Krishna Palle — product, systems, and the code underneath them · Hyderabad

I build products from the constraint outward.

I follow a problem past the handoff: from user behaviour and interface to the product model, the system, and the code. The pattern shows up in three calls: make consent the product, not a setting; build one platform under five games; reject a flattering model result when it is wrong. Ten case studies show the decisions, trade-offs, and ownership behind work in health, finance, games, payments, and SaaS.

Explore the work → What I'm building now ↓ Read what I think →

IDecisions I would defend

The work is easiest to judge by the calls I got to make and the options I gave up to make them.

Vaulth AI · architecture

Consent is the product. The records are just what it governs.

Seven caregiver scopes enforced across 61 endpoint applications, every external view token-gated and revocable, family circles that share a trend and never the raw number.

Rejected: the aggregator posture — access in exchange for custody. The faster product and the better-funded business model.

Read the decision →

Arth · architecture

Rules first. The model is the fallback, not the feature.

Bank SMS, PDF statements, and CSV exports converge on one on-device pipeline: deterministic rules for the common case, a 4-bit model only for the uncertain tail.

Rejected: model-first parsing, which would have made the product slower, more expensive to run, and harder to trust.

Read the decision →

Cricket Manager · judgment

Treat a suspiciously good score as a defect.

A 0.98 correlation on the ratings model was the most flattering number the project ever produced. I read it as evidence of a problem and went looking for the leak.

Rejected: reporting it as the headline validation result, which would have been true, checkable, and misleading.

Read the decision →

IICurrently building

Current
Vaulth AI · 2026—

A family's medical records should answer to the family.

In India those records are scattered further than the software assumes — hospital silos, WhatsApp threads, prescription drawers, lab portals — and every existing answer has an owner problem. Portals hold records hostage to one provider; aggregators take custody in exchange for access. Vaulth's answer is that the family is the owner, and that consent, not storage, is the product. I built the consent architecture first and hung everything else off it.

Stage
The platform runs — seven services, a mobile app across fifty screens in six Indian languages. It is pre-launch. DPDP-aligned and HIPAA-aligned, not certified; those are the words used everywhere, including to customers.
Not building
Diagnosis. Anything that needed a second engineer to be safe. The aggregator business model, which was both faster to build and easier to fund.
Learning
That working alone means manufacturing the friction a team gives you free — review, a claims-verification step, blocking CI gates — or the work quietly gets worse in the exact places nobody is left to look.

The case study — ten decisions and what each cost →
vaulthai.health — the platform itself

IIIThe body of work

  • Arthside project

    Can a finance app understand your money without ever being told what it is? Bank SMS, PDF statements and CSV exports parsed on-device by a deterministic-first cascade, with a 4-bit Gemma-3 behind a hand-written FFI bridge for the long tail.

    0 bytes transmittedphase 4 of 5 — unreleased

  • Cricket Managerside project

    How do you make a simulated cricketer behave like the real one — and how would you know if you had failed? A ball-by-ball engine calibrated on 2.07 million real T20 deliveries, player ratings adapted from the Earth Similarity Index, and a live event-sourced auction.

    2.07M deliveries modelled 0.98 correlation — rejected as headline

Ten projects across product platforms, independent systems, and research-led builds →

2022 — 2026

IVThe climb

Every year the question changed. That was the trajectory — not the titles.

2022

Pixels

Figma, user flows, design systems, and the negotiation between beauty and the frontend.

How should this screen work?
2023

The whole machine

I stopped treating the handoff as the edge of my job — instrumentation, funnels, the data behind the interface, and enough of the system to argue with the people building it. The backend and infrastructure depth came later, and deliberately.

How does this entire product work?
2024

Product

A multi-product portfolio. Retention curves, onboarding funnels, pricing, roadmaps. I stopped optimising components and started optimising outcomes.

Why should this exist?
2025

Systems

Depth again, at a different altitude: shared platforms under many products, failure direction chosen per surface, and infrastructure cost treated as a design constraint rather than a bill.

What breaks at scale — and what survives it?
2026

Owning the whole thing

Product, architecture and code on one surface, with nobody to hand any of it to. The backend and infrastructure depth is recent and deliberate — it is what this rung cost.

What is worth building, and who does it answer to?

The stack matters when it changes the product. The decisions show why.

A working thesis

VWhat I currently believe

Half a century ago programmers stopped reading assembly. I think we are living through that moment a second time, and the thing we stop reading is source code.

If that is right, value stops sitting in the typing and moves to the six places the machine cannot go: choosing the problem, judging the product, taste, systems thinking, understanding people, and distribution. It is a position rather than a prediction, it is fine to disagree with, and the essay argues it properly — including the controlled trial that cuts against it.

Software is learning to write itself. Someone still has to know what's worth writing.

The Last Abstraction — 9 min read →

Talk

Building something that should exist? Or want to argue with something on this site? Open to conversations.

pkrishna@vaulthai.health

Book twenty minutes · Working with me · LinkedIn