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INSIGHTS
Practical notes from 30+ years of building software.
Short, specific articles on the decisions that matter most in SaaS, AI automation and modernization.
6 min read
How to build a multi-tenant SaaS without leaking customer data
A practical tenant-isolation checklist for SaaS: tenant IDs, PostgreSQL row-level security, background jobs, AI knowledge bases and the tests that prove it.
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When not to build an AI agent, and what to build instead
Many business problems do not need an autonomous AI agent. How to decide, and a safer pattern: structured extraction, validation, confidence scores and human review.
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Modernizing a legacy .NET system without a risky rewrite
Why big-bang rewrites fail and how to modernize a business-critical .NET, SQL Server or AS/400 system in small, reversible steps while it keeps running.
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