Dart Sealed Classes Guide — Type-Safe State Management with Pattern Matching
Dart Sealed Classes Guide — Type-Safe State Management with Pattern Matching Dart 3's sealed classes are the evolution of enums. They restrict subtypi…
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Supabase Database Functions Guide — Serverless Logic with RPC and PL/pgSQL
Supabase Database Functions Guide — Serverless Logic with RPC and PL/pgSQL Supabase Database Functions let you move complex business logic into Postgr…
Flutter Local Storage Guide — SharedPreferences vs Hive vs SQLite
Flutter Local Storage Guide — SharedPreferences vs Hive vs SQLite Choosing the right local storage solution in Flutter directly impacts performance an…
Product Hunt Launch Complete Guide — Indie Dev Strategy for Day-1 Top 10
Product Hunt Launch Complete Guide — Indie Dev Strategy for Day-1 Top 10 Product Hunt is the go-to community for discovering new products. With the ri…
Indie Dev ASO Complete Guide — Climbing App Store Rankings with Optimization
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Flutter GoRouter Advanced — Nested Navigation, Auth Guards, and Deep Links
Flutter GoRouter Advanced — Nested Navigation, Auth Guards, and Deep Links Practical GoRouter patterns beyond the basics. Nested Navigation with Shell…
Dart 3 New Features — Sealed Classes, Pattern Matching, and Records
Dart 3 New Features — Sealed Classes, Pattern Matching, and Records Dart 3 changed how we write Dart. Master the three flagship features with real exa…
Flutter State Management Compared: Provider vs Riverpod vs Bloc
Flutter State Management Compared: Provider vs Riverpod vs Bloc Stop guessing which one to use. Here are three real implementations and a clear decisi…
Flutter Testing Guide: Unit, Widget, and Integration — When to Use Each
Flutter Testing Guide: Unit, Widget, and Integration — When to Use Each Flutter gives you three test types. Knowing which to reach for—and when—is wha…
Why I Left Notion and Built My Own App with Flutter + Supabase
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Add Loading Indicator for Flutter Web
You’ve created your Flutter web app, but it takes a moment to render in the browser—and that gives your users the impression that your app isn’t worki…
From Figma to Production in Six Weeks: The Design-to-Code Pipeline We Use to Ship Flutter Apps
Every Flutter team has the same broken ritual. The designer finishes a beautiful Figma file. The developer opens it, stares at a spacing value of "14.…
Building an MS Project-Style Gantt Chart in Flutter Web — CustomPaint with Synchronized Scrolling
Building an MS Project-Style Gantt Chart in Flutter Web The Goal Visualize WBS (Work Breakdown Structure) progress with a synchronized task list on th…
Deploying Flutter Web to Firebase Hosting with GitHub Actions CI/CD
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Claude Schedule Auto-Generated Flutter Pages That Failed CI — Quality Gates for AI-Generated Code
Claude Schedule Auto-Generated Flutter Pages That Failed CI Setup: Claude Schedule Handles Customer Support Every hour, a Claude Code Schedule job rea…
cancel-in-progress:true Silently Dropped Our Deploys — GitHub Actions Concurrency Gotcha
cancel-in-progress:true Silently Dropped Our Deploys The Symptom With multiple Claude Code instances pushing in parallel (VSCode, PowerShell, Windows)…
7 Principles for Safe, Fast AI Feature Development — Distilled from Real Production Incidents
7 Principles for Safe, Fast AI Feature Development Why Principles? AI dev tools accelerate building. They also accelerate invisible failures : API key…
Adding Search UI to a Flutter Notes List — SearchBar + Supabase Full-Text Search
Adding Search UI to a Flutter Notes List The Problem: Notes Become Unsearchable Past 50 Once a note list exceeds 50 items, scrolling to find something…
Using Groq llama-3.3-70b for Tag Suggestions — Low-Latency AI Routing Patterns
Using Groq llama-3.3-70b for Tag Suggestions Why Groq? Tag suggestion is a speed-first task: Users expect tag candidates to appear while they're still…
Flutter CI Broke With 2288 Errors — How dart fix --apply Saved Us
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EcoSort- Smart Waste Sorting App for Earth day
This is a submission for Weekend Challenge: Earth Day Edition What I Built EcoSort is a Flutter mobile app that helps users correctly sort waste items…
Claude + Groq Hybrid LLM — AI University Memory Agent
Claude + Groq Hybrid LLM — AI University Memory Agent After each learning session in AI University, a Memory Agent automatically builds a structured l…
Building a 4-Tier AI Cost Auto-Routing System with Supabase Edge Functions
Building a 4-Tier AI Cost Auto-Routing System with Supabase Edge Functions What I Built I added a provider.chat_auto action to the AI Hub Edge Functio…
Jibun Corp's AI Hub Reaches 35 Providers: Adding SiliconFlow and Novita AI
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I Deleted the Button — Migrating Flutter AI Features from UI-Triggered to Hourly Cron Batch
I Deleted the Button — Migrating Flutter AI Features from UI-Triggered to Hourly Cron Batch Introduction I removed the "Run AI Prediction" button from…
Zero-Config New AI Provider Tabs: DB-Driven Dynamic Tabs in Flutter + Supabase
Zero-Config New AI Provider Tabs: DB-Driven Dynamic Tabs in Flutter + Supabase The Problem 自分株式会社 has an "AI University" feature covering 66+ AI provi…
Automating Technical Blog Publishing: GitHub Actions + Supabase Edge Function Pipeline
Automating Technical Blog Publishing: GitHub Actions + Supabase Edge Function Pipeline The Problem Writing code and writing about it are separate work…
Scaling Supabase Edge Functions Past the 50-Function Cap: Hub-and-Action Architecture
Scaling Supabase Edge Functions Past the 50-Function Cap: Hub-and-Action Architecture The Problem Supabase's free and Pro tiers have a hard cap of 50 …
AI University: 3-File Pattern to Add Any AI Provider + Offline Fallback Content
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SM-2 Spaced Repetition in Deno + Flashcard UI in Flutter Web: Building a Duolingo Competitor
SM-2 Spaced Repetition in Deno + Flashcard UI in Flutter Web What We Built A language learning feature for 自分株式会社 competing with Duolingo and Anki: SM…