Notes on building.
Guides on mobile apps, web platforms and AI products. Cost breakdowns, stack comparisons and how we ship.
SLA vs SLO vs SLI: Engineering Reliability for SaaS Startups
Most startups confuse SLAs, SLOs, and SLIs or ignore them entirely until a major outage forces the conversation. Here is how to think about each one and when to start caring.
Technology · Jun 3, 2026 · 14 min read
CarPlay vs Android Auto App Development: The Complete Guide 2026
Building apps for CarPlay and Android Auto is nothing like building for phones. The category restrictions, template systems, and distraction guidelines make it a completely different discipline, and most teams underestimate what is involved.
Technology · Jun 3, 2026 · 14 min read
Hybrid Search vs Semantic Search vs Keyword: AI Search Compared
Choosing between keyword search, semantic search, and hybrid search is one of the highest-leverage architecture decisions you will make. Here is a no-nonsense comparison with real performance data, costs, and recommendations by use case.
Technology · Jun 3, 2026 · 15 min read
AI for Marketplace Growth: Solving the Cold Start Problem 2026
Every marketplace faces the same brutal chicken-and-egg problem. AI gives you a practical toolkit to manufacture liquidity, bootstrap trust, and accelerate growth before you have real transaction data.
AI & strategy · Jun 3, 2026 · 14 min read
How to Build an Incident Response Platform for SaaS Teams 2026
Most SaaS teams duct-tape their incident process together with Slack threads and spreadsheets until something breaks badly enough to cost real money. Here is how to build a proper incident response platform before that happens.
How to build · Jun 2, 2026 · 14 min read
How to Build App Clips and Instant Apps for Mobile Growth 2026
App Clips and Instant Apps let users try your product without installing anything. Here is how to build them, trigger them, and convert those users into full app installs.
How to build · Jun 2, 2026 · 14 min read
How to Build Live Activities and Dynamic Island Features in Apps
Live Activities and Dynamic Island are two of the most underused engagement tools on iOS. Here is how to actually build them, from ActivityKit basics to push token updates and cross-platform bridges.
How to build · Jun 2, 2026 · 14 min read
Airbyte vs Fivetran vs dlt: Data Ingestion for Startups 2026
Choosing between Airbyte, Fivetran, and dlt comes down to budget, team size, and how custom your data sources are. Here is what actually matters when you compare them.
Technology · Jun 2, 2026 · 14 min read
Expo Agent vs Claude Code vs Cursor: AI Mobile Dev Tools 2026
Expo Agent, Claude Code, and Cursor each take a different approach to AI-powered mobile development. Here is an honest comparison of what works, what falls short, and how to combine them for the best results.
Technology · Jun 2, 2026 · 15 min read
How Much Does It Cost to Build a Co-Living Platform in 2026?
A co-living platform can run from $45K for a lean MVP to $400K+ for a fully automated property management and community system. The gap comes down to how deeply you automate matching, payments, and the resident experience.
Cost & planning · Jun 1, 2026 · 13 min read
How to Build a Two-Sided Marketplace: Cold Start Playbook 2026
Every marketplace dies the same way: no supply, no demand, no transactions. This playbook gives you the exact cold start strategies that Uber, Airbnb, and DoorDash used to break through, and how to apply them to your platform in 2026.
How to build · Jun 1, 2026 · 15 min read
How to Build a Context Engineering Pipeline for AI Products
Most AI products fail because they feed the model garbage context, not because the model is dumb. Here is how to build a context engineering pipeline that actually works in production.
How to build · Jun 1, 2026 · 15 min read