Seeking for counsel

Hello there!

Well I don’t really have any idea where to start, but I want to develop a public transport commute recommendation app. (If I want to go from point A to point B, what options do I have with a given public transport system?).

It’s not business related but just personal interest and bc I like to learn new things. Does anyone know how could I start and explain it to me?

I do not know coding (just some basics) but I’m a fast learner and I’m really exited about this. It will be much appreciated!