UI5 deployment in gateway

Hi,

We want to develop a customed UI5 application with SD data in our sap landscape.

Our gateway deployment scenario is central hub with connection to backend. The gateway has been deployed stand-alone, In the backend, only IW_BEP has been installed.

My questions -

1. where can we develop the gateway services ? in backend ?

2. where can we deploy our UI5 application ? in front-end server - the gateway ?

3. if we use the eclipse ide to connect to gateway service, which system do we need to connect ? front-end or backend ?

Thank you.

Kind regards

Benj.