This was a reverse engineering challenge where they provided a ROM for the GameBoy. 9 teams could solve it. It took me about two days to solve it. I usually don’t do reverse engineering challenges because they are time intensive, but this CTF lasted 5 days.

This is a sports training application that I published in 2021. Below, I will explain the development process and the main issues I encountered.

One day, my grandma came to me with a macbook pro retina from 2012 and said, “When I turn It on, the display remains completly black. But If I hold the power button until It shuts down, and then I turn it on again, It works. They said the GPU is broken and it will cost 800 bucks to fix. It’s not worth It. I’ll buy a new MB instead. I’ll give you the old MBP and If you can fix it, It’s yours.” Challenge accepted…