Notes on building.
Guides on mobile apps, web platforms and AI products. Cost breakdowns, stack comparisons and how we ship.
A2A vs MCP: AI Agent Communication Protocols Explained 2026
A2A handles agent-to-agent communication. MCP handles model-to-tool communication. They solve different problems and complement each other. Here is when to use which.
Technology · Mar 25, 2026 · 14 min read
Grafbase vs Hasura vs PostGraphile: Instant GraphQL in 2026
Instant GraphQL APIs let you ship data-heavy features in minutes instead of weeks. Grafbase deploys at the edge, Hasura auto-generates from PostgreSQL, and PostGraphile generates zero-config APIs. The right choice depends on your performance and customization needs.
Technology · Mar 24, 2026 · 14 min read
Enterprise AI Governance: A Framework for Startup Founders
78% of enterprises require AI governance frameworks from vendors before signing contracts. If you sell AI products to enterprise, governance is not optional. It is a sales enablement requirement that directly affects your close rate.
AI & strategy · Mar 24, 2026 · 15 min read
Selling AI to Enterprise Customers: Startup Playbook for 2026
Enterprise AI sales cycles average 6 to 12 months. Your product might be great, but if you cannot navigate security reviews, pilot programs, and procurement committees, you will never close. Here is the playbook that works.
AI & strategy · Mar 24, 2026 · 15 min read
AI for Talent Marketplaces: Matching and Scoring Algorithms
Keyword matching produces terrible talent marketplace results. AI-powered matching that infers skills, scores culture fit, and ranks candidates fairly is the difference between a useful platform and a glorified job board.
AI & strategy · Mar 24, 2026 · 15 min read
AI Feedback Loops: Continuous Model Improvement for Products
65% of AI products degrade in quality within 6 months of launch. The fix is not better models. It is better feedback loops that collect user signals, trigger retraining, and validate improvements before they reach production.
AI & strategy · Mar 24, 2026 · 15 min read
How Much Does It Cost to Build a Delivery Tracking App in 2026?
Last-mile delivery is a $90B+ market, and every player needs real-time tracking. Here is what it actually costs to build a delivery tracking app from scratch.
Cost & planning · Mar 24, 2026 · 14 min read
How Much Does It Cost to Build an AI Customer Support System?
An AI customer support system is far more than a chatbot. Here is what it actually costs to build one that handles tickets, assists agents, and learns from every interaction.
Cost & planning · Mar 24, 2026 · 14 min read
How Much Does It Cost to Build a Document Management System?
SharePoint and Google Drive work until they do not. Here is what it costs to build a custom document management system with version control, OCR, and compliance workflows.
Cost & planning · Mar 24, 2026 · 14 min read
Claude Agent SDK vs OpenAI Agents SDK vs Google ADK for 2026
All three major AI providers now ship agent SDKs. Here is a production-focused comparison of Claude Agent SDK, OpenAI Agents SDK, and Google ADK for building real applications.
Technology · Mar 24, 2026 · 15 min read
How to Build an AI-Powered Accessibility Tool for Apps in 2026
98% of websites fail WCAG compliance, and manual remediation costs $10K to $50K per site. AI-powered accessibility tools that automate alt text generation, screen reader optimization, and compliance scanning are a billion-dollar opportunity.
How to build · Mar 23, 2026 · 15 min read
How to Build a Student Housing Marketplace App in 2026
Student housing is a $225B+ global market that generic real estate platforms serve poorly. University-specific inventory, roommate matching, and semester-based lease cycles require specialized marketplace architecture.
How to build · Mar 23, 2026 · 14 min read