DEV Community: Dev Namdev

🚨 One filename change. Zero errors. Production broken.

Dev Namdev — Sat, 17 Jan 2026 06:22:42 +0000

🚨 One filename change. Zero errors. Production broken.

Dev Namdev — Sat, 17 Jan 2026 06:16:23 +0000

A small Git detail taught me a production-level lesson the hard way.**

I recently ran into a subtle issue while working with Git on Windows. It looked harmless at first — until it showed up in production.

I had a file named DEV.html.
I pushed it to GitHub and everything worked as expected.

Later, I renamed it locally to dev.html (just a case change) and pushed again.
No errors. No warnings. Everything looked fine.

But in production, links like <a href="dev.html"> started returning 404 – Page Not Found.

After some digging, I realized GitHub still had the file named DEV.html.

🔍 What was happening?
This isn’t a Git bug, but a cross-platform design limitation:

Windows filesystems are case-insensitive
Git on Windows doesn’t detect case-only renames
GitHub runs on Linux, which is case-sensitive

So Git never recorded the rename, and GitHub never received it.

⚠️ Why this matters

In small projects, this is easy to miss.
In larger projects, it can silently break navigation and cause production-only bugs — the classic “works on my machine” problem.

✅ What I learned

Always use lowercase filenames
Use git mv when renaming files
Enforce naming rules with CI or pre-commit hooks

Sharing this in case it helps someone avoid a similar issue.

🚀 I Built a Mobile-First Expense Tracker in Angular + Tailwind — Works 100% Offline

Dev Namdev — Fri, 15 Aug 2025 17:03:09 +0000

The Problem

Like many of us, I kept telling myself “I’ll track my expenses from tomorrow”.
But every time I tried an app, I hit the same problems:

Too many ads
Forced sign-ups
Complex UI that made adding expenses a chore
Internet required for basic features

So… I decided to build my own solution.

Introducing ExpenseWise 🧾

ExpenseWise is a mobile-first expense tracker I built using Angular + Tailwind CSS, with LocalStorage for data persistence.
It’s lightweight, fast, and works entirely offline — your data never leaves your device.

Key Features

📊 Dashboard with Graphs — Toggle between Daily, Monthly, and Yearly expense trends.
🥧 Category-wise Breakdown — See where your money is going with a pie chart.
🗓️ Calendar View — Tap on any date to see expenses for that day.
📝 Quick Add Expense Form — Amount, date, category, payment mode, location, notes, and “Extra Spending” toggle.
💡 Budget Tracking — Set a start and end date, and monitor with a progress bar + daily suggestions.
🎨 Dark/Light Theme Toggle
📥 Import / Export Data — Backup or migrate easily.
🔄 PWA Update Button — Update instantly without reinstalling.

Tech Stack

Tech	Purpose
Angular	Frontend logic
Tailwind CSS	Modern responsive UI
LocalStorage	Persistent data storage
Chart.js	Beautiful graphs & charts

Why LocalStorage?

No backend dependency → zero server costs.
Instant read/write speed.
Privacy-first — no one else can see your data.

Try It Out

📱 Live Demo: https://exwise.vercel.app/
💻 Source Code: https://github.com/devnamdev2003/ExpenseWise
No installation needed — just open in your phone browser, and it works offline after first load.

🖼️ Screenshots

Portfolio

Dev Namdev — Sat, 19 Aug 2023 08:41:14 +0000

Over the past 15 to 20 days, I have invested my creativity and dedication into crafting this portfolio from scratch using HTML, CSS, and JavaScript. My primary goal was to demonstrate my abilities in creating captivating and interactive web experiences while ensuring they are fully responsive across all devices.

🌐 Responsiveness: One of the key features of my portfolio is its responsiveness across various devices and screen sizes. Whether you're browsing on a desktop, tablet, or mobile phone, my portfolio will adapt seamlessly to provide an optimal user experience.

✨ Animation: To add a touch of magic, I've incorporated captivating animations that bring life to my projects and create an enjoyable browsing experience. Each animation is thoughtfully designed to enhance user engagement and showcase the power of modern web technologies.

I take immense pride in writing clean, efficient, and maintainable code that not only delivers a visually appealing experience but also ensures smooth functionality.