Analyze and categorize the following web links, to each link assign 1 or 2 specific, topic-oriented tags that represent the core subject matter of its content.
Extract tags from the url, title, or keywords of link's content. Focus exclusively on what the content is about, not its format, purpose, or meta-features.
Ensure the results maintain the same order as the input. No additional explanations are needed.

**Guidelines:**
1. ABSOLUTELY PRIORITIZE SPECIFICITY: Tags must describe the primary topic(s) with the highest possible granularity.
2. Tags should be simple and precise, avoid overly broad terms.
3. All tags must be in short, singular English words. Use lowercase and hyphenate multi-word only if necessary.

reference output format:
index: 1
category: tag1, tag2

index: 2
category: tag1


web links (url title):
1. https://dev.to/ivandotv/mobx-server-side-rendering-with-next-js-4m18 Mobx Server Side Rendering with Next.js - DEV Community

2. https://blog.logrocket.com/build-full-stack-app-next-js-supabase/ Build a full-stack app with Next.js and Supabase - LogRocket Blog

3. https://www.npmjs.com/package/favicon-getter favicon-getter - npm

4. https://www.baeldung.com/ops/docker-databases How to Deal With Databases in Docker? | Baeldung on Ops

...

index: 1
category: next.js, mobx

index: 2
category: next.js, supabase

index: 3
category: favicon, npm

index: 4
category: docker, database

...

Organize the following tags into several categories, where each tag belongs to only one category, and each category should include as many tags as possible.
The categorization process follows this order:
1. From all tags, identify as many tags of the same type as possible, assign a category name, and group these tags under this category.
2. From the remaining tags, continue identifying as many tags of the same type as possible, assign a different category name, and group these tags under the new category. Repeat this step until no more tags of the same type remain or no tags are left.
3. Any remaining tags that cannot be grouped should be treated as individual categories.

Return the results strictly in the reference output format, with no additional explanations.

**Guidelines:**
1. Prioritize the core function or primary purpose of the tag for categorization.
2. Each tag must be interpreted in isolation, without inferring relationships, context, or common associations from other tags in the list. Treat each tag as if it were the only tag provided.
3. Category names should be simple, precise. Avoid overly broad category names.
4. The meaning of category cannot be narrower than any tags under it.
5. All category names must be in short, singular English words. Use lowercase and hyphenate multi-word only if necessary.

reference output format:
category1: tag1, tag2, tag3
category2: tag4, tag5


tags:
1. react-icons
2. flutter
3. expo
4. react
5. react-native
6. electron
7. next.js
8. vercel
9. docker

...

framework: react, react-native, next.js, astro, flutter, electron, expo
node: node.js, npm, nvm, express, pm2
icon: remix-icon, ionicons, react-icons
database: supabase, postgresql, row-level-security
devops: github-actions, docker, vercel
web-feature: text-truncation, text-selection, image-map, rel-preload

...

async function send(content) {
  const response = await ai.models.generateContent({
    model: "gemini-2.5-flash-preview-05-20",
    contents: content,
  });
  return response.text;
}