NAME
Tech notes
Backend, queues, AI and WordPress in production — notes by Filipe Alves de Almeida, in English and Portuguese.
NOTES 7
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79% of my RAG benchmark didn’t need RAG
Most questions in my RAG benchmark were answerable closed-book. What I measured next on an LLM product in production, and what I decided to stop building.
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The hardest part of sending thousands of WhatsApp messages isn’t sending them
Why the webhook becomes the bottleneck when you send WhatsApp messages at volume, and how queues, idempotency and backpressure keep the system alive.
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WordPress 7.1 moves image processing out of PHP and into the browser
WordPress 7.1 processes uploaded images in the browser with WebAssembly and libvips. What changes for PHP memory, server CPU, HEIC files and plugin hooks.
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WordPress 7.0: registering Gutenberg blocks with PHP only
WordPress 7.0 lets simple Gutenberg blocks be registered with PHP alone, no React or build step. When that server-side approach fits, and when it doesn't.
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Open source numa VPS simples: meia dúzia de projetos que resolvem metade do fluxo interno
n8n, Chatwoot, Evolution API e AnythingLLM numa VPS simples: atendimento centralizado, automações e IA de documentos por menos que uma assinatura SaaS.
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IA privada numa VPS: quando a empresa vira dona da operação
Rodar IA privada numa VPS barata, com RAG local e open source, muda a relação da empresa com fornecedores: controle, custo previsível e dados em casa.
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Evolution API instável? Como fixar a versão do WhatsApp no Docker
Instâncias da Evolution API caíram depois de uma atualização do WhatsApp. A correção: fixar CONFIG_SESSION_PHONE_VERSION no docker-compose e subir de novo.
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