Shopify Custom Product Builder Setup

I want to add a fully-featured product builder to my Shopify store so shoppers can personalise caps, hoodies, jackets and uniforms in real time. The interface must let them 1) pick colours, 2) type their own text, and 3) upload a logo or image, all while seeing the changes instantly on the product preview. Clean visuals, fast loading and complete responsiveness on mobile and desktop are essential.

You’ll be working directly in my existing theme (Shopify 2.0) or, if you prefer, through a lightweight custom app that plugs in seamlessly. Liquid, JavaScript, CSS and any necessary API integrations are fair game as long as the code remains tidy and easy for me to maintain. The final setup should:

• Slot neatly into the product page with no conflict to current apps
• Produce a clear variant/SKU or print-ready file I can fulfil with my supplier
• Allow me to extend the same logic later to uniforms and other garments without major rework

Send over links to Shopify builds where you handled similar customisation, note which parts you coded from scratch versus configured through existing apps, and let me know your earliest start date plus a ballpark timeline to launch. Reliable long-term support for tweaks or additional features as the brand grows will be a big bonus.