An idea I riffed on during Handmade Network's Wheel Reinvention Jam: https://handmade.network/p/283/bifold-text. Makes debug by print more ergonomic by adding a little bit of structure to source code that tooling is aware of: markers for prints in source code that allow them to be hidden by default, an extensible framework for graphically rendering different kinds of log lines, and a way to collapse sections of logs.