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Architecture

The fundamental structures of a software system.

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The Architecture Review Checklist: 41 Questions I Ask

The Architecture Review Checklist: 41 Questions I Ask

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4 min read
Design patterns aren't a catalog — they're a way to predict where change will hurt

Design patterns aren't a catalog — they're a way to predict where change will hurt

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5 min read
When to Park an Over-Engineered Feature Branch

When to Park an Over-Engineered Feature Branch

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3 min read
Designing reliable appointment confirmations with Google Calendar and WhatsApp

Designing reliable appointment confirmations with Google Calendar and WhatsApp

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2 min read
Idempotency as a Product Feature: Run Keys, Leases, and Scheduling

Idempotency as a Product Feature: Run Keys, Leases, and Scheduling

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5 min read
We wrote 32 row level security policies and not one of them runs when our app queries the database

We wrote 32 row level security policies and not one of them runs when our app queries the database

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5 min read
99.7% Rejected in 84ms: Why I Stopped Making the Generator Smarter

99.7% Rejected in 84ms: Why I Stopped Making the Generator Smarter

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7 min read
Why AI Writes Need Risk Tiers: The R0-R5 Tool Risk Model

Why AI Writes Need Risk Tiers: The R0-R5 Tool Risk Model

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4 min read
A PDF preview is a rendering contract: lessons from a Japanese worksheet tool

A PDF preview is a rendering contract: lessons from a Japanese worksheet tool

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4 min read
How I approached multi-tenancy in Next.js with PostgreSQL RLS

How I approached multi-tenancy in Next.js with PostgreSQL RLS

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1 min read
How We Made Audit Logs Immutable at the Storage Layer

How We Made Audit Logs Immutable at the Storage Layer

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4 min read
Behind the Button: How Online Payments Work — and Why They’re Hard to Scale

Behind the Button: How Online Payments Work — and Why They’re Hard to Scale

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5 min read
I Stopped Putting AI Inside My App — I Made AI a Client of My API

I Stopped Putting AI Inside My App — I Made AI a Client of My API

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3 min read
Como os programas rodam na memĂłria

Como os programas rodam na memĂłria

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2 min read
Building TravelMate: Part 2 — Architecture Decisions (And the Ones I Almost Got Wrong)

Building TravelMate: Part 2 — Architecture Decisions (And the Ones I Almost Got Wrong)

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5 min read
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