Automated Printify POD Shopify Build

I’m putting together a laser-focused Shopify storefront that will sell just two Printify products, yet I want the foundation to be strong enough for bulk design uploads later on. Every graphic has to live inside Shopify Metaobjects so I can push hundreds of variants with a CSV or API call down the road—please structure the collections, product templates, and metafields accordingly.

On the front end the user experience should feel like Teeinblue: a dynamic customizer that reads each artwork asset and its Design ID directly from those Metaobjects, then shows an instant side-by-side live preview (front and back) as the shopper tweaks options. If Teeinblue cannot achieve this out of the box, I’m open to an equivalent third-party app or a clean custom app block, as long as the preview is real-time and mobile-friendly.

Internationalisation is the final piece. I need language-based subfolders (/de, /uk) with proper hreflang tags and an automatic Geo-IP redirect that respects browser language while letting visitors switch locales manually. Please set up Shopify Markets, translate the theme strings, and make sure SEO signals are intact.

Deliverables
• Metaobjects schema and sample entries for both Printify products
• Theme sections/blocks (Dawn or similar) wired to the dynamic customizer and live duo-preview
• Markets configuration with working /de and /uk subfolders, hreflang, and Geo-IP logic
• Brief Loom walkthrough and export files so I can replicate the workflow for future products

Acceptance criteria: all previews must update under 500 ms, the Metaobjects must allow bulk CSV import, and the locale folders must pass Google’s hreflang validation.