Slowly the grow began.
This is a first grow and a new box, so the plant faced several challenges.
Swinging humidity levels (down to the 30 RH, brought in a small humidifier it helped a bit. With hindsight, I should have brought a bigger one with the temp read), swinging temps (it's an outbuilding, with temps dropping to 0 outside).
But looks like it's a strong one, and a fighter.
Due to temps I've been keeping it on 100% ts1000, 24h, but on day 7 my leaves began to curl upwards, I might need to make some changes.