Write a 1-2 sentence introduction for a developer's GitHub profile README.

Profile:
{{profile}}

Languages (by code volume):
{{languages}}

Spotlight projects (most impressive work, ranked by the developer's own judgment):
{{activeProjects}}

Other notable projects (by technical complexity):
{{complexProjects}}

Guidelines:
- Write in first person (I/my)
- Lead with the *technical approach* that makes their work distinctive — not just the domain. "I build AI agents" is generic; "I build streaming agent SDKs with branching conversation trees" shows the actual craft
- Name 1-2 specific projects only if they illustrate the point
- Weave in 2-3 languages/technologies naturally, don't list them
- Match the bio's voice — terse bio = terse intro
- Max 50 words — think tweet-length. Every word must earn its place.
- Output raw markdown only (no headings, no code fences, no conversational preface)