Insights

Notes from thebuild floor.

Practical engineering writing on shipping eLearning, fintech, and AI products — architecture decisions, tradeoffs, and lessons from production.

Featured · Engineering

Scaling Multi-Tenant LMS Architecture: Lessons from 50K Monthly Active Learners

How we designed a multi-tenant learning management system that scales horizontally while maintaining data isolation, low latency, and high availability for enterprise clients.

10 min read·Jun 18, 2026

Product

How We Ship MVPs in 6 Weeks Without Cutting Corners

Speed and quality are not mutually exclusive. Our approach to rapid product development focuses on ruthless prioritization, reusable architecture, and continuous deployment.

8 min read·Jun 18, 2026

AI

Observability for AI Apps: Traces, Costs, Hallucinations, and Feedback Loops

Traditional monitoring falls short for AI applications. Learn to build observability systems that track LLM traces, API costs, hallucination rates, and user feedback.

12 min read·Jun 18, 2026

Fintech

Payments Integration Checklist: Stripe, Adyen, Checkout.com and Failure Modes

Engineering notes, once a month

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Payment integration looks simple until money goes missing. Learn to integrate Stripe, Adyen, or Checkout.com correctly with proper error handling and reconciliation.

Notes from thebuild floor.

Scaling Multi-Tenant LMS Architecture: Lessons from 50K Monthly Active Learners

How We Ship MVPs in 6 Weeks Without Cutting Corners

Observability for AI Apps: Traces, Costs, Hallucinations, and Feedback Loops

Payments Integration Checklist: Stripe, Adyen, Checkout.com and Failure Modes

Engineering notes, once a month

CI/CD That Actually Ships: Our Practical Pipeline for Web Apps

KYC, AML, and Risk: What to Build First (and What to Defer)

Choosing the Right RAG Architecture: Vector Search vs Hybrid vs Graph

LLM Evaluation Playbook: How We Measure Quality Beyond 'Vibes'

PCI Compliance for Fintech Startups: A Practical Roadmap

Design Systems for Startups: How We Move Fast Without UI Chaos

Security-by-Default for Fintech MVPs: Threat Modeling in a Week

From Monolith to Modular: A Migration Strategy That Doesn't Kill Delivery

Multi-Agent Systems in Production: What Breaks First

RAG in Production: 5 Pitfalls We Learned the Hard Way