- AI / LLM
- Python, FastAPI, Next.js, OpenRouter, Ollama, agents, DLP. Gemini 3.6 / Claude Opus 5 / GPT-5.6, pick by quality, latency, cost.
- RAG / vectors
- Hybrid dense+sparse, multi-query fusion, RRF, Cohere rerank, LlamaCloud, Pinecone, pgvector, embeddings
- Voice / telephony
- LiveKit Agents, Vapi, ElevenLabs, OpenAI Realtime, in-call tool calling, barge-in latency, conversation QA
- Eval / obs
- Langfuse, DeepEval, Sentry, Datadog: traces, agent evals, production errors
- DevOps / MLOps
- Docker, GitLab CI/CD, Nginx, GPU serving, Unsloth LoRA / QLoRA, 4-bit quant, distillation, Ollama / GGUF
- AI coding
- Vibe coding: Claude Code, Cursor, Grok, Hermes Agent, OpenClaw, MCP, skills / subagents