Yes! Like I mentioned in the other comment, multiple processes cannot access the same :memory: sqlite db, which makes it incompatible for our use cases.
I have to say I have enjoyed every minute of the video. Just watching what Michael Stapelberg has achieved leaves me awestruck. With his subtle humor I find it really a joy to watch.
My first Computer was a Commodore 116 which also had a 6502 derivative processor.
I stumbled accross Ben Eaters video series and nostalgia hit me hard.
I started the ZeroMips project (https://zeromips.org/) and now I have the old Amiga Bouncing Ball demo running on my Western Design Center W65C02S together with FPGA based video hardware. This escalated quickly ;)
EDIT: Digging a little more gave me the answer:
"The POWERn family of processors were developed in the late 1980s and are still in active development nearly 25 years later. In the beginning, they utilized the POWER instruction set architecture (ISA), but that evolved into PowerPC in later generations and then to Power Architecture. Today, only the naming scheme remains the same; modern POWER processors do not use the POWER ISA."