Gotcha. I like Saber for handwritten notes. It also supports photos and PDFs, so I will get some meeting notes, upload them into Saber and then handwrite notes on top of the PDFs.
It is cross-platform and has native NextCloud support, and they’ll even give you a server to use if you sponsor the project.
CWWK N100 - $152
1x16GB Teamgroup elite DDR5-5600 = $37
3x2TB Samsung 990 EVO - $255 1x128GB Patriot P300 -$14 (4TB storage + 2TB for redundancy and 128GB for OS)
$7 for some heatsinks for the SSDs.
Total = $465 USD
No idea what those prices look like in Europe.
You also have the option of expanding with 2 SATA ports.