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.

Latest Migrations

Squarespace to Shopify: keep the look, keep the rankings

Squarespace's exports leave out your store pages, your featured product images and your design. Here's what moves, what you rebuild, and the redirect map and SEO checks that carry your rankings over to Shopify.

13 min read

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.

11 min read

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.

13 min read

Development

Shipping Shopify Functions in Rust: a complete 2026 tutorial

Six Rust Functions in production. The cargo manifest, the wasm-size optimization that drops binaries 60%, the JSON schema mismatch trap nobody documents, and the cold-start latency data that justifies the extra build complexity.

11 min read

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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.

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