I built istempmail.com
I built istempmail.com here’s what it does It’s a tool designed to help websites detect and block temporary (disposable) email addresses. Temporary em…
Programming
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(ShowDev) JavaScript Exceptions: What they do right, and what they do wrong
All languages have, so far, reached a certain point in their development: error handling. JavaScript, like most languages, chose try-catch statements.…
Masking PII in Kubernetes: How we solved 3 annoying sidecar edge cases (v2.0.0)
Building a mutating webhook for Kubernetes is easy in tutorials, but brutal in production. You immediately hit the reality of volume permissions, secu…
Zero Internet? No Problem: How I Built Offline P2P Sharing Using QR Codes in Android
This is a great strategy for Dev.to and Hashnode. Articles that solve a specific technical problem—like offline data transfer —perform much better tha…
I built chainscope: reading supply chain attacks across 6 surfaces, one slide at a time
Introduction On 2025-03-14, the GitHub Action tj-actions/changed-files was hijacked. CVE-2025-30066. The blast radius: 23,000 repositories, 15 hours. …
Claude Code keeps forgetting my project. So I built waypath.
Last week I was three sessions deep into refactoring a hybrid retrieval ranker. Two days of decisions: which scoring strategies I'd rejected and why, …
nesdit: Targeted In-Place Edits for JSON, YAML, and TOML with jq-Style Queries
You know what you want to do. You want to set one value in a config file. The problem is finding it — three levels deep in a YAML you didn't write, in…
Hey friends, I’m Ömer, I’m 17 years old, and by learning on my own with limited resources, I built a research platform
Velo link: https://velo-k152.onrender.com First, let me briefly talk about myself. When I was in middle school, I had to drop out due to financial pro…
Farewell to F5: Building a Seamless Writing Workflow with Jekyll LiveReload
As a 20-year Linux veteran, I have zero tolerance for mechanical tasks that break my "flow." When using Jekyll for blogging, many developers fall into…
My wife convinced me to finally ship the app we’ve been using for years
My wife and I have been using a shopping list app I built for ourselves for a few years now. Not because I'm a genius product designer. Not because I …
Fantasty Football feedback
I would like to say first off; I have never played Fantasy football or been on a Fantasy football website. When I designed this application, I did it …
How I Built an AI Document Ingestion Pipeline
Symport is an AI document ingestion pipeline that turns a phone photo of any paper document — receipt, EOB, prescription, utility bill — into structur…
Real-Time Anomaly Detection Engine for a Cloud Storage Platform
I built a Python daemon that watches incoming HTTP traffic in real time, learns what "normal" looks like, and automatically blocks attackers using Lin…
I wanted jq with memory, time ranges, and filters. So I built logdive
Your app is in production. Something broke at 2am. Your options are: grep through a rotated log file, squinting at terminal output. Chain together hal…
How we quantified SaaS Lock-In and LLM Costs
The "Contact Sales" button is a technical debt indicator. Every time a vendor hides their pricing behind a form, they are adding friction to your stac…
Introducing Citai: the RAG engine I built across 6 articles — now free to try
Over the last 6 articles I shared how I built every piece of a production RAG engine: hybrid search, cross-encoder reranking, SSE streaming, multi-ten…
The payments inversion — building a Lightning revenue-share loop where the app pays the user
In the last post I argued that Stripe — and the card network underneath it — can’t serve certain payment shapes, no matter how good the developer expe…
Our Attention Span Is Now Shorter Than a Goldfish's. So I Built a Chrome Extension
Every Site Blocker Uses a Static List. So I Built One That Doesn't. Every site blocker on the Chrome Web Store works the same way: you create a blockl…
I Built a macOS App to Detect Fake Lossless Audio
A WAV file is not always what it claims to be. If you download a track labeled .wav from a music store, you assume it's lossless — uncompressed PCM au…
How I'm running an autonomous Claude Code loop on a real shipped product
type.win is a Balatro-styled typing arcade I built — two games, a leaderboard, live on Cloudflare Workers. The interesting part isn't really the game,…
Show DEV: I refused to pay $40 for a clunky PC sensor panel, so I built my own with React & Electron.
If you’ve built a custom PC recently, you’ve probably looked into putting a 5-inch or 8.8-inch ultra-wide "sensor panel" inside your case. It looks in…
I built 14,000 lines of code before talking to a single user. Here's what I learned.
10 weeks ago I was convinced I was building something nobody else had. The idea: a GitHub App that reads every changed Python function in a PR, infers…
I built a small tool that generates a resume from a public URL.
Making resumes from scratch felt so boring. For making it easy i built EasyResume Maker . This is how it works: You paste: GitHub / portfolio / Public…
How I built a self‑healing package manager
How I Built a Self-Healing Package Manager from Scratch (Rust + AI) The first tool that automatically resolves dependency conflicts by generating adap…
Catching Hackers with Math: How I Built a Self-Healing Server
If you’ve never worked in cybersecurity before, the word "DevSecOps" sounds intimidating. It sounds like you need to be in a dark room wearing a hoodi…
I Built Windows Desktop Apps to Fix My Own Annoying Workflows
I didn’t plan to build an app catalog. I just wanted to fix one annoying problem: my C: drive kept filling up at the worst possible time (usually duri…
Stop merging vulnerable API code — automate PR security gates with Semgrep + Claude AI
Stop merging vulnerable API code — automate PR security gates with Semgrep + Claude AI Every team says "we'll fix it after the merge." They rarely do.…
Building a real SSH workspace for iPhone and iPad
SSH from a phone has always felt useful, but rarely comfortable. Most server work happens from a laptop. But sometimes you are away and still need to …
I Built a QR Code Scanner That Doesn't Phone Home — No Ads, No Account, No Internet Permission
QR codes are everywhere — restaurant menus, Wi-Fi labels, package tracking, payment kiosks, business cards. So is the temptation to install whatever Q…
Aximo - offline-first STT API
Finally got Aximo running publicly on Hugging Face Spaces — local CPU speech-to-text API with Swagger microphone recording, powered by Parakeet v3. De…