// insights
Field notes on building software
Engineering-grade guidance on the decisions behind custom software and AI systems.
July 15, 2026
Custom software vs SaaS: a total-cost decision framework
When buying SaaS beats building custom software and when it quietly stops making sense: a practical framework covering fit, per-seat math, integration debt, and exit risk.
July 15, 2026RAG platform vs custom RAG build: which fits your business data?
An engineering comparison of off-the-shelf RAG platforms and custom retrieval builds: cost structure, data control, accuracy on messy data, and when each wins.
July 15, 2026What does a software development retainer actually include?
A plain-language explanation of development retainers: what the monthly block covers, how prioritization works, and how to judge whether a retainer is healthy.
// next step
Have a system in mind?
Describe what you are trying to build or fix. A senior engineer reviews every inquiry and responds directly, with a technical read on the problem.