All field notes.
Practical guides, architecture explanations, and working notes gathered across software engineering, infrastructure, and operations.
PostgreSQL Write-Ahead Logging (WAL): The Diary That Saves Your Data
PostgreSQL WriteAhead Logging (WAL) Every durable database has to answer one uncomfortable question: what happens if the power goes out in the middle of a…
Conventional Commits: Writing Structured Git History
Conventional Commits: Writing Structured Git History Conventional Commits is a specification for writing consistent, machinereadable commit messages. It gi…
Filesystem & Navigation
The Linux Filesystem Tree Linux uses a single unified tree rooted at /. Everything — disks, devices, network shares — is mounted somewhere inside it. pwd —…
Linux Distribution System
What is a Linux Distribution? The Linux kernel is just the core — it manages hardware, memory, and processes. A distribution (distro) bundles the kernel to…
Next.js Portfolio Project – Installation Guide (Production Grade)
This document explains how I set up a productiongrade Next.js portfolio website using modern best practices. It includes each installation question, the ch…
Docker-Compose-Full-Stack
Understanding a ProductionStyle Docker Compose Setup for a Django + Next.js Stack If you've ever wondered how to wire together a fullstack web application…