules are needed.
+# The build emits a single content hashed asset directory shared by every
+# language, so no per locale rules are needed.
 
 # Content hashed build output (js, css, fonts). The file name changes with the
 # content, so these can be cached forever.
diff --git a/cloudflare/_redirects b/cloudflare/_redirects
index 07d47db9..d758d5ef 100644
--- a/cloudflare/_redirects
+++ b/cloudflare/_redirects
@@ -1,7 +1,7 @@
 # Redirects for legacy URLs and routes the site no longer serves directly.
 
 # The api reference and the runner docs are separate products, published in
-# english only. Docusaurus served an empty localized copy of them.
+# english only, so they have no localized copy.
 /zh-cn/api/* /api/:splat 301
 /zh-tw/api/* /api/:splat 301
 /zh-cn/runner/* /runner/:splat 301
diff --git a/packages/content-loader/src/categories.ts b/packages/content-loader/src/categories.ts
index 681b36cb..b49a9033 100644
--- a/packages/content-loader/src/categories.ts
+++ b/packages/content-loader/src/categories.ts
@@ -2,7 +2,7 @@ import { promises as fs } from 'node:fs';
 import path from 'node:path';
 import type { Segment } from './segments.js';
 
-/** `_category_.json`, the docusaurus per directory sidebar metadata. */
+/** `_category_.json`, the per directory sidebar metadata. */
 export interface CategoryMeta {
   label?: string;
   position?: number;
@@ -41,7 +41,7 @@ export function slugifyLabel(label: string): string {
 }
 
 /**
- * Route id of the index page docusaurus generates for a category.
+ * Route id of the index page generated for a category.
  *
  * Top level categories are declared by `sidebars.js` without a slug and end up
  * under `/category/<label>`; nested ones keep the slug of their
diff --git a/packages/content-loader/src/index.ts b/packages/content-loader/src/index.ts
index 5791e31e..45874451 100644
--- a/packages/content-loader/src/index.ts
+++ b/packages/content-loader/src/index.ts
@@ -74,7 +74,7 @@ const transformVersion = '2';
 
 /**
  * Loads the gitea documentation straight out of the content directories, which
- * keep the layout the docusaurus site used, instead of copying them into
+ * keep their original layout, instead of copying them into
  * `src/content/docs`. Every source file is mapped to its final route by the
  * product matrix, so the release and translation workflows are untouched.
  */
@@ -190,7 +190,7 @@ async function parseFile(
 
   const substituted = applyVariables(contents, segment.version.variables);
   const { frontmatter, body: rawBody } = splitFrontmatter(substituted);
-  // a translated `slug` moves the page, exactly like it did under docusaurus
+  // a `slug` moves the page
   const id = routeIdOf(segment, routeSuffix(segment, file, asString(frontmatter.slug)));
   const { title: headingTitle, body } = extractTitle(rawBody);
   const title = asString(frontmatter.title) ?? headingTitle;
@@ -289,7 +289,7 @@ async function renderPage(
   return broken;
 }
 
-/** The index page docusaurus generated for a category. */
+/** The index page generated for a category. */
 interface ParsedCategory {
   segment: Segment;
   id: string;
@@ -301,7 +301,7 @@ interface ParsedCategory {
 }
 
 /**
- * Recreates the index pages docusaurus generated from `_category_.json`, so
+ * Recreates the index pages generated from `_category_.json`, so
  * that `/category/installation/` and `/usage/actions/` keep resolving.
  */
 async function resolveCategories(
diff --git a/packages/content-loader/src/links.ts b/packages/content-loader/src/links.ts
index 7513d9d9..bb566911 100644
--- a/packages/content-loader/src/links.ts
+++ b/packages/content-loader/src/links.ts
@@ -1,6 +1,6 @@
 /**
  * Rewrites the relative markdown links of the sources to the urls of the built
- * site. Docusaurus resolved `../administration/config-cheat-sheet.md` against
+ * site. A link such as `../administration/config-cheat-sheet.md` is resolved against
  * the directory of the file it appeared in; astro serves urls, so the target
  * has to be looked up in the route table of the version.
  */
@@ -35,7 +35,7 @@ function rewriteTarget(target: string, context: LinkContext): string {
   const [pathname = '', hash = ''] = splitHash(target);
   if (!/\.mdx?$/.test(pathname)) return target;
 
-  // docusaurus resolved a link against the directory of the file first and
+  // a link is resolved against the directory of the file first and
   // against the root of the version second, both spellings are in the sources
   const route =
     context.resolve(normalize(`${context.dir}/${pathname}`)) ?? context.resolve(normalize(pathname));
diff --git a/packages/content-loader/src/markdown.ts b/packages/content-loader/src/markdown.ts
index b45a32c8..9db71d64 100644
--- a/packages/content-loader/src/markdown.ts
+++ b/packages/content-loader/src/markdown.ts
@@ -16,8 +16,8 @@ export function splitFrontmatter(contents: string): ParsedFile {
 }
 
 /**
- * Replaces the `@name@` placeholders with the values of the version, the same
- * substitution the docusaurus markdown preprocessor did.
+ * Replaces the `@name@` placeholders with the values of the version, which
+ * is how the versioned docs reference release specific values.
  */
 export function applyVariables(contents: string, variables?: VersionVariables): string {
   if (!variables) return contents;
@@ -45,7 +45,7 @@ export function extractTitle(body: string): { title?: string; body: string } {
 }
 
 /**
- * Docusaurus admonitions to starlight asides. The two vocabularies overlap for
+ * Admonitions (`:::note`) to starlight asides. The two vocabularies overlap for
  * `note`, `tip`, `caution` and `danger`; `warning` and `info` have to be mapped
  * and titles move from `:::note Title` to `:::note[Title]`.
  */
diff --git a/packages/content-loader/src/products.ts b/packages/content-loader/src/products.ts
index 048c6e11..0473dc3c 100644
--- a/packages/content-loader/src/products.ts
+++ b/packages/content-loader/src/products.ts
@@ -60,7 +60,7 @@ export interface ProductDef {
   /** Languages the product is published in, in display order. */
   locales: LocaleId[];
   versions: VersionDef[];
-  /** Recreate the docusaurus `_category_.json` index pages for the product. */
+  /** Recreate the `_category_.json` index pages for the product. */
   categoryPages?: boolean;
   /** Set for products served by another deployment (enterprise). */
   externalBaseUrl?: string;
diff --git a/packages/content-loader/src/segments.ts b/packages/content-loader/src/segments.ts
index e24ac1dc..038326cb 100644
--- a/packages/content-loader/src/segments.ts
+++ b/packages/content-loader/src/segments.ts
@@ -84,7 +84,7 @@ export function segmentOf(segments: Segment[], file: string): Segment | undefine
 }
 
 /**
- * Route id of a source file, mirroring the docusaurus routing rules:
+ * Route id of a source file, following these rules:
  * `index` files address their directory, a relative `slug` replaces the last
  * path segment and `slug: /` addresses the root of the version.
  */
@@ -106,8 +106,7 @@ export function routeSuffix(segment: Segment, file: string, slug?: string): stri
 
 /**
  * Route id of a source file. Translations follow the route of their english
- * counterpart, a translated `slug` never moves a page, which is how docusaurus
- * treated the localized trees as well.
+ * counterpart, a translated `slug` never moves a page.
  */
 export function routeIdOf(segment: Segment, suffix: string[]): string {
   // the data store rejects empty ids, starlight maps `index` to the root
diff --git a/packages/content-loader/src/sidebar.ts b/packages/content-loader/src/sidebar.ts
index a31febe6..2770e4b3 100644
--- a/packages/content-loader/src/sidebar.ts
+++ b/packages/content-loader/src/sidebar.ts
@@ -1,6 +1,6 @@
 /**
  * Builds one sidebar per (product, version, language) out of the loaded pages,
- * reproducing what docusaurus derived from `_category_.json` and from the
+ * deriving it from `_category_.json` and from the
  * handwritten sidebar files of the runner docs.
  */
 
@@ -44,12 +44,12 @@ export interface SidebarGroup {
 
 export type SidebarEntry = SidebarLink | SidebarGroup;
 
-/** A docusaurus sidebar file, as used by the runner docs. */
-export type DocusaurusSidebarItem =
+/** A hand written sidebar file, as used by the runner docs. */
+export type SidebarSourceItem =
   | string
   | { type: 'doc'; id: string; label?: string }
   | { type: 'autogenerated'; dirName: string }
-  | { type: 'category'; label: string; collapsed?: boolean; items: DocusaurusSidebarItem[] };
+  | { type: 'category'; label: string; collapsed?: boolean; items: SidebarSourceItem[] };
 
 const last = Number.MAX_SAFE_INTEGER;
 
@@ -66,11 +66,11 @@ function labelFromDirname(name: string): string {
 
 /**
  * Builds the sidebars of every group of pages, keyed by the route prefix of the
- * group. `manual` provides the docusaurus sidebar of the groups that ship one.
+ * group. `manual` provides the hand written sidebar of the groups that ship one.
  */
 export function buildSidebars(
   pages: SidebarPage[],
-  manual: Map<string, DocusaurusSidebarItem[]> = new Map(),
+  manual: Map<string, SidebarSourceItem[]> = new Map(),
 ): Map<string, SidebarEntry[]> {
   const groups = new Map<string, SidebarPage[]>();
   for (const page of pages) {
@@ -84,19 +84,19 @@ export function buildSidebars(
     const key = `${groupPages[0]!.meta.product}@${groupPages[0]!.meta.version}`;
     const items = manual.get(key);
     const tree = treeOf(groupPages);
-    sidebars.set(prefix, items ? fromDocusaurus(items, groupPages, tree) : tree.build(''));
+    sidebars.set(prefix, items ? fromSidebarSource(items, groupPages, tree) : tree.build(''));
   }
   return sidebars;
 }
 
 interface Tree {
-  /** Entries of a directory, ordered as docusaurus ordered them. */
+  /** Entries of a directory, ordered by their position. */
   build(dir: string): SidebarEntry[];
   /** Localized label of a directory, from its `_category_.json`. */
   label(dir: string): string;
 }
 
-/** Sidebar of a directory tree, ordered by `sidebar_position` as docusaurus did. */
+/** Sidebar of a directory tree, ordered by `sidebar_position`. */
 function treeOf(pages: SidebarPage[]): Tree {
   const categories = new Map<string, SidebarPage>();
   for (const page of pages) {
@@ -148,9 +148,9 @@ function treeOf(pages: SidebarPage[]): Tree {
   return { build, label };
 }
 
-/** Sidebar described by a docusaurus sidebar file, used by the runner docs. */
-function fromDocusaurus(
-  items: DocusaurusSidebarItem[],
+/** Sidebar described by a hand written sidebar file, used by the runner docs. */
+function fromSidebarSource(
+  items: SidebarSourceItem[],
   pages: SidebarPage[],
   tree: Tree,
 ): SidebarEntry[] {
@@ -159,7 +159,7 @@ function fromDocusaurus(
     byDocId.set([page.meta.dir, page.meta.name].filter(Boolean).join('/'), page);
   }
 
-  const convert = (item: DocusaurusSidebarItem): SidebarEntry | undefined => {
+  const convert = (item: SidebarSourceItem): SidebarEntry | undefined => {
     if (typeof item === 'string') {
       const page = byDocId.get(item);
       return page && link(page);
@@ -167,7 +167,7 @@ function fromDocusaurus(
     if (item.type === 'doc') {
       const page = byDocId.get(item.id);
       // the label of the sidebar file is english, the title of a translated
-      // page is already localized (docusaurus translated it from the json)
+      // page is already localized (translated from the json)
       return page && link(page, page.meta.locale === defaultLocale ? (item.label ?? page.title) : page.title);
     }
     if (item.type === 'autogenerated') {
@@ -182,7 +182,7 @@ function fromDocusaurus(
     }
 
     // a category whose only child is an autogenerated directory keeps the
-    // translated label of the directory, like the docusaurus sidebars did
+    // translated label of the directory, like the sidebar files do
     const single =
       item.items.length === 1 && typeof item.items[0] === 'object' && 'dirName' in item.items[0]
         ? item.items[0]
diff --git a/scripts/cut-version.mjs b/scripts/cut-version.mjs
index e25dd377..f1c205cc 100644
--- a/scripts/cut-version.mjs
+++ b/scripts/cut-version.mjs
@@ -1,6 +1,6 @@
 #!/usr/bin/env node
 /**
- * Cuts a documentation version, the replacement for `docusaurus docs:version`.
+ * Cuts a documentation version: freezes the current docs as a released version.
  *
  *   node scripts/cut-version.mjs docs 1.28     # freezes docs/ as 1.28
  *   node scripts/cut-version.mjs runner 4      # freezes runner-docs/ as 4
diff --git a/sites/docs/README.md b/sites/docs/README.md
index 59a5d465..01b7eef6 100644
--- a/sites/docs/README.md
+++ b/sites/docs/README.md
@@ -49,17 +49,17 @@ of every file, the second normalizes and renders it:
 
 - substitutes the version variables (`@version@`, `@dockerVersion@`, ...)
 - lifts the leading `# heading` into the starlight `title`
-- maps `sidebar_position` to `sidebar.order` and honours the docusaurus `slug`,
+- maps `sidebar_position` to `sidebar.order` and honours the `slug`,
   including the translations that moved a page
 - rewrites the relative `*.md` links to urls, resolving them against the file
   and against the version root, and reports the ones that do not resolve
-- turns the docusaurus admonitions into starlight asides (`:::warning` to
+- turns the admonitions into starlight asides (`:::warning` to
   `:::caution`, `:::info` to `:::note`, `:::note Title` to `:::note[Title]`)
 - recreates the index pages of `_category_.json` (`/category/installation/`,
   `/usage/actions/`)
 
 Sidebars are built per (product, version, language) from `_category_.json` and
-from the docusaurus sidebar files (`sidebars.js`, `versioned_sidebars/`,
+from the sidebar files (`sidebars.js`, `versioned_sidebars/`,
 `runner-sidebars.js`, `runner-docs_versioned_sidebars/`), and selected in
 `src/routeData.ts`, since starlight only supports a single static sidebar.
 
diff --git a/sites/docs/src/components/MarkdownContent.astro b/sites/docs/src/components/MarkdownContent.astro
index bc21810f..779fc297 100644
--- a/sites/docs/src/components/MarkdownContent.astro
+++ b/sites/docs/src/components/MarkdownContent.astro
@@ -4,7 +4,7 @@ import { t } from '../config/strings';
 import { searchFilters } from '../lib/search';
 
 /**
- * Translated pages carry the notice the docusaurus site showed: a translation
+ * Translated pages carry the notice: a translation
  * can lag behind the english original, so point at it and at the translation
  * guide. Fallback pages already get starlight's own notice.
  *
diff --git a/sites/docs/src/config/api.ts b/sites/docs/src/config/api.ts
index 8ec45175..aee3b3ef 100644
--- a/sites/docs/src/config/api.ts
+++ b/sites/docs/src/config/api.ts
@@ -81,7 +81,7 @@ function hyphenateOperationIds(document: SwaggerDocument): void {
  * `update_api_docs.sh` rewrites `basePath` of the swagger documents to the full
  * `https://gitea.com/api/v1` url, which redoc accepted but is not valid swagger
  * 2.0: the host belongs into `host` and the scheme into `schemes`. Normalize a
- * copy instead of touching the sources, which the docusaurus site still reads.
+ * copy instead of touching the sources, which other tooling still reads.
  *
  * The openapi 3.0 documents keep the url in `servers`, where a full url is
  * valid, so only the operation ids and the tags are touched for those.
diff --git a/sites/docs/src/lib/sidebars.ts b/sites/docs/src/lib/sidebars.ts
index 1fdef520..d01bafa8 100644
--- a/sites/docs/src/lib/sidebars.ts
+++ b/sites/docs/src/lib/sidebars.ts
@@ -4,7 +4,7 @@ import path from 'node:path';
 import {
   buildSidebars,
   products,
-  type DocusaurusSidebarItem,
+  type SidebarSourceItem,
   type SidebarEntry,
   type SidebarPage,
 } from '@gitea-docs/content-loader';
@@ -12,21 +12,21 @@ import { getCollection } from 'astro:content';
 import { repoRoot } from '../config/paths';
 
 /**
- * Sidebar files of the docusaurus site: the top level order of the docs and the
+ * Sidebar files: the top level order of the docs and the
  * handwritten sidebars of the runner, one per version. Read as is, so cutting a
  * version keeps needing no change here.
  */
-function docusaurusSidebars(): Map<string, DocusaurusSidebarItem[]> {
-  const sidebars = new Map<string, DocusaurusSidebarItem[]>();
+function sidebarSources(): Map<string, SidebarSourceItem[]> {
+  const sidebars = new Map<string, SidebarSourceItem[]>();
   const require = createRequire(import.meta.url);
 
-  const read = (file: string): Record<string, DocusaurusSidebarItem[]> | undefined => {
+  const read = (file: string): Record<string, SidebarSourceItem[]> | undefined => {
     const full = path.join(repoRoot, file);
     if (!existsSync(full)) return undefined;
     try {
       return file.endsWith('.json')
-        ? (JSON.parse(readFileSync(full, 'utf-8')) as Record<string, DocusaurusSidebarItem[]>)
-        : (require(full) as Record<string, DocusaurusSidebarItem[]>);
+        ? (JSON.parse(readFileSync(full, 'utf-8')) as Record<string, SidebarSourceItem[]>)
+        : (require(full) as Record<string, SidebarSourceItem[]>);
     } catch (error) {
       // an unreadable sidebar would silently fall back to the directory tree,
       // which reorders the whole navigation without any other sign
@@ -73,4 +73,4 @@ const pages: SidebarPage[] = entries.flatMap((entry) => {
 });
 
 /** Sidebars of every (product, version, language), keyed by their route prefix. */
-export const sidebars: Map<string, SidebarEntry[]> = buildSidebars(pages, docusaurusSidebars());
+export const sidebars: Map<string, SidebarEntry[]> = buildSidebars(pages, sidebarSources());