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0. Migration Overview This migration was not a simple frontend switch. It was a full production architecture upgrade, including: Data Layer EC2 local

1. Background In this study note, I documented a complete hands-on learning journey of Amazon ECS with Fargate, focusing on: How ECS actually runs wor

As I gradually moved from “following deployment steps” to actually understanding why modern delivery pipelines are designed the way they are, CI/CD st

Over the past ten days, I’ve been building something that started as a small experiment but ended up becoming one of my favorite side projects: Wisdom

This note summarizes the system design and technical insights from building a banking customer service assistant powered by retrieval-augmented genera

📌 1️⃣ Introduction Proximity Service is a key component in many modern applications: Yelp: Find nearby restaurants and shops Google Places: Return ne

📘 Problem Overview You are given a directed, weighted graph with n nodes (1-indexed), and a list of travel times times, where each element is [u, v,

🧩 Problem Summary You are given an integer array nums where each element represents your maximum jump length at that position. Your goal is to return

🧠 Problem Overview You’re given an integer array nums, where each element represents the maximum jump length from that position. Starting at index 0,