Juan Andrés Núñez.

Senior Frontend Engineer specializing in Agentic AI, professional educator and speaker. Where engineering meets humanism.

Juan Andrés Núñez
Focusing on

Building FrontendLeap: teaching how to build the professional Web with GenAI and learning science.

Helping companies and teams go AI First on the Claude platform.

Claude Code

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Claude Code: from zero to professional. Tips, tutorials and deep dive guides from an engineer who uses it 12 hours a day.

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#228

Claude Code Desktop environments: local, cloud, SSH or Remote Control

Claude Code Desktop's environment picker now saves where sessions start: local folders on a shortcut, the cloud, an SSH host or Remote Control. How to create each one, and what the cloud one gets you.

#227

Agent(model:opus) in Claude Code: your subagents still run on Opus

The deny rule that looks like it keeps your subagents off Opus only stops one of three cases. I tested it: the other two ran on Opus anyway. Here's what actually pins them.

#226

"You should know" in Claude Code: catch the calls Claude makes quietly

A built-in mod, off by default, reviews your session every 6 steps and flags the calls Claude made without mentioning them. In my test it caught a bug the tests couldn't see.

#225

Claude Code wrap-up allowance: no more half-done work at the 5-hour limit

The wrap-up allowance lets Claude Code finish the step it's on when you hit the 5-hour limit, instead of stopping with an edit half applied. Your weekly limit pays for it. How often you get it on each plan, and when it doesn't apply.

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