Design principle of passive pretension
🧩 form closure interlocking such that the pegs get stretched a bit causing a bot of permanently remaining tension.
This makes the connections stiffer.
This may be a bit of a tradeof though as in simple passive parts high tension means
much more friction in assembly and disassembly making these processes less energy efficient.
A more advanced alternative is post tensioning after pre-assembly with only vdW forces:
ReChain frame systems (See: ReChain)