To enable recording of conferences made with on-premise Jitsi meet installations, Jibri(JItsi BRoadcasting Infrastructure) is required. Jibri launches a chrome instance in a virtual framebuffer.
Nextcloud is an on premise Dropbox alternative. It's a very capable software with great features. When you look at the documentation, there is a great deal of information about installation. But if you are after a highly available cluster, documentation vanishes, and you get redirected to the paid support site.
So, you installed Jitsi, and it works pretty fine. But you want to rebrand the system for your own company. Here is a quick and dirty guide for customization on docker-compose.