How to index local repositories and keep them up to date

In my organization we use gitea for hosting our code and track issues.

We have a new project which involved cloning nearly 5k repositories of code. We would like to view theses repositories into gitea web interface.
We have of tools which will clone all this repo into gitea tree.

Question : how can we view all theses repo into web interface and keep the view up to date as long as we will update them ?

Thanks for answer.