Ideas for computer challenges for a 7yo - Sopuli

I promised my kid they’d get a laptop when they learn to read well enough. This turned out to be a good motivator and they can now read full books. The kid likes competitions and challenges. I would like to come up with tasks they can learn to do with the laptop. The reason I want my children to have access to a computer specifically, is that while TVs and phones are used to consume, computers are used to create. I will be installing some Linux flavor on this machine, as it is a bit dated. I was thinking about things like: * Write a short story * Install a graphics editing program * Draw a picture of a cat To get them started. Probably I need some easier ones first.