
Gastona
- Sector
- Bamboo toilet paper
- Services
- Migrations to Shopify
- Store design & build
- Integrations & architecture
Shopify Select Partner
Fast, mobile-first Shopify stores built to convert and optimized for SEO and AI search. We also make our own Shopify theme and app, so every client store gets product-grade code.






Seven services, one team. From the first store to the monthly retainer, with the code standards we hold our own products to.
Stores designed and built to measure: mobile first, fast on every page, optimized for SEO and AI search, and ready to sell on launch day.
See Store design & buildWe move stores to Shopify from any platform, with products, customers and orders, and we keep your rankings and your tracking on the way.
See Migrations to ShopifyShopify connected to your ERP, PIM, CRM, 3PL, point of sale and marketplaces, with custom apps where connectors fall short.
See Integrations & architectureShopify Plus development from a team that has run a few dozen Plus stores: checkout customization with extensions and Functions, Plus store builds and moves to Plus.
See Shopify Plus & checkoutB2B and wholesale on Shopify, on any plan: company accounts, price lists, catalogs and payment terms, with apps where the plan needs them.
See B2B & wholesaleA review of your store’s speed, conversion, technical SEO and AI search visibility, turned into a plan we can carry out.
See Audit & optimizationA monthly block of development hours for fixes and improvements, from a team that already knows your code.
See Support & retainersMatteo Gavin and Alessandro Martini founded Developpy after seven years each of building on Shopify, first as freelancers, then as a team. Both are certified Shopify Experts, and Developpy is a Shopify Select Partner. We make our own Shopify theme and app with the same team that builds client stores.
About us
Matteo Gavin
Co-founder, Shopify Expert

Alessandro Martini
Co-founder, Shopify Expert
Seven years of Shopify work, counted
5.0 on the Shopify Partner Directory, every review five stars (opens in a new tab)Shopify Select Partner, founded by two Shopify Experts.
Two today, more in the works. Everything we learn building for the Theme Store and the App Store goes into client work.
Coming to the Shopify Theme Store
Our Shopify theme, built for the Theme Store: cart drawer, product offer comparison, sticky add to cart and size guide built in, so a store needs fewer apps. Browse Woofy, the demo store, and join the waitlist.

Live on the Shopify App Store
Product offers inside the Shopify checkout, with campaigns, custom triggers and analytics, to raise average order value.

Developpy is a Shopify software house founded by two Shopify Experts. We design, build and migrate Shopify stores for brands, and we make our own Shopify products: the Universe theme and the Checkout Upsell Builder app.
Every project gets its own quote after a short call, once we know the scope. We don't publish prices or packages.
It depends on the catalog, the design and the integrations. You get a launch date in the written scope before work starts, after a 15-minute call.
Yes. We work with brands worldwide, in English, Spanish and Italian, from Barcelona and Padova.
Yes. We customize Universe for brands, as a project or on a retainer.
Book a 15-minute call, or write to us.