Stack - Built for production.
Every tool below ships in client systems today. No demoware, no buzzword bingo — what we actually pick when we have to support it for years.
Every tool. Production-tested.
Filter by layer or hover to inspect. Each one runs in a Zaibex client system today — no demoware in this grid.
Each tool earns its place.
The list above is the surface. Here’s the reasoning behind the picks we’ve made over and over again across client systems.
App Router, streaming, server components, edge runtime. The default for everything we ship on the web.
One database for relational data, full-text search, and vector embeddings (pgvector). Fewer moving parts in production.
Zero-config deploys for Next.js, edge-cached SSR, and preview URLs for every PR. Where most of our client systems live.
Best instruction-following under load, safer fallbacks, and the cleanest tool-use API of the frontier labs.
AI avatars and lifelike narration for product walkthroughs, onboarding, and localization. Cloned likeness, cloned voice, every supported language — without recording a single take.
Sub-second voice agent latency on real telephony, with hot-swappable LLMs and turn-detection tuning. The default platform for every production voice agent we ship.
Real SIP, real PSTN, real numbers. The infra layer beneath the voice agent — owned numbers, programmable routing, recording.
Self-hostable workflow orchestration. Where we wire CRMs, LLMs, and back-office systems together — visible to non-engineers.
How we pick.
Modern doesn’t mean reckless. Here’s the four-line filter that decides whether a new tool earns a place in a client system.
Best-in-class per layer.
No one-stack religion. We pick the strongest tool for each job — Next.js for the web, Postgres for data, Claude for reasoning, Vapi for voice — and engineer the interfaces between them.
Frontier-first, when it ships.
We track the edge of every layer we use. New models, new frameworks, new infra — in production within days of being viable. Speed of adoption is the edge.
Owned, not rented.
Self-hostable wherever it counts. n8n over $1K/mo SaaS lock-in. Postgres + pgvector over a separate vector DB. Your clients own the system — not the subscription bill.
Built to swap.
Claude is the default — but every LLM call sits behind a swappable interface. When a better model ships next month, your application code doesn’t need a refactor.
See how we use them.
Pick a service, scope a build, or just book a free audit. The stack is in service of the work — not the other way round.
Got an AI project stuck in pilot? We ship.
Tell us what you’re trying to build. A free 40-minute AI audit — live consultation, a look at your stack and workflows, and a written report on what off-the-shelf tools fit or whether you need a custom build. If it’s a fit, a fixed-price scope lands in your inbox within 48 hours.
Free · 40 min · written report · no slides
Based
- KarachiStudioSenior engineering team
Pakistan (GMT+5) - ColoradoHQZaibex LLC
United States