The perfect first Python project: a command-line expense tracker with JSON persistence, clean module structure, type hints, and a pytest suite — small enough to finish, real enough to matter.

• Python
• pytest
• Typer

A complete ML lifecycle project: exploratory analysis, feature engineering, gradient-boosted models, experiment tracking, and a FastAPI service that serves predictions with input validation.

• Python
• scikit-learn
• pandas
• FastAPI

A production-grade REST API with authentication, PostgreSQL persistence, full-text search, rate limiting, and a test suite that covers the paths that actually break in production.

• FastAPI
• PostgreSQL
• SQLAlchemy
• Redis

A modern job board built with the Next.js App Router: server components, search and filters, accessible forms with validation, and metadata done right for SEO.

• Next.js
• TypeScript
• Tailwind CSS
• PostgreSQL

A retrieval-augmented documentation assistant: ingest any docs site, chunk and embed it, and answer questions with citations. Covers hybrid search, re-ranking, and hallucination guardrails.

• Python
• FastAPI
• PostgreSQL
• pgvector
• Next.js

An agent that reviews pull requests: it plans, reads diffs with tools, flags bugs with file-and-line references, and posts structured findings back to GitHub — with evaluation to keep it honest.

• Python
• LLM APIs
• GitHub API
• Docker