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Claude Code locally with $0 cost
This will help you to setup Claude code locally and use it with zero cost
Hi, I'm
Leonardo Salles
I build
A Software Engineer with 12+ years of experience building scalable web applications. Passionate about modern JavaScript, cloud architecture, and creating delightful user experiences.
Recent Posts
How I Use Everyday POCs to Improve My Skills
This article explains why POCs matter, how I approach them, what I actively avoid, and how I use repetition and depth as a long-term strategy for growth.
Automated Counter-Strike 2 Server on AWS and Building a Production-Ready REST API with Node.js and Express
Building an automated, on-demand Counter-Strike 2 server system on AWS using AWS CDK, EC2, Lambda, and more, and a comprehensive guide to building scalable, secure REST APIs with …
Tech Sandbox
A selection of all my POCs and experiments
AWS CDK Counter-Strike 2 Server
A server to host Counter-Strike 2 games using AWS CDK
AWS
CDK
Docker
EC2
+1
Module Federation
Understading Host and Remotes architecture with Module Federation using RSPack
TypeScript
Webpack
React2Shell
A POC to validate and understand React2Shell (CVE-2025-55182) vulnerability
TypeScript
React
Cool
New
New
New
Tech Stack
Technologies I use to build things
Languages
TypeScript
Java
Python
Rust
Frontend
React
React Native
Next.js
Tailwind CSS
Backend
Node.js
Express
PostgreSQL
Redis
DevOps
Docker
AWS
GitHub Actions
Vercel
Experience
Senior Software Engineer
Reflections Info Systems
Develop applications using modern React and TypeScript.
Integrate Figma designs into production code.
Collaborate with product managers and designers to deliver high-quality features.
Senior Software Engineer
Metalab
Building Task Runners using Node.js and TypeScript.
Created node.js endpoints using Nest.js.
Build, develop and debug devops architecture using AWS CDK.
Lead Software Engineer
Truelogic
Developed UIs for internal tools to manage company resources.
Lead Software Engineer
X-Team
Created apps using React Native.
Created SDKs for a Mobile Gaming platform based in React Native.
Built UIs for education institutions.
Get In Touch
Let’s build something amazing together
Connect
I'm always interested in hearing about new projects and opportunities. Whether you're looking to hire, collaborate, or just want to say hi, feel free to reach out!
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More about me
If you want to take a better look at my professional background, check out my resume.
Let’s connect and discuss how I can help your team.