Notes from the build.
Nine years of shipping production software leaves scar tissue worth sharing. These are the lessons we wish someone had written down for us — no listicles, no SEO chum, no funnel at the end.
Three essays. All earned.
Every note comes from a system we shipped and still operate. We'd rather publish three we stand behind than thirty we don't.
The disciplines behind the notes.
We only write where we've shipped. Each topic maps to systems running in production right now.
AI & ML
Forecasting, decisioning and the data plumbing that makes a model trustworthy in production.
2 essaysAI Agents
Voice and chat agents that earn autonomy — guardrails, transcripts and human-in-the-loop.
1 essay · more soonSaaS & Platform
Multi-tenancy, RBAC and billing — the foundations that decide whether you scale or rewrite.
1 essayOps & ERP
Retiring spreadsheet empires module by module, without a big-bang rollout that fails by decree.
In the worksMobile & IoT
Offline-first systems for fridges, clock-ins and dead zones — where connectivity is a bonus.
In the worksStreaming
Engineering for the worst sixty seconds: spikes, CDN failover, and why chat breaks first.
In the worksInfrastructure
Infrastructure as code that turns compliance into a by-product and audit prep into hours.
In the worksPractice
How we estimate, price outcomes over hours, and ship fixed-scope without cutting corners.
In the worksThe work behind the words.
Every essay traces to a real system. Here are the case studies the notes were written from.
The people who shipped it.
Every note is written by the people who built and still operate the system it's about.
Hariom Kesharwani
Hariom Kesharwani is the founder of CODT Technologies, the enterprise software firm he started in 2017. He works hands-on across mobile, SaaS, and AI engagements, helping founders and enterprises ship production systems that last.
Aman Tiwari
Aman builds AI agents that run in production — voice, chat and back-office automation that has to stay reliable in front of real customers. He works on the guardrails, transcripts and human-in-the-loop systems that let automation earn its autonomy.
Vinay Kumar Verma
Vinay works on platform foundations — multi-tenancy, identity and billing — the architecture that lets one codebase serve many markets without forking. He has built the tenancy, RBAC and billing layers behind SaaS platforms operating across 40+ countries.
One email a quarter. Worth opening.
The best of these notes, condensed — technical lessons our team thinks are worth your time. No funnel, no spam, unsubscribe anytime.
4 emails a year · read by founders, operators & CIOs
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