I'm 13 and I built a free calorie tracker. It's live, and here's everything that broke.
Every calorie app I tried wanted my email and a card before it showed me anything. So I built one that doesn't. I don't write code by hand. I descri…
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Building an iOS Moderation Layer with Apple Foundation Models framework and Firebase
By Robin Winters · First published April 2, 2026 · Republished October 2, 2026 Original LinkedIn edition · Readable HTML edition · Robin’s portfolio…
Building Role-Based Authentication with Firebase in a React + Vite SaaS App
Authentication looked straightforward when all I needed was a way for users to sign in. It became more interesting while I was building Loomwing, a…
How I Built Maniesta Campus OS: A Multi-Tenant Student Management SaaS with React and Firebase
Educational institutions run on spreadsheets. Student records in one file, attendance in another, grades somewhere else, and course schedules — usua…
Firebase AI Logic in Angular: Client-Side Gemini Without a Custom Backend
Since I last wrote Building AI-powered e-commerce applications using Angular & Firebase AI Logic (formerly Vertex AI in Firebase) in 2025, so mu…
I tried to add a simple hit counter to my app and ended up learning why "simple" free APIs quietly fail on mobile
Social proof is good when you have a new app. I wanted people to know that others were using the app. I literally asked Claude for a 90s style websi…
How Attackers Abuse Firebase Misconfigurations in Production Apps
Firebase configuration embedded inside a mobile application is not the actual security boundary. The real risk begins when production services treat…
What It Actually Takes to Run a Cross-Border Marketplace: Six Years of Shpper
Shpper is a cross-border personal-shopping marketplace. A buyer wants something they cannot get where they live. A traveller is already flying that…
How I Run 114 Posts, 98 Tools and 32 Games on Firebase Blaze for $0 a Month
Firebase's Blaze plan has a reputation problem. People hear "pay as you go", picture the horror stories — the recursive Cloud Function that wrote ba…
Beyond the Demo: Architecting a Security-First AI Journal with Gemini
Most "AI-powered" side projects follow the same arc: a slick demo, a hardcoded API key, one shared database, zero auth boundaries — and it falls apa…
Designing a shared daily trivia set in Flutter (without an account wall)
I shipped a small trivia app called Trivia Quest . The product bet is boring on purpose: ten questions, same set for everyone in your language today…
ReClaim — Scalable, Campus-Centric Property Recovery via High-Dimensional Visual Search
Lost-and-found systems on campuses are difficult to scale. Lost items are usually described with vague text, while found items often sit in administ…
I Built Software for Families Who Share a Holiday Home (So WhatsApp Stops Running the Place)
Sharing a holiday home with family or friends is great until the admin starts. Who’s in next weekend? Did someone already claim Easter? Who was mean…
From Learning to Implementation: My Journey with Firebase Analytics & GA4
Over the past few weeks, I've been focused on deepening my understanding of mobile analytics—not just by completing a course, but by putting those c…
Firebase Analytics in React Native — Complete Implementation Guide
Analytics is one of the most valuable tools you can add to a mobile application. While building features is important, understanding how users inter…
I Didn't Plan to Build an Offline-First Attendance System. Firestore Forced Me To.
How accidentally exhausting Firestore's free-tier limit transformed a rushed MVP into a more resilient anti-proxy attendance system. Introduction Wh…
Treating Firestore as a public cache
Using Firestore as "the app's primary database" is easy at first. Writes and reads complete in one place, and onSnapshot gives you realtime push for…
InsForge vs Firebase: AI-Native Postgres Alternative
Originally published on the InsForge blog , written by Hang Huang (CEO & Co-Founder). Reposted here with permission. Firebase and InsForge both…
PanelControl: a 65-file business app, in vanilla JavaScript with no framework
PanelControl is an internal business app I designed and maintain solo for an official myPOS reseller: sales, onboarding, shipping, staff shifts, HR,…
I Spent the Past Few Weeks Building a Cinema App with React & Firebase 🎬
Like many developers, I started this project with a simple idea: "What if there was a place that made discovering films feel intentional again?" Tha…
A plaintext Firebase password authenticated anyone who visited the site — here's how I fixed it without disconnecting anyone
While doing a routine hardening pass on an internal Firebase panel — codename PanelControl , a management tool used daily by multiple operators with…
Supabase vs Firebase
Both Supabase and Firebase promise the same thing: a backend you don't have to build, with auth, a database, storage, and real-time out of the box.…
Streaming Real-Time AI Telemetry with Firebase Genkit and Angular Signals
We’ve all been there. You click a button in a modern web app, and you’re immediately greeted by a generic loading spinner. You sit there, staring at…
PWA with React + Leaflet: lessons from a 31-city map app
Notes from shipping a real-world PWA in Korea: Vite SSG is worth it. SPAs lose Korean SEO because Naver's crawler doesn't fully render JS. Leaflet &…
Who's Online on the Site, Without Tidio: Live Presence and Visitor History with Firebase
A client wanted to know who was on their site and on which page, the way Tidio's widget showed them — but without paying for a Tidio subscription, o…
Flutter Firebase Remote Config: Control Your App Without Releasing Again
There's a moment every developer hits. You ship an app and then immediately realize : "I should hide this feature" "This API needs to change" "We ne…
Firebase Security Rules deserve better IDE support
I have been writing Cloud Firestore Security Rules for years, and I usually edit them in the same place where I do the rest of my work: Android Stud…
Dynamic file catalog with Firebase RTDB + Storage (and how I fixed a Service Worker cache bug)
The Utility section of my internal PWA had a problem: the file catalog was hardcoded in the HTML. Every time a file was added or removed, it require…
The Complete Guide to Firebase Security Rules: Why They Matter and how to Write Them
When building modern web and mobile applications, backend security is often the most stressful piece of the puzzle. Traditional architectures requir…
Custom e-commerce on Firebase: catalog, atomic orders and admin panel
How I built a fully custom e-commerce from scratch using Firebase Realtime Database and Netlify — no off-the-shelf platforms: per-product pricing va…