Juan Cruz Martinez's Avatar

Juan Cruz Martinez

@jcmartinez.dev

I stream, blog, and make youtube videos about tech stuff. I love coding, I love React, and I love building stuff!

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29.11.2023
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Latest posts by Juan Cruz Martinez @jcmartinez.dev

Treat AI like a Junior Pair: fast, tireless, and occasionally hallucinating.

Without guardrails, AI doesn't create value; it creates high-velocity tech debt.

Your safety systems:
* Tests written first
* Atomic changes
* Design notes
* Code review

AI suggests. You own. Never confuse the two.

24.12.2025 19:27 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

If you want to level up, stop just closing tickets.

❌ The Old Way: Focus on volume.

βœ… The New Way:
* Own outcomes, not just tasks.
* Write docs as carefully as code.
* Demand hard feedback quarterly.
* Mentor someone 1 step behind you.

Don't just work more. Work differently.

23.12.2025 20:12 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

AI helps you run faster. Systems tell you where to run.

Without prioritization frameworks, decision logs, or a clear Definition of Done, AI isn't an accelerator, it’s just a distraction engine.

Don't use AI to mask a broken process. Fix the system, then hit the turbo button.

22.12.2025 14:42 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Want to grow as an SE?

Stop optimizing only your code. Start optimizing the machine that builds the code.

β€’ Decisions: Move from endless debates to clear frameworks.
β€’ Flow: Move from meetings to RFCs and async updates.
β€’ People: Move from "fixing it for them" to unblocking them.

Impact > Hours.

18.12.2025 19:37 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

For devs, the most underrated productivity system is boring: sleep, movement, deep work blocks, and uninterrupted evenings. Fancy tools help, but they can’t compensate for a fried brain and constant context switching. Protect 2–3 hours of real focus a day and one real day off a week.

17.12.2025 21:07 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

β€œHustle” culture quietly taught developers that loving your craft means always being available: nights, weekends, side projects, open source. That’s how many of us ended up burned out and resentful. A healthier frame: you’re a better engineer when your life is bigger than your job.

16.12.2025 15:02 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Burnout for developers isn’t about working hard, it’s about working endlessly with no recovery. In 2025, stress is quietly killing code quality, creativity, and motivation. The fix isn’t more hacks, it’s sustainable habits: sleep, boundaries, focus blocks, saying no.

15.12.2025 14:47 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

If you’re a developer, productivity is not how many hours you sit at your desk, it’s how often you can do high-quality, focused work without burning out. Happy, well-rested devs ship better systems, make fewer mistakes, and stay longer. That’s not soft talk, it’s business impact.

12.12.2025 15:42 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Signs you’re heading toward developer burnout: you dread simple tickets, tiny bugs feel huge, you keep working late but ship less, and hobbies disappear. I’ve been there. The turning point wasn’t a new tool, it was permission to slow down and reset. You don’t have to earn rest with exhaustion.

11.12.2025 14:48 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Preview
How to Add Sign in with Vercel to Auth0 Learn how to integrate "Sign in with Vercel" into your Auth0 applications, letting people use their Vercel Identity to log in to third-party apps.

πŸš€ Want to let your users sign in with their Vercel account? I just published a quick guide showing exactly how to add Sign in with Vercel to Auth0. Super simple and smooth for onboarding.

Read it here: auth0.com/blog/add-si...

04.12.2025 22:22 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Post image

My kindle is officially dead!

I love my kindle, I think it's the oldest device I own, being almost 10 years old now, the plastic was already sticky, probably not that healthy to touch, but it was still working amazingly!

But this weekend took a fall, and now it's gone!

Good bye old friend!

11.11.2025 21:03 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The next era of developer content won’t be about outsmarting algorithms, but rather It’ll be about out-authenticating machines.

As a developer, how can you tell a piece of content is just AI?

11.11.2025 09:32 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I truly believe that the future of content will be AI-resilient content, the kind that comes from lived experiences, expert level, opinionated content, content that generates trust, you know... the kind of content AI can't write.

If AI could have written it, it’s not good enough.

11.11.2025 09:32 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I don't think this is an AI issue though, I think it's a problem with incentives + lazy use of AI.

11.11.2025 09:32 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Let’s be honest:
AI is flooding the internet with content.

Every search, every feed, every community is starting to feel… the same.
Recycled insights. Rewritten posts. Infinite noise.

As a developer I feel it, but again, sometimes I'm part of the problem too.

11.11.2025 09:32 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Post image

At this point, he probably knows more already about running linux, terminal commands, and LLMs than a lot of full time devs 🀣.

He's living the life! Kudos to him!

It’s honestly inspiring β€” proof that curiosity + consistency > credentials.

10.11.2025 15:34 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I know I'm late to the game, but... what in the world? since when PewDiePie is so legitimately "cool" and kicking ass in YT as a total nerd?

This guy is killing it!

It really shows the power of having a goal in mind, focus, and time to go all in on something!

10.11.2025 15:34 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Writer β†’ AI to expand and format β†’ Reader β†’ AI to summarize
vs.
Writer β†’ Prompt β†’ Reader

No context lost. No nonsense added.

Keep it human. Keep it clear.

21.10.2025 19:57 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

AI loves to make things sound fancy, but in doing so, it often loses context or key details.
And when it gets too verbose, guess what happens?
The reader spends more time trying to understand it… or worse, asks AI to summarize what AI wrote. πŸ˜…

See how wild that loop is?

21.10.2025 19:57 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Year-end reviews are around the corner β€” quick reminder:

If you’re using AI to write your feedback… just don’t.

Honestly, I’d rather get the prompt you gave the AI than the polished version.
That’s where your real judgment, examples, and intent live.

21.10.2025 19:57 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

It’s trusting the version of you who made clear decisions when your head wasn’t foggy.

Small loop. Big compounding effect.

Maybe is that I don’t trust myself to leave things to chance, but when I plan my day, even if there are deviations, I feel like I get more done!

18.10.2025 08:28 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

πŸŒ€ Wake up
πŸ“‹ Review what yesterday’s β€œme” decided
🎯 Focus and execute (study, code, write β€” whatever’s on the list)
πŸ“ Before logging off, plan tomorrow
😴 Sleep
πŸ” Repeat

It sounds boring, but it’s magic.

The trick isn’t finding motivation every morning.

18.10.2025 08:28 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I learned this the hard way.

For years, I’d wake up, grab coffee, open my laptop… and spend 30 minutes deciding what to do.
By the time I started working, my brain was already tired from negotiating priorities.

Now I follow a simple loop:

18.10.2025 08:28 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Every time I’ve been stuck, in code, communication, or leadership, this reminder helped me move forward.

When you shift perspective, problems become patterns. Patterns become systems. Systems can be improved.

What perspective shift helped you grow the most?

17.10.2025 16:51 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

One of the most powerful tools in your career isn’t a framework, a process, or an AI model. It’s perspective.

β€œChange the way you look at things, and the things you look at change.” - Wayne W. Dyer

17.10.2025 16:51 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

queIt’s a simple second brain that grows a little every time I read.
It’s the easiest way I’ve found to make my reading actually useful.

πŸ‘‰ What's your system to transform words into reusable knowledge?

16.10.2025 08:31 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

My reading insights become active ingredients in my creative process, not just forgotten quotes buried somewhere online.

---

✨ Why this works for me
* Minimal setup, everything happens automatically
* No extra subscriptions or complicated workflows
* Apple Notes search makes rediscovery effortless

16.10.2025 08:31 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

3️⃣ Build a living second brain

Because Apple Notes is my daily workspace, these synced highlights naturally resurface when I’m:
* Writing a post or essay
* Planning a project
* Reflecting on something I’ve read

16.10.2025 08:31 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

2️⃣ Auto-sync to Apple Notes

Readwise’s Apple Notes sync feature pushes everything into a folder called Readwise inside my Notes.
Each book, article, or source gets its own note with the title, author, and tags.

Now all my highlights live inside the same app I already use for journaling, and more.

16.10.2025 08:31 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

1️⃣ Collect everything in Readwise

@readwise automatically pulls in:
* My Kindle highlights every time I finish reading
* Article highlights from Readwise Reader or Pocket
* Email newsletter snippets I forward to my Readwise inbox

It’s become the central vault for everything I read and highlight.

16.10.2025 08:31 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0