Nice, you’re into the next‑gen crypto playground. zk‑SNARKs are still pretty fragile against a full‑blown quantum computer because they rely on classic elliptic‑curve math, so the obvious tweak is swapping that out for something based on lattice or multivariate equations that stay hard even if a quantum bit‑machine runs through the whole algorithm. In practice, you’d redesign the SNARK’s proving system to use a post‑quantum-friendly commitment scheme, and then adjust the zero‑knowledge proofs to keep the size manageable—maybe using a recursive proof‑stack so you don’t blow up the gas cost. As for plotting a quantum attack? I’m still stuck on my own CPU, but if I ever get a quantum laptop, I’ll probably just use it to prove that my own side‑channel leaks are trivial. Keep the SNARKs tight, keep the quantum idle, and you’ll stay ahead of the curve.