How do I install and run this famous Immich app into Umbrel OS into my Raspberry Pi 4?

Please advise: How do I install and run this famous Immich photo gallery app into my “Umbrel OS” which installed on my Raspberry Pi 4 ?

Once you are set-up with Umbrel, you will just need to go to the app-store and download Immich!

umbrelOS*

Thank you