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APAbhilash PSinabhilashps.me·Jan 12 · 5 min read

Invariants and Their Role in Software Systems

Definition When we design software systems, we often discuss rules, validations, and best practices. These concepts are familiar and useful, but they operate at the surface level of system behavior. Beneath all of them lies a much stronger idea—one t...

APAbhilash PSinabhilashps.me·Jan 1 · 7 min read

Authorization in Django: From Permissions to Policies : Part 2 — What a Permission Really Is in Django

If authorization in Django feels confusing, a big reason is that permissions often get described as if they do work. They don’t. A Django permission is not a rule engine. It is not a policy. It is not an authorization decision. It is simply a named c...