Journal

Notes From

The Build

What we're learning building websites, products, and AI systems for real businesses — written down as we go.

Product & BusinessOctober 2026 · 9 min read

How Much Does It Cost to Build a Marketplace App in India? (2026)

The real numbers — escrow, split payouts, OTP verification, programmatic SEO — from a team that has shipped two live marketplaces. What agencies quote vs. what it actually costs to build something that works.

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EngineeringOctober 2026 · 8 min read

Razorpay Escrow vs. Payment Links vs. Route — Which for Your Marketplace?

Three Razorpay products, three different problems. Escrow for service marketplaces with offline delivery, Route for split payouts in rental and e-commerce, Payment Links for neither. How to pick — and what DPDPA 2023 changes.

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Case StudyOctober 2026 · 10 min read

Building a P2P Rental Platform — What We Learned Building BookmeDrive

Dual-workspace accounts, WhatsApp over SMS, programmatic SEO across 80+ Tricity localities, penny-drop bank verification. What we got right, what we rebuilt, and what we'd do differently.

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EngineeringSeptember 2026 · 7 min read

Next.js 16 Server Actions: What Actually Changed

Next.js 16 splits cache invalidation into three purpose-built functions and replaces Partial Pre-Rendering with an explicit 'use cache' model. Here's what that means for how you write mutations.

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AI & AutomationSeptember 2026 · 8 min read

GraphRAG vs. Vector Search: Picking the Right Retrieval Layer

Vector search and GraphRAG solve different retrieval problems. One is fast semantic lookup; the other is multi-hop reasoning over relationships. Most production systems need to know which — or both.

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