Skip to main content

Need custom software built?

There is no software we can’t write.

Fast quote · Invoiced service · Full support

Get a quote
Technology Showroom · Yellow Cart Family Store LLC · Sheridan, WY

GEO-Optimized, SEO-Maximized Systems. All on Cloud Servers.

Yellow Cart Family Store LLC builds custom software on Laravel, .NET, Node.js and pure PHP, AI-powered Shopify apps, and sector platforms with thousands of indexed pages. Every system is built to be found in search engines and AI assistants, and every one runs on cloud hosting or dedicated cloud servers, with the same load times for a customer in Texas, New York or anywhere else. Everything on this page is live and measurable.

10k+
Indexed pages shipped
6
Certified partnerships
up to 65%
Avg ad spend cut
US + TR
Wyoming LLC · İzmir engineering
10+
Projects in development
Our Portfolio

What We’ve Built

Apps, platforms and client sites we have shipped — on Laravel, .NET, Node.js, Next.js, pure PHP and WordPress, every one of them on cloud infrastructure. Each product leads with a clear outcome for the customer; the plumbing stays behind the scenes.

Live

Full Content SEO

Now live on the Shopify App Store — your store, ranked and written by AI

Our flagship Shopify app is live in the official App Store. Install it from your Shopify admin and turn your product catalog into search-ready content within minutes: meta titles, descriptions, on-brand blog posts, structured data, sitemap and hreflang signals — all generated and kept fresh in the background while you run the store.

  • Officially listed on the Shopify App Store — install with a single click
  • Entire catalog search-optimized in a single afternoon
  • Blog posts that link back to the right products — on brand, in your voice
  • Structured data and SERP preview checks before you publish
  • Multi-language ready, so reaching new markets becomes a toggle
  • App StoreLive on Shopify
  • 4Pricing plans
  • 65+Store categories

Built with

  • Shopify App Store
  • Next.js 14
  • React
  • Shopify Polaris
  • Shopify Admin API
  • Gemini 2.5 Flash
  • PostgreSQL
  • Schema.org
Visit site
Live

TeknikServisTürkiye

Thousands of fully-indexed pages, designed to out-rank the directory incumbents

A nationwide technical-service directory engineered as an SEO platform, not a brochure site. Thousands of pages — one for every province × district × category × brand combination — are fully indexed and optimized for fast crawl. The organic traffic carries Google Ads Quality Scores up, which pushes CPC down and frees up to 65% of the ad budget for growth, not clicks.

  • Thousands of fully-indexed long-tail landing pages — one per city, district, category, brand
  • Fast-index architecture: new pages reach Google in hours, not weeks
  • Higher Quality Score → lower CPC → up to 65% saving on the Google Ads budget
  • Custom-built for the client’s business — brand voice, funnel and back-office flow
  • 10k+Indexed pages
  • 81Provinces covered
  • up to 65%Ad spend saved

Built with

  • Next.js 14
  • TypeScript
  • MySQL
  • SEO data pipelines
  • Schema.org (JSON-LD)
  • Analytics
Visit site
Live

Last Summer Florist

A boutique İstanbul florist, rebuilt as a measurable foundation

A real atelier on Nisbetiye Caddesi in Etiler — the offline side was healthy, the online side wasn’t. We rebuilt it as an engineering project: a single Postgres-backed data layer, a virtual POS that actually accepts foreign cards, live product feeds for Google Shopping and Meta, structured data across 13 Schema.org types, KVKK-compliant conversion tracking, and an order automation that doesn’t wait on a person.

  • Five-language storefront live (TR, EN, DE, RU, AR) with hreflang and canonical signals
  • Foreign cards (EU customers) actually clear payment — the previous build was silently rejecting them
  • Every new product appears in Google Shopping & Meta Catalog on the next feed pull
  • 13 Schema.org structured-data types, 371 sitemap URLs — modern Google reads the structure, not just the text
  • Order chain runs itself: stock decrement, customer + admin notifications, PDF invoice retained for evidence
  • 5Languages live
  • 371Sitemap URLs
  • 13Schema types

Built with

  • Supabase (PostgreSQL · Storage · Auth · Realtime)
  • Garanti BBVA Sanal POS (3D Pay, SHA512)
  • Google Merchant Center
  • Meta Catalog
  • Schema.org (LocalBusiness · Product · Article · VideoObject)
  • Google Tag Manager · Consent Mode V2
  • Claude Sonnet 4.5 (AI translation)
  • Hostinger
Visit site
Live

Nuvelle

Custom commerce with a Claude-powered sales consultant, loyalty and influencer marketing built in

A homewear & intimates brand running on a platform we built from scratch on Node.js — fully owned and controlled by the brand, not rented from a template. At its center is “Nue”, an advanced AI sales consultant powered by Claude that guides each visitor to the right piece the way a boutique assistant would. Around it: a points-and-referral loyalty program, a built-in influencer marketing layer, and privacy-first touches like discreet, unmarked shipping.

  • “Nue” — an AI sales consultant powered by Claude that guides shoppers to the right piece, 24/7
  • Points & referral loyalty program that turns first-time buyers into repeat customers
  • Influencer marketing built into the platform — not a bolted-on third-party tool
  • Fully owned by the brand: custom Node.js software, no template lock-in, full control
  • Privacy-first by design — discreet, unmarked shipping baked into the flow
  • NueClaude AI consultant
  • LoyaltyPoints & referral
  • 100%Brand-owned

Built with

  • Node.js
  • Claude AI (Anthropic)
  • AI sales assistant
  • Loyalty & referral engine
  • Influencer marketing
  • Custom e-commerce
  • Schema.org
Visit site
Live

Bek Kepenk Sistemleri

WordPress done right — premium theme, VPS hosting, 95+ Lighthouse, GEO-optimized, built to convert

Proof that WordPress isn’t the problem — cheap hosting and bloated themes are. We built this İzmir rolling-shutter company’s site on a premium theme over cloud/VPS infrastructure, then tuned it until the scores went green: 95 performance, 100 SEO, 100 best practices. Every screen carries a conversion-focused sticky footer — Call, Directions and WhatsApp always one tap away — so a visitor with a jammed shutter at 2 a.m. reaches the team instantly.

  • Premium theme on cloud/VPS hosting — no shared-host lag, no plugin-bloat slowdown
  • Green Lighthouse across the board: 95 performance · 100 SEO · 100 best practices
  • Max-conversion sticky footer — Call, Directions and WhatsApp one tap away on every screen
  • LocalBusiness schema + Google Business Profile wired for İzmir map traffic
  • GEO-optimized (Generative Engine Optimization) — structured so AI search and answer engines can cite it
  • Core Web Vitals tuned so the site stays fast as the catalog and blog grow
  • 95Lighthouse perf
  • 100SEO score
  • 100Best practices

Built with

  • WordPress
  • Premium theme
  • Cloud / VPS hosting
  • CDN + edge cache
  • Core Web Vitals
  • GEO (AI search)
  • Schema.org (LocalBusiness)
  • WhatsApp Business
Visit site
Live

ESTKON Pressiomètre

Pure PHP, built for Google Ads — a French-language B2B site that turns engineers into quotes

A manufacturer of Ménard pressuremeter test equipment (EN ISO 22476-4 / ASTM D4719) selling into France, the Maghreb and West Africa. We built the site in pure PHP — no framework overhead, no plugin chain — for one reason: Google Ads Quality Score. Lean markup, sub-second loads and a single, unmistakable path to “request a quote” push QS up and CPC down. It is the pattern we run for dozens of sector businesses who buy traffic and need every click to count.

  • Pure PHP, zero framework bloat — the lightest possible page for Google Ads Quality Score
  • Conversion-first: one clear “request a quote” path, WhatsApp handoff, 48-hour quote promise
  • French-language B2B targeting France, the Maghreb and West Africa — written for buying engineers
  • Standards-led trust signals (EN ISO 22476-4, ASTM D4719) placed where a procurement lead looks
  • The same pattern powers dozens of sector business sites that live on paid traffic
  • Pure PHPNo framework overhead
  • High QSGoogle Ads ready
  • 3Regions targeted

Built with

  • Pure PHP
  • Google Ads Quality Score
  • Conversion-first UX
  • WhatsApp handoff
  • Schema.org
  • Cloud hosting
Visit site
Live

KABALA

Inventory, warehouses and stock alerts — all on one live dashboard

A full-stack inventory and warehouse management platform that keeps every SKU, every location and every alert in sync. Teams see real-time movement across branches, scan barcodes on web and mobile, and receive smart alerts before a stock-out ever reaches the customer — replacing the Excel chain that most operations still depend on.

  • Real-time stock movement across every warehouse — no spreadsheet lag
  • Barcode scanning on web and mobile for receiving, counting and transfers
  • Smart alerts fire before a stock-out reaches the customer
  • Multi-warehouse views with transfer and reservation flows built in
  • Turnover, dead-stock and reorder-point reports ready for the finance review
  • Real-timeStock sync
  • Multi-warehouseLocations
  • Barcode-readyWeb + mobile

Built with

  • Next.js
  • PostgreSQL
  • Real-time sync
  • Barcode scanning
  • Multi-tenant dashboard
  • REST API
Live

Tahsilat

Collect faster, chase less — payments, reminders and cash flow in one place

A finance dashboard that brings every payment channel, every overdue invoice and every customer reminder onto one screen. Send a pay-by-link over SMS or email, track open balances and aging per customer, and let automated reminders chase the slow payers for you. Reconciliation stops being a month-end exercise — cash flow is visible in real time.

  • Pay-by-link over SMS or email — no physical POS required
  • Automated reminders take over the dunning work that used to be manual
  • Live customer balances, due dates and aging on one screen — not a monthly export
  • Multi-channel collection (card, transfer, EFT) unified in a single reconciliation view
  • Dealer and sub-user management with per-user limits for franchise networks
  • Link-basedSMS + email pay
  • Multi-channelCard · Transfer · EFT
  • Auto-remindersDunning automation

Built with

  • Next.js
  • Payment gateway
  • Webhooks
  • Automated SMS + email
  • PostgreSQL
  • Financial reporting
Live

Lytra

Multi-institution loyalty & benefits platform — points, tiers, campaigns, one engine

A loyalty engine built to run many programs at once. Members affiliated with an institution — ministries, unions, associations, corporates — earn points shopping across a partner merchant network and unlock offers reserved for their institution. Tiered membership, point expiry, campaign rules, a rewards catalogue and a refund-safe ledger are handled by the engine; each institution gets its own branded program on top. The public demo runs a program for public-sector employees across dozens of institutions.

  • One engine, many programs — each institution runs its own branded loyalty scheme
  • Points, tiers and expiry rules that reward loyalty without leaking margin
  • Campaign builder and rewards catalogue managed by the program owner, not by us
  • Refund-safe ledger: every earn, redeem and reversal is traceable
  • Analytics dashboards for partner merchants and program admins
  • MultiInstitutions per engine
  • TiersLevels & expiry
  • DemoLive public demo

Built with

  • Loyalty engine
  • Points & tiers
  • Campaign rules
  • Multi-institution
  • Merchant network
  • Analytics dashboard
  • Custom software
Open app
Live

Turquoise Stays

AI-priced hotel & tour agency platform — multi-tenant, voucher-ready, seeking its investor

A TÜRSAB-licensed travel agency running on a platform we built for hotels and agencies. The core is an AI pricing protocol: hotel and room rates are set with AI agents and pushed to the distribution systems automatically, so inventory stays priced right without a human on the spreadsheet. Around it sit a multi-tenant module (one platform, many agencies or hotel groups), a voucher module, and a Next.js booking front end backed by Node.js and Supabase. The product is live; the company is now looking for its investor — reach out for the details.

  • AI pricing protocol: hotel and room rates set by AI agents and pushed to the systems automatically
  • Multi-tenant by design — one platform serves many agencies and hotel groups
  • Voucher module for packaged stays, gift bookings and B2B allotments
  • TÜRSAB-licensed agency live on the platform today — real bookings, real inventory
  • Open to investment — contact us for the deck and the numbers
  • AIRoom-rate protocol
  • Multi-tenantAgencies & hotels
  • InvestorRound open

Built with

  • Next.js
  • Node.js
  • Supabase
  • AI pricing agents
  • Multi-tenant
  • Voucher module
  • Booking engine
Visit site
Live

Sarraf.io

Jewellery management platform — barcode sales, invoicing, stock and live gold pricing in one app

Built by a member of our team for jewellers and gold dealers. Buying, selling, production, customer records and reporting sit on one platform; barcode-driven sales at the counter, e-invoicing wired in, and a live gold-price feed that reprices stock automatically. A marketplace layer connects dealers to each other. It is the kind of vertical software we like: one industry, every workflow, no spreadsheet left behind.

  • Barcode sales at the counter — scan, price, invoice, done
  • Live gold-price integration reprices the entire stock automatically
  • E-invoicing built in — every sale is a compliant invoice, no re-keying
  • Stock, production and customer management in one ledger
  • Marketplace module connecting dealers for wholesale trade
  • BarcodeCounter sales
  • LiveGold pricing
  • E-invoiceBuilt in

Built with

  • Next.js
  • Barcode POS
  • E-invoice integration
  • Live gold-price feed
  • Marketplace
  • Stock & production
  • Reporting
Visit site
R&D · Showcase

KararKoçu

Integration showcase — AI, auth, credits and email, already wired together

A paused legal-AI prototype we keep on the shelf as a working reference stack. The product logic stayed simple, but underneath it every integration a modern SaaS actually needs is already stitched together: AI answers, authenticated sessions, credit-based metering, transactional email. When a client brief needs the same wiring, we do not start from zero.

  • Production-ready stack on pause — fork it, rebrand it, ship a new client app in weeks
  • Credit-based metering already implemented (the same pattern we use on SaaS apps)
  • Auth, session and transactional email plumbing already proven in production
  • Gemini AI plugged in behind a clean service layer — swap model or domain easily
  • ReadyOn the shelf
  • Fork-ableBase for new apps
  • 4+Integrations wired

Built with

  • Next.js 14
  • Prisma ORM
  • MySQL
  • Gemini AI
  • JWT auth
  • Nodemailer
R&D · Showcase

Ops Portal

Our in-house team OS — the same rigor we bring to every client build

An operating platform we built to run our own team. Tasks, SOP library, credential vault, chat, calendar, file sharing — all mobile-first, locked to our company domain, with every sensitive action logged. When a designer joins, they read the SOPs, pick up their tasks and ship on day one. Handoffs are documented; knowledge compounds instead of walking out the door.

  • Documented standard operating procedures new hires read on day one
  • Credential vault — per-item access, every reveal audited, AES-256-GCM at rest
  • Task approvals, time tracking, @mentions — operational rigor we export to client work
  • File retention with admin lock: SOPs and brand assets never get accidentally deleted
  • Mobile-first: reviewed on the road, approved from the phone, 100% responsive
  • One tool instead of seven — dashboard, chat, calendar, files, knowledge base in a single domain
  • 7+Modules
  • AES-256Vault encryption
  • 100%Mobile-ready

Built with

  • Next.js 16
  • React 19
  • Prisma ORM
  • PostgreSQL
  • Redis
  • TipTap
  • AES-256-GCM vault
  • Let’s Encrypt SSL
Sector Solutions

What We’ve Shipped, by Industry

Sixteen lines of software we have shipped for clients — from marketplaces and loyalty engines to healthcare, logistics and HR. Custom-built on Laravel, .NET, Node.js and pure PHP, GEO-optimized, SEO-maximized, and run on cloud servers.

  • E-Commerce & Marketplaces

    Store, marketplaces and unlimited e-export from one panel — Trendyol, Hepsiburada, Amazon and Shopify wired in.

  • Technical Service Software

    Dispatch, field teams, spare parts and nationwide service directories that rank.

    See it live →
  • Real Estate Platforms

    Listing portals, agent CRM and lead routing built for property teams.

  • Job & Recruitment Platforms

    Postings, applicant pipelines and employer dashboards on one platform.

  • Manufacturing & Industry

    Work orders, production tracking and shop-floor visibility without the paper trail.

  • Inventory & Stock Tracking

    Multi-warehouse stock, barcode counts and reorder alerts in real time.

    See it live →
  • Donation Management

    Campaigns, recurring donors, receipts and reporting for foundations and NGOs.

  • Customer Loyalty Programs

    Points, tiers, campaigns and partner-merchant networks — one engine, many programs.

    See it live →
  • Healthcare Software

    Appointments, patient records and clinic workflows built with patient privacy first.

  • Logistics Solutions

    Shipment tracking, route and fleet visibility, carrier integrations.

  • CRM & ERP Integrations

    Your sales, accounting and operations systems talking to each other — no re-keying.

  • Payment & Accounting Integrations

    Virtual POS, e-invoice and accounting connectors built to each bank’s and tax authority’s spec.

  • API & Integration Development

    We write our own APIs — .NET, Laravel API and Node.js — so your systems never wait on a vendor.

  • Startup MVP Development

    From brief to a testable product in weeks — the same stack we run in production.

  • Education Software

    Course platforms, student tracking and institution portals.

  • HR Software

    Onboarding, leave, performance and payroll hand-offs in one place.

Every tile is software we have already shipped for a client. Have a project like this?

About Yellow Cart Family Store

Who We Are

Yellow Cart Family Store LLC is a software company registered in Sheridan, Wyoming. Our engineering team works from İzmir, Türkiye, and serves clients in the United States remotely. On this page we show the custom platforms, sector software and e-commerce tools we build — measured by what they do for the business, not by vanity metrics.

AI-First Development

Our tools use current AI models — Google Gemini for search-ready content, Anthropic Claude for sales assistants and pricing agents. Output is structured, on-brand and set up for each client.

Native Across Every Channel

Shopify, Google, Amazon, Meta, TikTok, Anthropic — we are certified partners and we build inside the tools your customers already use, instead of sending them somewhere else to do the work.

Privacy & Compliance

Privacy is designed in from the start. We collect only the data a feature needs, AI keys stay on the server, and every public endpoint is rate-limited against abuse. Store and account data is kept on uninstall so a return is seamless.

Cloud-Native, Worldwide

Everything we ship runs on cloud hosting or dedicated cloud servers — never a shared box. A client in Texas, a buyer in Paris and a merchant in Dubai get the same load time. Multi-language routing with hreflang and canonical logic comes standard.

High Quality Score, More Conversions

For paid-traffic sites we build lean — often pure PHP — so Google Ads Quality Score goes up, CPC goes down and every click lands on one clear path to convert. Dozens of sector businesses run on this pattern.

We Write Our Own APIs

.NET, Laravel API, Node.js — when your systems need to talk to each other, we build the layer ourselves instead of waiting on a vendor. Marketplaces, banks, accounting, ERPs: integrated to spec.

Data-Driven, Not Opinion-Driven

Weekly and monthly reports, transparent attribution, every decision traceable to a number. We prefer “here is what the data shows” over “here is what we feel” — every claim on this page is something we can back up.

Partnership, Not Provider

We don’t hand you dashboards and leave. You get direct access to the team that built the tool, strategies that adapt to your market, and a long-term view instead of a quick sale.

Official Partnerships

Certified & Trusted

We are a certified partner of the platforms our clients depend on — from ad networks and commerce to AI — reviewed and held to their standards.

Technology

Our Stack

Laravel, .NET, Node.js, Next.js, pure PHP, Supabase — chosen per project, never by habit. This is the infrastructure behind everything you see here, all of it on cloud servers.

  • Next.js 15
  • React 19
  • Node.js
  • Laravel
  • Laravel API
  • Pure PHP 8
  • .NET
  • Supabase
  • PostgreSQL
  • MySQL
  • MariaDB
  • Redis
  • Prisma ORM
  • BullMQ
  • Astro
  • WordPress
  • Shopify Polaris
  • Shopify Admin API (GraphQL)
  • Anthropic Claude
  • Google Gemini 2.5 Flash
  • Nginx
  • PM2
  • Ubuntu 24.04
  • Let's Encrypt SSL
  • Cloud / VPS servers
  • Google Tag Manager
  • Schema.org

Let’s build the next one together

From AI-powered Shopify apps to nationwide booking platforms — if it involves code, commerce or conversion, tell us what you want to build.

Contact

Tell us about your project

Send a short brief and we’ll reply by email within one business day. Prefer chat? Message us on WhatsApp or by email in one tap.

We use your details only to reply. See our Privacy Policy.