How can I develop a simple system using back-end and front-end using InterSystems IRIS

Hello programmers I would like to build a simple app where I could register data from a user like a name, age, and the phone just to practice, but for that, I would like to build the frontend and backend and also I need to be able to insert, update and delete information.
Does anyone have any recommendations for me on how I could do that using Intersystems IRIS?