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BrainFeed Solutions

Senior-led digital strategy and AI-augmented delivery for service businesses across AU, US and UK.

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Plain-language playbooks for growing your business.

What we've learned building digital growth programmes for healthcare, recruitment, and professional service businesses — written for the people who actually run them.

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Shopify Engineering

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Implementation depth — checkout extensibility, headless, custom apps, theme work, Shopify Flow, inventory by location.

Shopify checkout's three surfaces — UI Extensions (what buyers see), Functions (what Shopify decides), and Branding (how it looks) — with Shopify Scripts shown archived, 2015–2026.

SHOPIFY ENGINEERING

Shopify checkout extensions vs Functions vs Scripts (RIP): picking the right surface in 2026

Scripts is gone. Every checkout change now routes to one of three layers — UI Extensions, Functions, or Branding. Here's the decision framework we actually use.

Pratik · 13 min read · June 3, 2026

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