

Practice real frameworks
Pick a framework in the explorer, then work through its challenges — the same skills real engineering teams hire for.
RAG
PythonHands-on RAG exercises that mirror real engineering work — from core fundamentals to the patterns interviewers actually probe. Every challenge is graded automatically and mapped to a skill below.
Retrieval-Augmented Generation puts a search step in front of the model: chunk the source material, embed it, retrieve what matches the question, and pass that to the model as context. Most of the difficulty is in retrieval quality rather than generation - chunk sizes, embedding choice, reranking, and knowing when the retrieved context does not actually answer the question.