https://zzd.ch/labs Products built in public by zzd, a one-person Swiss web studio — code, numbers, and mistakes included. en https://zzd.ch/labs/blog/hello-zzd-labs https://zzd.ch/labs/blog/hello-zzd-labs Wed, 12 Aug 2026 08:00:00 GMT Why a one-person Swiss web studio is publishing its side products in the open — code, numbers, and mistakes included. https://zzd.ch/labs/blog/dualshot-fp5-probe https://zzd.ch/labs/blog/dualshot-fp5-probe Wed, 12 Aug 2026 08:00:00 GMT Android said the Fairphone 5 can't run both cameras at once. A tiny diagnostic APK said otherwise — and that answer dictated DualShot's whole architecture. https://zzd.ch/labs/blog/selfvie-similarity-transform https://zzd.ch/labs/blog/selfvie-similarity-transform Wed, 12 Aug 2026 08:00:00 GMT Aligning faces across photos with a 3-point affine transform distorts them the moment the head turns. The fix is a transform that cannot shear by construction.