My first contribution was to choose a tech stack we could quickly use to deliver a working product fast. I did my research and chose react-native although it wasn't even 1 year old back then.
I did a pitch to the CEO about the plan and we started implementing it immediately after.
I worked closely with a very skilled designer: El Mamoune El Baraka
The project also included a scrapping part in order to get data from the client's original web page. For this, I used a popular python scrapping library.
The last part was publishing the apps to app & play stores and test the app with some beta testers prior to launch.