2 weeks of flowering (currently 12.5h light) are done and the plants are doing well! I have upgraded the grow box a bit, I now have a TAPO sensor for humidity and temperature that automatically turns off/on the ventilation system
Tomorrow the automatic watering system will be installed, more pictures will follow.
Update: Watering system added, took me quite some time to install but figured out how I can make each plant get the same amount of water. It is a cheap wifi system from Aliexpress, 25€.