To make vinegar from wine you need a jar/bottle with a wide opening for the required ventilation. However, you can also use a 15 liter, or larger, demijohn which has a narrow bottleneck. For ventilation you could use an aquarium air pump or a wort aeration pump or this 3D printed cap with built-in fan. The fan has the dimensions of 40x40 mm and requires =12 Volts power supply. The 40x40 mm fan provides ennough air flow. You could use larger 50x50 or smaller 30x30 fans. The fans height can be any (10-20 mm).
Power Adapters starting from =7 up to =12 volts are also sufficient. Fans are available from 2.50 Euro and lower.
The opening of the cap, with the fan, must be covered with a cloth to prevent fruit flies and other pests of entering the demijohn. The cloth can be cheesecloth, some other air-permeable cloth or some very fine netting.

To customize it to your needs better install Openscad on your computer and load the script BottleCapWithFan.scad. Somehow the Customizer displayed in the browser does not allow to customize all items. Beware that the rendering rings of side outlets may take time on an older computer.

Picture generated with openart.ai .

THIS is not tested (printed and used) yet. That will happen in July 2024.