Your first app interface should be a CLI! Carl and Richard talk to Kathleen Dollard about her experiences creating the .NET CLI - and how CLIs are only getting more important in the era of AI. Kathleen talks about working within the POSIX CLI standard for consistency's sake and to recognize that there will be many more CLIs in your life, so they should be as similar as possible. While CLIs may have started as configuration-as-code and DevOps practices, LLMs work well with them as long as consistency is maintained. There are several projects out there today to help you build a great CLI - check the links!