Background: I am a Software Engineer and over the years got opportunity to work on different areas (Frontend, Backend, etc). For past 1 year I had started developing Co-pilots using Langchain, OpenAI, RAG. Now my query is if I want to build expertise in this areas what courses/books I should read so as to build knowledge around this area? I am looking for suggestions.
My current job involve working in decade old product, how can I get a practical experience in developing a highly scalable and distributed applications.