From Render to AWS How I Built a Production-Grade Backend with CI/CD for KaizenThe Problem That Started Everything My main project, Kaizen a habit and productivity tracker had its backend running on Render’s free tier. For a while, it worked fine. But there was one critical issuFeb 20 · 5 min readkaizen-production.hashnode.dev
🔥 Building a Bulletproof Streak System — Lessons from 10 IterationsWhile building Kaizen, I thought streak logic would be simple. Turns out, it was the most iterative and learning-heavy part of the app. Here’s the journey, step by step 👇 1️⃣ Initial Streak Logic (Simple but Naive) Streak increased if the user mad...Dec 14, 2025 · 3 min readkaizen-streaks.hashnode.dev
Understanding Hashing: How We Achieve Fast and Reliable Cloud DataManaging billions of data objects distributed across numerous physical machines in cloud computing is a complex challenge. Hashing serves as a crucial algorithm to simplify this process and enhance data retrieval efficiency. Algorithm that converts ...Nov 11, 2025 · 6 min readhashing-sai.hashnode.dev
Rooting the Concepts of TreesRecently, I completed the Tree Data Structure from Striver’s A2Z DSA Series. This wasn’t just a milestone in my DSA journey,it significantly strengthened my understanding of recursion and recursive problem-solving. I chose to start Trees right after ...Jun 25, 2025 · 2 min readsai-dsa.hashnode.dev