Notes on building.
Guides on mobile apps, web platforms and AI products. Cost breakdowns, stack comparisons and how we ship.
How to Build an On-Device AI Mobile App Using Edge Inference
Running AI models directly on phones is no longer experimental. Here is how to actually build an on-device AI mobile app that works offline, protects user privacy, and eliminates per-inference API costs.
How to build · Apr 16, 2026 · 14 min read
How to Build a Digital Twin Platform for Real-Time IoT Data
Digital twins sound futuristic until you realize every manufacturing plant and smart building already has the sensor data. The hard part is building the platform that turns those signals into a living virtual replica.
How to build · Apr 16, 2026 · 15 min read
How to Build a Spec-Driven Development Workflow With AI Tools
Vibe coding is fun until your codebase turns into spaghetti. Here is how spec-driven development gives AI the guardrails it needs to ship production-quality software at 3-5x speed.
How to build · Apr 16, 2026 · 13 min read
Apple Intelligence SDK: Building Apps With On-Device AI in 2026
Apple Intelligence finally gives developers a unified on-device AI stack that actually works. Here is how to build with it, what it costs, and where the guardrails still trip you up.
Technology · Apr 16, 2026 · 15 min read
Function Calling vs. Tool Use vs. MCP: AI Integration Compared
Three patterns dominate how AI models interact with the outside world. Picking the wrong one costs you months. Here is how to choose.
Technology · Apr 16, 2026 · 15 min read
Svix vs Hookdeck vs Convoy: Webhook Infrastructure for SaaS 2026
Roughly 15% of webhook deliveries fail on the first attempt. Svix, Hookdeck, and Convoy each solve that problem differently. Here is how to pick the right webhook infrastructure for your SaaS product.
Technology · Apr 15, 2026 · 14 min read
Stripe Radar vs Sift vs Castle: Fraud Detection for Apps 2026
Online fraud costs businesses over $48 billion annually and is growing 25% year over year. Stripe Radar, Sift, and Castle each take a fundamentally different approach to stopping it. Here is how to pick the right fraud detection platform for your application.
Technology · Apr 15, 2026 · 14 min read
React Native Skia vs Reanimated vs Moti: Mobile Animations 2026
Choosing the right animation library for React Native can make or break your app's user experience. Here is a deep comparison of Skia, Reanimated, and Moti with real benchmarks and practical guidance.
Technology · Apr 15, 2026 · 14 min read
When NOT to Use AI in Your Product: Anti-Hype Guide for 2026
67% of AI features never gain meaningful user adoption. Before you spend six figures on a model nobody asked for, here is the honest guide to when AI is the wrong answer.
AI & strategy · Apr 15, 2026 · 14 min read
AI for Due Diligence: Speeding Up Startup Evaluation in 2026
Traditional VC due diligence takes two to four months of analyst time. AI tools are compressing that to weeks by automating financial model analysis, code quality assessment, market sizing, and customer sentiment review. Here is what works, what does not, and how to prepare your startup for an AI-powered evaluation.
AI & strategy · Apr 15, 2026 · 14 min read
How Much Does It Cost to Rescue and Rebuild a Vibe-Coded MVP?
Your vibe-coded MVP got you to launch, but now it is falling apart under real users. Here is exactly what it costs to fix it, and how to decide between a rescue and a full rebuild.
Cost & planning · Apr 15, 2026 · 14 min read
AI Production Costs: How Much Does It Cost to Run AI Monthly?
Everyone talks about the cost to build AI, but nobody warns you about the monthly bill once it is live. Here is what real companies actually spend to keep AI running in production.
Cost & planning · Apr 15, 2026 · 15 min read