Yes I build today a Raspberry Pi 4 4GB server with Jellyfin and OpenMediaVault on.
Here we have my project – fileserver and mediaserver – all in one.

With a SSD disk with 5TB, Raspberry PI 4B 4GB ram and Armor Case with a do it your self fan attached.
Raspbian OS 64 lite is the operation system – on an sd card with 64GB.
Install OpenMediaVault.
wget -O - https://raw.githubusercontent.com/OpenMediaVault-Plugin-Developers/installScript/master/install | sudo bash
Install Jellyfin.
curl https://repo.jellyfin.org/debian/jellyfin_team.gpg.key | gpg --dearmor | sudo tee /usr/share/keyrings/jellyfin-archive-keyring.gpg >/dev/null
echo "deb [signed-by=/usr/share/keyrings/jellyfin-archive-keyring.gpg arch=$( dpkg --print-architecture )] https://repo.jellyfin.org/debian $( lsb_release -c -s ) main" | sudo tee /etc/apt/sources.list.d/jellyfin.list
sudo apt update
sudo apt install jellyfin
Here a look on OpenMediaVault.


So we can see OpenMediaVault and Jellyfin is use about 50% of the Raspberry Pi ram and 37% of the CPU. And I am about to copy 500GB over right now.
Remember to look on the temperature on your Raspberry Pi and add a fan is also important. Here is who to see the temperature.
/usr/bin/vcgencmd measure_temp
So now I have a small NAS for my network and can also use this as our media server for our family.
There are Jellyfin app’s for Iphone, Android and Android TV’s.
Have fun ;O)