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Deep dives into software engineering, inclusive technology, and lessons from building real products.

12 posts found/ 90
Cover image for blog post: Loop Engineer: o metodo de Andrej Karpathy para criar agentes que melhoram sistemas em ciclos autonomos
#loop-engineering#karpathy-loop#autoresearch

Loop Engineer: o metodo de Andrej Karpathy para criar agentes que melhoram sistemas em ciclos autonomos

Loop Engineering muda o foco de prompts isolados para ciclos de hipotese, execucao, avaliacao e rollback. Este guia explica o padrao de Andrej Karpathy, como o Autoresearch funciona e como aplicar a ideia em software, SaaS e agentes reais.

18 min read
280
0
Cover image for blog post: System Design de um Banco Digital: Arquitetura Completa de uma Fintech como o Nubank
#system-design#fintech#arquitetura

System Design de um Banco Digital: Arquitetura Completa de uma Fintech como o Nubank

Como desenhar o sistema completo de um banco digital de ponta a ponta — do ledger de partidas dobradas e idempotência financeira até event sourcing, sagas, antifraude e os trade-offs de consistência do Teorema CAP. Guia hiperdetalhado, com diagramas e TypeScript real.

115 min read
580
0
Cover image for blog post: Testes Automatizados na Era da IA: A Estratégia Completa para 2026
#testesAutomatizados#iaTestes#propertyBasedTesting

Testes Automatizados na Era da IA: A Estratégia Completa para 2026

AI can generate a test suite with 94% coverage in minutes — but a mutation score of 31% reveals most tests don't detect bugs. This article presents the New Test Pyramid for the AI era, combining property-based testing, mutation testing, and AI-supervised generation.

25 min read
241
0
Cover image for blog post: Como eu coloquei o Claude para fazer QA do meu SaaS sozinho
#QA#ChromeDevTools#MCP

Como eu coloquei o Claude para fazer QA do meu SaaS sozinho

Um loop de testes exploratórios dirigido por IA via Chrome DevTools MCP — 4 lentes de especialista, relatórios automáticos em disco, zero progresso perdido. O case real é o VibingCash, um copiloto financeiro AI-native.

13 min read
298
0
Cover image for blog post: Projetando Armazenamento de Arquivos em Escala: System Design de Dropbox e Google Drive
#SystemDesign#ArmazenamentoDeArquivos#Dropbox

Projetando Armazenamento de Arquivos em Escala: System Design de Dropbox e Google Drive

Um guia completo de system design para construir uma plataforma estilo Dropbox ou Google Drive com upload resumível, chunking, deduplicação, metadados, cursores de sincronização, compartilhamento,...

50 min read
140
1
5.0
Cover image for blog post: Building My Own Plugin and Skill Marketplace: The Lemon AI Hub
#AI#LLM#Marketplace

Building My Own Plugin and Skill Marketplace: The Lemon AI Hub

Explore the journey of creating Lemon AI Hub, a personal plugin and skill marketplace designed to centralize intelligence and automation in a single modular ecosystem.

4 min read
142
0
Cover image for blog post: AOP Reimagined: Decoupling Cross-Cutting Concerns in TypeScript, C#, and Java
#software-architecture#aop#typescript

AOP Reimagined: Decoupling Cross-Cutting Concerns in TypeScript, C#, and Java

Stop littering your business logic with logging and security checks. Learn how to use Aspect-Oriented Programming (AOP) to centralize cross-cutting concerns across TypeScript, C#, and Java with real-world implementation patterns.

7 min read
84
0
Cover image for blog post: Construindo meu próprio Marketplace de Plugins e Skills: O Lemon AI Hub
#AI#LLM#Marketplace

Construindo meu próprio Marketplace de Plugins e Skills: O Lemon AI Hub

Explore a jornada técnica e estratégica da criação do Lemon AI Hub, um ecossistema modular de agentes e skills que resolve o problema da fragmentação de inteligência artificial pessoal.

4 min read
144
1
3.0
Cover image for blog post: O Padrão Ouro do Agentic Value Loop: Automatizando a Entrega de Valor
#AgenticWorkflows#ClaudeCode#Automation

O Padrão Ouro do Agentic Value Loop: Automatizando a Entrega de Valor

Discover how VibingCash transformed agentic development into a deterministic assembly line, guaranteeing one real value increment per iteration through the Agentic Value Loop playbook.

5 min read
157
0
Cover image for blog post: Design de Sistemas para Editores Colaborativos: Google Docs e Figma em Profundidade
#SystemDesign#EditorColaborativo#GoogleDocs

Design de Sistemas para Editores Colaborativos: Google Docs e Figma em Profundidade

Um design de sistema de nível produção para editores colaborativos, cobrindo sessões em tempo real, trade-offs entre OT e CRDT, sincronização offline, logs de operações, snapshots, permissões, hist...

50 min read
180
0
Cover image for blog post: E-BOOK: AI Native developer
Featured
#AI#Engineering#SystemDesign

E-BOOK: AI Native developer

Um e-book para desenvolvedores que querem se tornar AI-native — não só usar o chat, mas entender e construir os sistemas agênticos por baixo dele.

4 min read
168
0
Cover image for blog post: Projetando um Motor de Busca em Escala: Guia Completo de System Design
#SystemDesign#SearchEngine#WebCrawler

Projetando um Motor de Busca em Escala: Guia Completo de System Design

Um guia prático e senior para desenhar um motor de busca em escala de internet, cobrindo crawler frontier, robots.txt, sitemaps, canonicalização, deduplicação, índice invertido, ranking, snippets.

40 min read
194
0
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