llms.txt
# Sonder (Sonder Sites Pty Ltd)
> Sonder Sites is a website and Shopify development business led by Tim Sullivan from Kyneton, Victoria, with a distributed delivery team. Web design for Macedon Ranges businesses, Shopify design and development across Australia, custom platforms and connected systems. Contact: tim@sondersites.com or +61 402 232 029.
## Snowball: continuous Shopify growth
Snowball is Sonder’s ongoing growth team for established Shopify stores. We monitor the store, prioritise improvements, build and review changes, research opportunities and learn from results. The loop is Watch, Think, Act, Find, Measure, Learn. Self-healing is one capability within the wider service. Service-business positioning is a future direction, separate from the current Shopify offer.
- [What is a living website](https://www.sondersites.com/living-website): The definition, dead vs living, why websites die, how one is kept alive, and what it costs.
- [Snowball](https://www.sondersites.com/snowball): Ongoing Shopify delivery from A$2,200/month + GST. Scope, monthly capacity, timing, monitoring and approval boundaries are agreed upfront. Larger work may span weeks. Start with a free conversation; paid discovery is scoped. Self-healing does not mean instant repairs, unlimited work or guaranteed leads.
- [Dead or alive? Free scan](https://www.sondersites.com/dead-or-alive): Free diagnostic that tells you if your website is alive, fading or dead.
## Services
- [Capabilities](https://www.sondersites.com/capabilities): The full agency stack in one place: Shopify Plus, custom apps, integrations, SaaS, university platforms, vibe-code rescue and migrations, plus how we work.
- [E-commerce AI](https://www.sondersites.com/services/ecommerce-ai): AI built into your Shopify store: agentic commerce readiness so AI shopping agents like ChatGPT and Perplexity pick you, on-site AI search and recommendations, AI support, personalisation and a self-healing store. AI for the watching, humans for the judgement.
- [Vibe code rescue](https://www.sondersites.com/services/vibe-code-rescue): We take apps built with Cursor, Lovable, Bolt or v0 from demo to production: security audit first, then auth, payments and real infrastructure
- [Custom app development](https://www.sondersites.com/services/custom-apps): Web apps, SaaS products and internal tools, designed and engineered end to end
- [Shopify Plus](https://www.sondersites.com/services/shopify-plus): Enterprise Shopify Plus builds, headless storefronts and replatforms
- [Shopify development](https://www.sondersites.com/services/shopify): Store builds, theme engineering and store rescues on core Shopify
- [Shopify superpowers](https://www.sondersites.com/superpowers): The set of things a living Shopify store can do, from self-healing to AI-assisted merchandising
- [Integrations](https://www.sondersites.com/services/integrations): ERP, POS, 3PL, NetSuite and Klaviyo integrations for commerce systems
- [SaaS engineering](https://www.sondersites.com/services/saas): Product engineering for SaaS founders
- [University platforms](https://www.sondersites.com/services/university-platforms): Membership, booking and payment platforms for universities
## Proof
- [Client work](https://www.sondersites.com/work): Case studies including RMIT University, Applied EV, Purvis Beer, Razorback 4x4, 12 Boards and CASA
- [RMIT University](https://www.sondersites.com/work/rmit): Unified membership and booking platform across campuses
- [Applied EV](https://www.sondersites.com/work/applied-ev): Engineering-grade web presence for an autonomous vehicle company
## Locations
- [Melbourne](https://www.sondersites.com/locations/melbourne): App development and Shopify Plus for Melbourne businesses
- [Kyneton and Macedon Ranges](https://www.sondersites.com/locations/kyneton): Piper Street office in Kyneton, local business experience and Shopify work across Australia
- [Sydney](https://www.sondersites.com/locations/sydney)
- [Brisbane](https://www.sondersites.com/locations/brisbane)
- [New York](https://www.sondersites.com/locations/new-york)
## Contact
- [Start a project](https://www.sondersites.com/contact): Scoped estimate in minutes, reply within one business day
- Email: tim@sondersites.com
## Optional
- [Insights](https://www.sondersites.com/insights): Technical guides on Shopify Plus, ERP integration and app development
- [Agentic commerce and Shopify Plus](https://www.sondersites.com/insights/agentic-commerce-shopify): AI agents now shop for your customers. What that means for Shopify Plus in 2026: GEO, MCP, and being the store an agent actually picks.
- [Shopify Plus ERP integration guide](https://www.sondersites.com/insights/shopify-plus-erp-integration-guide): Connecting Shopify Plus to NetSuite, Dynamics 365, SAP and Acumatica. Middleware vs point-to-point, rate limits, and where the source of truth lives.
- [Shopify Plus B2B: unify DTC and wholesale](https://www.sondersites.com/insights/shopify-plus-b2b-wholesale-unification): How to run DTC and wholesale on one Shopify Plus store with native B2B, instead of two separate platforms bleeding margin.
- [Shopify Checkout Extensibility migration playbook](https://www.sondersites.com/insights/shopify-checkout-extensibility-migration-guide): Shopify Scripts died June 2026. The enterprise playbook for migrating discounts, gift cards and custom logic to Checkout Extensibility.
- [Why enterprise brands are leaving Magento and SFCC](https://www.sondersites.com/insights/shopify-plus-migration-magento-sfcc): The real timeline, cost and architecture when enterprise brands move from Magento or Salesforce Commerce Cloud to Shopify Plus.
- [Security checklist: is my AI-built app secure?](https://www.sondersites.com/insights/vibe-code-security-checklist): 18 security checks for Bolt, Lovable, Cursor and v0 founders before they go live. The issues AI builders introduce by default, and the ones that cause data breaches.
- [Adobe Commerce End of Life 2026](https://www.sondersites.com/insights/adobe-commerce-eol-migration-cost): Adobe Commerce 2.4.4 and 2.4.5 hit end of life in 2026. The real TCO of staying on Magento vs. migrating to Shopify Plus, with version-specific EOL deadlines.
- [Shopify Managed Markets enterprise guide](https://www.sondersites.com/insights/shopify-managed-markets-merchant-of-record): Managed Markets turns Shopify into the merchant of record for international orders. Duties, taxes, compliance, and returns handled across 100+ countries without a compliance team.
- [Composable commerce: Hydrogen ROI model](https://www.sondersites.com/insights/composable-commerce-shopify-hydrogen-roi): The honest ROI model for headless Shopify with Hydrogen in 2026. When composable commerce pays for itself and when a themed store is the smarter investment.
- [SFCC to Shopify Plus migration playbook](https://www.sondersites.com/insights/sfcc-to-shopify-plus-migration): The dedicated enterprise playbook for migrating from Salesforce Commerce Cloud to Shopify Plus. SFRA architecture traps, price book mapping, and real cost comparisons.
- [Shopify Functions for enterprise pricing](https://www.sondersites.com/insights/shopify-functions-enterprise-pricing-guide): Shopify Scripts died June 2026. The enterprise guide to rebuilding tiered discounts, customer-group pricing, and payment restrictions in Shopify Functions.
- [Shopify Plus multi-brand portfolio](https://www.sondersites.com/insights/shopify-plus-multi-brand-multi-entity): Running multiple brands on separate platforms costs more than consolidation. The enterprise guide to Multi-Entity Selling, expansion stores, and portfolio architecture on Shopify Plus.
- [Custom platform to Shopify Plus migration](https://www.sondersites.com/insights/custom-platform-shopify-plus-migration): Moving off a bespoke, in-house commerce platform to Shopify Plus. Data extraction, rebuilding custom logic, and de-risking the cutover.
- [Headless Shopify with Hydrogen: when to go headless](https://www.sondersites.com/insights/headless-shopify-hydrogen-when-to-go-headless): An honest guide to when headless with Hydrogen is worth it, and when a well-built Liquid theme is the smarter call.
- [Klaviyo enterprise retention architecture](https://www.sondersites.com/insights/klaviyo-enterprise-retention-architecture): How enterprise brands architect retention in Klaviyo: data model, segmentation, and flows that scale past the basics.
- [Klaviyo SMS and predictive analytics for enterprise](https://www.sondersites.com/insights/klaviyo-sms-predictive-analytics-enterprise): Using Klaviyo predictive analytics and SMS at enterprise scale, from predicted CLV to next-order timing.
- [Shopify Plus hidden costs](https://www.sondersites.com/insights/shopify-plus-hidden-costs-enterprise-budget): The real enterprise budget beyond $2,300/month: platform fees, app stack, integrations, development, and ongoing optimisation costs broken down.
- [Shopify checkout UI extensions](https://www.sondersites.com/insights/shopify-checkout-ui-extensions-enterprise-conversion): Building enterprise checkouts that convert with Checkout UI Extensions, Shopify Functions, and post-purchase flows.
- [Shopify Plus performance engineering](https://www.sondersites.com/insights/shopify-plus-performance-engineering-site-speed): The performance engineering playbook for enterprise Shopify Plus: Core Web Vitals, image optimisation, app rationalisation, and continuous speed monitoring.
- [Shopify Plus subscription commerce](https://www.sondersites.com/insights/shopify-plus-subscription-commerce-enterprise): The enterprise guide to subscriptions on Shopify Plus: app choice, checkout, churn and the architecture decisions that matter.
- [Shopify Plus total cost of ownership](https://www.sondersites.com/insights/shopify-plus-total-cost-ownership-enterprise): The real total cost of ownership of Shopify Plus versus legacy enterprise platforms, beyond the sticker price.
- [Guide: vibe-code rescue cost guide](https://www.sondersites.com/blog/vibe-code-rescue-cost): Honest 2026 pricing for rescuing apps built with Lovable, Cursor, Bolt and v0. Three cost tiers, what drives the price up, audit-first scoping, and the questions to ask before hiring anyone.
- [Guide: my Lovable app is broken, the actual fix](https://www.sondersites.com/blog/fix-broken-lovable-app)
- [Guide: my Bolt app is broken, the actual fix](https://www.sondersites.com/blog/fix-broken-bolt-app)
- [Guide: my Cursor app is broken, the actual fix](https://www.sondersites.com/blog/fix-broken-cursor-app)
- [Guide: my v0 app is broken, the actual fix](https://www.sondersites.com/blog/fix-broken-v0-app)
- [Guide: my Replit app is broken, the actual fix](https://www.sondersites.com/blog/fix-broken-replit-app)
- [Guide: my Windsurf app is broken, the actual fix](https://www.sondersites.com/blog/fix-broken-windsurf-app)
- [Guide: custom app development](https://www.sondersites.com/blog/custom-app-development-guide)
- [Guide: Shopify Plus vs Advanced Shopify](https://www.sondersites.com/blog/shopify-plus-vs-advanced): Honest comparison of the two plans: real pricing, checkout extensibility, B2B, API limits, and the six signals it is time to upgrade. We build on both, so no upsell.
- [Guide: WooCommerce to Shopify migration](https://www.sondersites.com/migrations/woocommerce-to-shopify): What a WooCommerce to Shopify migration involves, when to move, data migration, plugin replacement, SEO redirects and a zero-downtime cutover.
- [Guide: Magento to Shopify Plus migration](https://www.sondersites.com/migrations/magento-to-shopify): Enterprise Magento 1 and 2 replatforming to Shopify Plus, licence renewal timing, complex data architecture and zero-downtime cutover.
- [Guide: BigCommerce to Shopify migration](https://www.sondersites.com/migrations/bigcommerce-to-shopify): SEO-first BigCommerce to Shopify migrations: complete one-to-one 301 mapping, full content and blog migration, Search Console monitoring through launch, from $15,000 AUD.
## Local web design and practical guides
- [Macedon Ranges web design](https://www.sondersites.com/locations/macedon-ranges): Website projects, Shopify and local proof.
- [Kyneton web designer](https://www.sondersites.com/locations/kyneton): Local projects and business context. Office: 26 Piper Street, Kyneton VIC 3444.
- [Shopify maintenance and support](https://www.sondersites.com/services/shopify-maintenance)
- [Shopify conversion optimisation](https://www.sondersites.com/services/shopify-cro-audit)
- [Shopify speed optimisation](https://www.sondersites.com/services/shopify-speed-optimization)
- [Macedon Ranges website checklist](https://www.sondersites.com/insights/macedon-ranges-website-checklist)
- [Shopify app-waste checklist](https://www.sondersites.com/insights/shopify-app-waste-checklist): Check billing, dependencies and outcomes before proposing any removal.
Project descriptions document delivered work. They are not proof of measured sales, ranking or lead gains unless the actual evidence is supplied.
- [Working with Sonder](https://www.sondersites.com/working-with-sonder): Business discovery, cost review, a goal-led delivery plan and ongoing Shopify improvements. Includes an illustrative planning calculator.
