Launched today: faxoffice1987.com — 8 film cameras simulated in Canvas 2D. The constraints I set myself: One HTML file No build step, no dependencies, no npm install Runs offline from a USB drive No backend, no account, no uploads The hard part: per-pixel color science. Each film stock (Tri-X, Stack: Vanilla JS, Canvas 2D Cloudflare Pages + Functions (share links, license validation) Polar.sh for checkout localStorage for state Pricing experiment: $29 one-time. No subscription. 1 camera free forever. Would love architecture feedback especially on the color science approach. Link: https://faxoffice1987.com