Tl: dr: all is going well, continued with some light LST.
Nothing exciting at the time. I give it around 300-400ml of water as soon as the soil feels dry, most of the time that's once every 48 hours with one exception.
The humidity seems to stabelize around 60% this week, seeing branches developing well and quickly, it went from 'some leaves' to a plant over the last week. No extra nutrition added yet, since I want it to be a bit bigger. I'm still nervous about overdosing it and messing up it's development and I assume chances are smaller if the plant is a bit more dense.
With the plant a bit larger I started bending the top, hoping to get a plant that's a bit more bended/curled, so it's branches would go wider and more equal in heigth. Also pulled some side branches horizontal so that they would develop as wide as possible, again before we enter the flowering phase and need as much light as possible on the flowes.