Rahinex Technologies

Writing

Notes from the team.

Opinionated writing on AI agents, SaaS engineering, WhatsApp systems, and the tools we build with every day. No thought leadership, no listicles.

Coming soon

What we're writing about next.

AI & agents

AI agents that actually ship

What separates a demo-stage chatbot from a production agent that runs part of a business. Architecture notes from systems we run in the wild.

Drafting
AI & agents

News-grade AI systems

Turning firehoses of content into clear signal — real-time summarisation, source ranking, and the retrieval patterns we use to keep answers honest.

Drafting
SaaS engineering

The SaaS stack we default to

Six reasons our default engineering choices change slowly and one reason they change fast. A short manifesto on shipping reliable software quickly.

Drafting
Messaging

WhatsApp-native products

Why WhatsApp beats a mobile app for entire categories of software — and the handful of design patterns that make WhatsApp-first products feel native.

Drafting
Product

Building for a global operator

Multi-lingual from day one, time-zone aware, cloud-native, region-aware pricing. Notes on designing products that work for operators anywhere.

Drafting
Evolving tech

Edge runtimes, Web3 and what comes next

We rotate our stack about every 18 months. Here is how we decide what stays, what gets adopted, and what we quietly retire.

Drafting

Stay in the loop

Want to know when something new lands?

We don't run a newsletter. Drop us a line at hello@rahinex.com and we'll add you to a short list we email when a new post goes live.