Migrations
Migrating from Magento 2 to Shopify Plus: the playbook
The 2026 field guide to migrating from Magento 2 to Shopify Plus — the audit, the data map, the redirect strategy, the cutover, and the 30-day SEO recovery curve.
Blog
Insights from the Sev team.
Practical Shopify development, performance, and CRO notes from our engineering team — no filler, no thought-leadership. Just what we’ve learned shipping real stores.
Technical
Shopify theme performance: the 2026 playbook
Lighthouse 98, INP under 150ms, LCP under two seconds — on a real Plus store with twelve apps installed and a merch team that won't stop adding Hero sections. The wins, the losses, and the audit method that finds the next bottleneck before the merchant complains.
Migrations
BigCommerce to Shopify Plus: a 2026 migration playbook
Channel fees, theme constraints, the option-set tax. Why merchants are leaving BigCommerce in 2026 and what an honest Shopify Plus migration actually costs — catalog model, URL map, channel consolidation, timeline.
Technical
Checkout CRO on Shopify Plus: what actually moves the needle (8-store study)
Six months. Eight Plus stores. Fourteen A/B tests. The four interventions that won every time, the three that lost, and the four that depend — with sample sizes, lift, and what you should actually run on your store.
Technical
Hydrogen vs. Liquid: when headless is the right call (and when it isn't)
Forty-plus Liquid themes, twelve Hydrogen builds. The seven questions we ask in kickoffs to decide which platform layer fits — and the cost reality most agencies don't put in the proposal.
Development
Building B2B checkout extensions on Shopify Plus: a 2026 field guide
Net-30 terms, PO numbers, per-account pricing, custom shipping logic — and the eight-week build it takes to ship them on top of Shopify's checkout extensibility stack. From an agency that has shipped twelve.
Development
Shipping Shopify Functions in Rust: a complete 2026 tutorial
Six Rust Functions in production. The cargo manifest, the wasm-size optimisation that drops binaries 60%, the JSON schema mismatch trap nobody documents, and the cold-start latency data that justifies the extra build complexity.
Development
Shopify Functions discount API: BOGO, tiered pricing, and bundle logic done right
Twenty Functions in production, and the bugs we hit on every one. The Discount Function input/output contract, the BOGO traps, the tiered-pricing decision points, and the test harness that catches the schema drift the Shopify CLI doesn't.
Migrations
WooCommerce to Shopify Plus: preserving SEO through the migration
Five years of plugin churn, custom permalinks, and translated slugs do not port cleanly to Shopify. Here is the redirect map, the schema audit, and the 30-day GSC monitoring plan that keep your rankings alive through cutover.
Work with us
Reading about it? Let's build it.
We've shipped theme, app, and performance work for brands at every scale. Tell us what you're up against and we'll come back with a plan.