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- Career
Cloud certifications: AWS, Azure or GCP
A comparison of AWS, Azure and Google Cloud certification tracks: real costs, study order, what the market asks for and when it is not worth it.
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Henrico - AI and Data
RAG: make an LLM answer with your own data
RAG retrieves relevant passages from your documents and injects them into the prompt before the model answers. See the architecture and how to evaluate it.
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Henrico - Security
Deepfakes and AI scams: how to protect yourself
Voice cloning, fake video and CEO fraud got cheap. See how these scams work, the warning signs and the processes that actually protect you.
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Henrico - Infrastructure and DevOps
n8n: AI workflow automation, self-hosted
n8n connects APIs, databases and AI models in visual flows with code when needed. See how it works, the real cost and when it beats Zapier and Make.
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Henrico - Infrastructure and DevOps
Terraform and Infrastructure as Code
Terraform describes infrastructure in versioned files and applies changes predictably. See the workflow, the state, common mistakes and OpenTofu.
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Henrico - Programming
Next.js: the React framework for production
Next.js solves routing, rendering and caching for React. See the App Router, Server Components, rendering strategies and when it is not worth it.
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Henrico - Programming
Rust: memory safety without a garbage collector
Rust delivers C-level performance with memory safety guaranteed at compile time. Understand ownership, the borrow checker and the real learning curve.
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Henrico - Infrastructure and DevOps
Kubernetes: a practical guide to orchestration
Kubernetes orchestrates containers at scale: how the control plane works, the essential objects, when to adopt it and when it is unnecessary weight.
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Henrico