wi5eif6E

I get that this gives you less liquidity personally, but (a) you're only required to pay in half, i.e., 6,250 EUR each, and (b) this money isn't gone, and you don't lose the ability to recover it should you decide to liquidate the company later. As others have pointed out, you can use that money to pay costs associated with the founding (e.g., the notary) and also expenses required to maintain the company (IHK dues, bookkeeping, etc.).

German also works great.

This looks and works great! A settings option to keep no recording history at all would be terrific.

It's rather unlikely the RuntimeDirectory= contains state as it's wiped on service stop unless RuntimeDirectoryPreserve= is set. NB: these days, /var/run/ is a symlink to /run/

Unfortunately, that's not possible. However, as NixOS modules usually are Systemd services, the StateDirectory= of the service is a good starting point (systemctl cat <service>).