Engineering blog

Field notes from building production software

Practical writing for senior developers, engineering managers and technical founders — performance, data, SaaS architecture, applied AI, payments and mobile.

All 66 Web Engineering 15 AI & ML 12 Data & Databases 11 Security 9 Payments 6 SaaS Architecture 5 SEO 4 UI/UX & Spatial Web 4

2 articles tagged dataClear filters

Data & Databases·25 Oct 2026

Frequently bought together from WooCommerce order history: confidence, lift and refunds

How DEV3 AI Recommendations & Upsells counts co-purchases from WooCommerce orders with HPOS-safe incremental counters, scores pairs by confidence weighted by lift, reverses refunds exactly once and keeps the storefront query-free.

woocommerce recommendations

12 min

Data & Databases·25 Oct 2026

Undoing a WooCommerce catalog import: a write ledger, first snapshots and rollback order

How DEV3 AI Catalog Importer makes an import reversible: a ledger of every product, variation, term, attribute and image it writes, before-snapshots taken once per session, and a rollback order that never orphans a child.

woocommerce import

12 min