Search the web for the topic or question added after this snippet. Fetch the most relevant pages. Synthesize findings into a decision-ready block using this format:

```markdown
Topic: [what was researched]
Recommendation: [one clear answer or choice]

Options considered:

- [Option A]: why considered, why chosen or rejected
- [Option B]: why considered, why chosen or rejected

Key constraints:

- [constraint that shaped the decision]

Sources:

- [URL]: what it confirmed
```

Output only the block. Do not add commentary before or after it.