How I Built a Bitcoin-Only Digital Store (No Stripe, No PayPal) What happened when I deleted my payment processor and embraced financial sovereignty I still remember the day Stripe froze my account. A client disputed a $200 payment and before I could even respond, my entire balance was locked. Three weeks of emails. Two verification requests. And ultimately, a 30-day hold while they "investigate
Dart's concurrency model is unusual: single-threaded event loop by default, with explicit Isolates for true parallelism. No shared memory, no race conditions, no mutex locks. This guide covers everything from the simple compute() helper to long-lived Isolate workers, structured concurrency patterns, and Stream-based reactive flows. Concept Dart Isolates JavaScript Workers Java Threads Memor
Monetization is where most indie SaaS apps die. Not because the product is bad, but because the pricing is wrong, the freemium tier is too generous, or the upgrade path is invisible. This guide covers the full stack: value-based pricing principles, freemium architecture, Stripe + Supabase implementation, and conversion optimization. The classic mistake: pricing based on features ("get 5 exports pe
Accessibility is not an afterthought — it's a quality signal. For Flutter Web, getting WCAG 2.2 compliance right requires understanding how Flutter's Semantics tree maps to browser accessibility APIs. This guide walks through practical implementation: contrast ratios, keyboard navigation, screen reader support, and automated testing. Flutter Web uses a hybrid rendering approach (CanvasKit or HTML)
"Build it and they will come" is a myth. Indie developers need to engineer growth into the product from day one. This guide covers growth loop design, referral mechanics with real Dart code, UTM attribution, and analytics setup — all things you can ship in a weekend. A funnel is linear and leaky: Ads → Landing page → Sign-up → Paid. When users drop off, growth stops. A growth loop is self-reinforc
Indie App Onboarding That Retains Users — Day 0 to Day 28 Engagement Design Every feature you've built is worthless if users quit in the first three minutes. At Jibun Inc. — a Flutter Web life management app competing with Notion, Evernote, and 19 others — improving onboarding increased Day-7 retention by 15% in a single sprint. This article covers the full onboarding stack: empty states, PageVi
Indie Dev Pricing Strategy — Psychological Pricing, Freemium Design & Annual Plan Conversion Pricing is product design. Indie developers consistently price too low, fail to convert free users, or copy competitors without understanding their own value. This post covers the frameworks that actually move the needle. Three common failure modes: Cost-based thinking — "My server costs $50/month, so I'
You have probably seen a file named “go.sum” in almost every Go project you have worked on. You may have even seen it change every time you run “go mod tidy”. But do you actually know what it does? It is one of those files that works silently in the background, and some developers never stop to think about it. The “go.sum” file is one of those files you never really interact with directly, but it