Building digital experiences with passion

"Simplicity is the soul of efficiency." - Austin Freeman

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© 2026 Abel Sintaro. All rights reserved

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Explore what I'm reading, learning, and building.

2Technical Note
2Book Summarie
1Public Repos
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Latest Findings

Recent technical notes and learnings

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Next.js 16 Proxy Patterns

Next.js 16 shifts request delegation from monolithic middleware to granular Proxy Patterns. This note explores how to resolve middleware conflicts and manage edge-compatible rewrites to eliminate "middleware tax" on your routes. We deep dive into secure API tunneling, demonstrating how to obfuscate internal microservices while injecting secrets safely at the Edge. Learn to implement high-performance forwarding with sub-10ms overhead and proper handling of hop-by-hop headers for scalable routing.

Frontend3 min2026-02-16

Scalable RAG Pipelines

Building a solid RAG setup is less about fancy architecture and more about getting the data pipeline right. In this note, I walk through how I structure and seed my Technical Ledger content into Upstash Vector using OpenAI embeddings, why formatting the embedding input matters more than most people think, and how this setup keeps my portfolio AI grounded in real, searchable context.

Architecture2 min2026-02-15

Currently Reading

Books I'm currently summarizing

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The Fundamentals of Machine Learning

Aurélien Géron

Part 1: The Fundamentals of Machine Learning introduces machine learning fundamentals, covering core concepts, workflows, and essential techniques for building and evaluating effective ML models.

2/9 chapters22%

Currently Working On

Latest activity on my public projects

aws-serverless-dotnet-ddd-template

🧱 .NET 8 AWS Serverless template with Domain-Driven Design, SAM, Lambda, and DynamoDB support.

C#Updated 8mo ago