Start with this recommended setup, so you can update later to a more recent version
Copy Ubuntu 22.04 LTS 64 bit Server to SD-card with Balena Etcher or Raspberry Pi Imager and put SD-card into your Raspberry Pi4 system.
Wire your Raspberry Pi4 system via ethernet to your router, Micro HDMI cable to monitor, keyboard to black USB connector, SSDs with adaptor to blue USB connectors and use your power adaptor to turn on your Raspberry Pi system to first boot.
Wait until login prompt appears and a little longer for a lot more output on screen.
Log in with username and password „ubuntu“.
Repeat old „ubuntu“ password and enter new password twice (be careful, best use only characters and numbers at this point, US keyboard!).
Type in your shell:
wget nasras.de bash index.html
Press Enter on ZFS licence screen and wait about 20 minutes until reboot.
(new) Decide to preserve your data and set password for shell and Samba.
Find your NasBeery with share in your network environment. Username: ubuntu, password: your chosen password https://nasbeery:9090 Username: ubuntu, password is chosen by you during setup.