ECM Store Importer

Saves the products of your own Shopify or Payhip store as a folder of
photos plus a table (CSV), in exactly the format Electronic Catalog
Maker's Grid Composer (https://tapalog.com/composer/) turns into a
printable, offline-capable tile catalog with a QR code per product.

Launch it and a page opens in your browser: enter your store's address,
pick where to save, and import. A report shows how many products came
in, grouped into which folders, and which ones had no photo, SKU or
price. Each product's Buy link points at its own page in your store.

Payhip doesn't let apps read its store pages, so for Payhip you save the
store's pages from your browser first and pick the saved files.

The importer only reads your store's public product pages, gently (one
request at a time), and saves everything on your own computer — no
account, no cloud. Settings live in ~/snap/ecm-store-importer/;
imports go to ~/Documents/ECM Store Importer by default.