Night in the market was a quilt of neon and rain. From the window, lanterns smeared puddles into bands of color. Inside, blue light from the screen painted Mei’s hands as she navigated the software’s interface: panels of registers, a scrolling log, a waveform preview. It looked utilitarian — blocky menus, terse tooltips — but under its surface it offered a vocabulary. Frequencies, memory banks, channel names, tone profiles. Someone had built it for technicians and hackers at once.