The short answer is; yes, you can use laptops, keyboards and any other electronic equipment that you bring.
However, please be aware that our slot times also include setting-up time.
As the first 15 slots are 10 mins (or two songs, under 10 mins total), and then after that down to 5 mins, if your gear set-up takes a long time you may well have a significantly shorter time to play.
So if your gear takes you 5 mins to set up, you may only have time to perform 5 mins of material.
The best thing is to set your gear up first (before you're called up to perform) so you know everything is working and ready to go, then when it's your turn take it all to the performance area, plug it back in and you're ready to go with the least delay possible.