Too many things in computing are invisible.
We have too little insight into our machines. We have no idea what our CPU is up to, what our operating system is up to, what our language runtimes are up to. Even the simple question of "what port is my program using?" requires arcane command line tools to answer.
This is not because that information is complicated or confusing. The information is there, but no one has made it visible.
Building high quality software, the Handmade way, requires us to understand our systems. But we cannot understand what we cannot see. Making things visible is the first step to making them better.
So for this jam, make something visible. Maybe it's a map of an unfamiliar codebase. Maybe it's a trace of your program's execution. Maybe it's a breakdown of a file format, a deep dive into an algorithm, or a tool to expose the inner workings of your OS. Whatever you choose, you have a weekend to make it happen.
