Notes on building.
Guides on mobile apps, web platforms and AI products. Cost breakdowns, stack comparisons and how we ship.
AI Model Routing: Cut LLM Costs with Smart Orchestration in 2026
Most teams run every prompt through their most expensive model. AI model routing sends easy requests to cheap models and hard requests to premium ones, cutting LLM spend 40-70% without sacrificing quality.
AI & strategy · Mar 9, 2026 · 13 min read
AI Observability: Logging, Tracing, and Debugging LLM Apps in 2026
LLM apps are non-deterministic, expensive, and fail silently. Here is how to build a production observability stack that catches hallucinations, tracks costs, and debugs agents without losing your mind.
AI & strategy · Mar 9, 2026 · 14 min read
How to Hire AI Engineers vs ML Engineers for Your Startup in 2026
AI engineers and ML engineers solve very different problems, yet most startups conflate them and waste six figures on the wrong hire. Here is how to tell them apart, what to pay, and where to find the people who actually ship.
AI & strategy · Mar 9, 2026 · 14 min read
From AI Prototype to Production: Shipping LLM Features in 2026
Most AI prototypes never ship. This playbook walks through the exact stages, systems, and org structure required to move an LLM feature from demo to production.
AI & strategy · Mar 9, 2026 · 15 min read
How Much Does It Cost to Build a Fleet Management App in 2026?
Fleet management app development ranges from $60,000 for a focused MVP to $300,000+ for a full enterprise platform. Here is what actually drives the price and how to spend wisely.
Cost & planning · Mar 9, 2026 · 14 min read
How Much Does It Cost to Build a Legal Tech Platform in 2026?
Legal tech is a $30B+ market, but building a compliant platform with AI contract review, case management, and e-discovery is not cheap. Here is what it actually costs.
Cost & planning · Mar 9, 2026 · 14 min read
How Much Does It Cost to Build a Loyalty and Rewards App in 2026?
Loyalty app development costs range from $30K for a basic digital punch card to $500K+ for an enterprise rewards platform. Here is everything you need to budget accurately.
Cost & planning · Mar 9, 2026 · 14 min read
How to Fine-Tune an LLM for Your Domain: A Practical Guide in 2026
Fine-tuning was supposed to be obsolete after RAG. Then LoRA made it cheap and Llama made it accessible. Now it is back as a serious tool for domain accuracy. Here is how to do it without wasting six figures.
AI & strategy · Mar 8, 2026 · 13 min read
How to Build an AI-Powered Sales Development Rep (SDR) in 2026
AI SDRs like 11x, Artisan, and Clay raised half a billion dollars in 2025, and they are replacing manual outbound at 30% of B2B SaaS companies. Here is exactly how to build one.
How to build · Mar 8, 2026 · 15 min read
How to Build a Notion Alternative with Real-Time Collaboration in 2026
Notion built a $10B company by combining a block editor with flexible databases. Here is exactly how to build your own version that handles real-time collaboration without breaking.
How to build · Mar 8, 2026 · 15 min read
How to Build a Workforce Management App for Deskless Workers in 2026
Deskless workers are 2.7 billion people still stuck managing shifts over group texts. Here is how to build a workforce management platform that actually fixes that problem.
How to build · Mar 8, 2026 · 14 min read
How to Build a Customer Data Platform (CDP) for B2B SaaS in 2026
Segment and mParticle built a $20B category, but founders with warehouse-native stacks and privacy requirements are building their own CDPs. Here is how to architect one that actually scales.
How to build · Mar 8, 2026 · 15 min read