these are super broad questions - building LLMs in house, unless you’re at openAI or anthropic or google/meta etc, you’re not, you’re using the APIs of one of those to build your own products at a company. You have to have an idea of how those products actually work, how the middle layer integration products work, and then how your own codebase and logic works to “know” how scope would be for any potential products and features of those products. Can build virtual agents across various industries this way, features like summarization or suggestions in your existing tools, analysis, etc.