Insights
Notes from the workbench.
Practical guides on AI agents, SaaS development, marketplaces, mobile apps, and shipping high-performance websites — written by the team that builds them.
AI Calling: an agent that answers your phone
Meet AI Calling, a voice agent that answers your business phone, checks availability, and books the appointment live on the call. Try the demo.
WhatsApp AI Receptionist: Book Appointments 24/7
Meet Digitizia's WhatsApp AI receptionist: it answers customers, checks live availability, and books appointments 24/7 inside WhatsApp. Try the live demo.
The high-performance Next.js website checklist
A no-fluff checklist for Next.js sites that score 95+ on Lighthouse and load under 1.5s globally - caching, fonts, images, and Core Web Vitals.
Build a custom MCP server for your business
Why your business needs an MCP server in 2026, what to expose, how to build and deploy one with Next.js, and where it fits alongside AI agents.
Build a RAG chatbot for your knowledge base
A practical guide to building a retrieval-augmented chatbot over your documents - chunking, embeddings, vector search, and avoiding hallucinations.
React Native vs Flutter in 2026: which to pick
An honest comparison of React Native and Flutter for cross-platform apps in 2026 - performance, ecosystem, hiring, and the framework we recommend.
WhatsApp Business API integration for SaaS
How to integrate WhatsApp Business API into a Next.js or Node product - Cloud API setup, message templates, opt-in handling, and AI automation.
Stripe billing system in Next.js: full guide
A complete guide to wiring Stripe Billing into a Next.js SaaS - Checkout, Customer Portal, webhooks, metered usage, trials, and dunning that works.
AI receptionist for clinics: stop missing calls
How clinics and dental practices use AI receptionists to answer calls 24/7, book appointments, and cut no-shows, with HIPAA-aware architecture and costs.
Building an on-demand service marketplace app
A guide to building on-demand service marketplace apps for home services and repairs - architecture, payment splitting, dispatch, and real costs.
Vertical SaaS in 2026: pick a niche that pays
A founder's playbook for vertical SaaS in 2026 - picking a profitable niche, the AI features customers expect, our stack, and realistic build costs.
AI voice agents for small business
A practical guide to AI voice agents that answer calls and book appointments - comparing Vapi, Retell AI, and custom builds, with real costs and ROI.
Sending email from Next.js with Resend
A hardened, copy-paste guide to wiring Resend into Next.js App Router - validation, HTML escaping, reply-to handling, rate limiting, and domains.
Prefers-reduced-motion in React & Next.js
How to honor prefers-reduced-motion in React and Next.js with Framer Motion, CSS, and IntersectionObserver animations that pass accessibility audits.
Real estate marketplace with Next.js & AI avatar
How we built a Next.js real estate marketplace with real-time listings, Mapbox search, and a Heygen AI avatar that guides buyers through properties.