Sure, you can make flexible PCBs like the kapton-backed ... [Rehana] used a tool called svg-pcb to design the board. This is an open source toolkit that lets you design PCBs by describing them ...

The now-humble PCB was revolutionary when it came along, and the whole ecosystem that evolved around it has been a game changer in electronic design. But the PCB is just so… flat. Planar.

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