Writing / Build

Build

Technical and product breakdowns — how I built systems, designed architectures, and solved real engineering problems.

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How I built Fleet OS

Flagship

Full-stack EV fleet operating system — Fleet Ledger data model, Data Harness, rider onboarding 7-step, KYC hybrid, WhatsApp gateway, Cloudflare Queues + R2.

ProductFull-stackAI
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Designing an AI Data Harness

SOURCE → IDENTITY → SCOPE → CLASSIFICATION → VALIDATION → PERMISSION → AI POLICY → ACTION → AUDIT → LEDGER. Every WhatsApp message gated through the harness.

AIDataSecurity
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WhatsApp → AI Operations

WhatsApp API gateway single transport, wa.example.com gateway, human-in-the-loop approval for HIGH risk, auto-reply via [redacted phone], document processing job idempotent processing.

WhatsAppAIAutomation
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Building AI approval systems

AI assistant vs AI operator: identify → propose → approval → execute. Human-in-the-loop governance for production AI systems.

AIGovernance

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Cloudflare Workers + Queues + R2

Idempotent document processing job processing, hash(messageId+attachmentId), Evidence 96% confidence, Container warm DR, R2 private presigned.

InfrastructureCloudflare
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