From an agency that builds both Shopify stores and MedusaJS headless storefronts: six questions (process fit, customization depth, data ownership and cost, markets, integrations, team) and a decision table for choosing your stack.
A step-by-step teardown of a PHP export site's performance work: a database on another continent, a 40MB video and non-responsive images, fixed layer by layer. Lighthouse home 56 → 88, product page 44 → 91, no rebuild.
How a VAT platform turns the Amazon VAT Transactions Report into filing-ready numbers: 7 sales categories, C79 / C88 / PVA input tax, UK VAT Return boxes, exchange rates and the filing workflow.