This is the demo catalog. The 58 products, catalog numbers, prices and drawings are generated samples so you can see the layout filled in. To load your own products, edit src/data/catalog.json — scripts/add-inventory.mjs shows the merge pattern (note: npm run convert-catalog rebuilds from the legacy generator and will overwrite manual additions). Drop product photos into public/products/ named after the part number — see public/products/README.md. If you sell peptides, make sure your listings meet the labeling and licensing rules that apply in your market.