Notes on building.
Guides on mobile apps, web platforms and AI products. Cost breakdowns, stack comparisons and how we ship.
How Much Does an AI Coworker Platform Cost to Build in 2026?
AI coworkers are not copilots with a rebrand. They delegate, remember, collaborate across teams, and run approval workflows autonomously. Here is what it actually costs to build one from scratch.
Cost & planning · Apr 3, 2026 · 14 min read
How Much Does a PropTech Investment Platform Cost to Build?
A PropTech investment platform like Fundrise or CrowdStreet can cost anywhere from $150K for a Reg CF MVP to $750K+ for a full REIT management system with secondary market liquidity. The difference comes down to compliance complexity, waterfall logic, and how much of the capital stack you automate.
Cost & planning · Apr 3, 2026 · 14 min read
How Much Does Digital Therapeutics App Development Cost 2026?
Digital therapeutics app development costs range from $150,000 for a research prototype to over $2 million for a fully FDA-cleared prescription DTx product. This guide covers what actually drives those numbers, from 510(k) submissions to therapeutic protocol engines to EHR integration.
Cost & planning · Apr 3, 2026 · 14 min read
How to Build a Digital Therapeutics App with FDA Compliance
Building a prescription digital therapeutic means navigating FDA regulatory pathways, designing clinically validated treatment protocols, and integrating with the healthcare systems that prescribe and reimburse your product. Here is how to do it right.
How to build · Apr 3, 2026 · 15 min read
How to Build a 3D Product Configurator for E-Commerce in 2026
3D product configurators increase conversion by 40% and reduce returns by 35%. Here is how to actually build one that performs on mobile and plugs into your commerce stack.
How to build · Apr 3, 2026 · 14 min read
How to Build an AI Tenant Screening and Verification Platform
Fake pay stubs cost landlords thousands per bad tenant. Here is how to build an AI-powered screening platform that catches fraud, automates verification, and stays compliant with Fair Housing and FCRA requirements.
How to build · Apr 2, 2026 · 15 min read
How to Build a Digital Wellness and Screen Time Tracking App
Average screen time hit 7+ hours per day in 2026, and people are finally fed up. Here is how to build a digital wellness app that actually changes behavior instead of just guilt-tripping users.
How to build · Apr 2, 2026 · 15 min read
How to Build a Precision Agriculture App with IoT and AI in 2026
YC just called precision agriculture a generational opportunity, and they are right. Here is how to actually build the IoT and AI stack that delivers 20 to 30% input savings for farmers.
How to build · Apr 2, 2026 · 15 min read
How to Build an AI Agentic App Using MCP and Tool Use in 2026
Forty percent of enterprise apps are expected to feature AI agents by the end of 2026. Here is how to actually build one using MCP, tool calling, and production-grade agentic patterns.
How to build · Apr 2, 2026 · 16 min read
How to Build an EV Fleet Management and Charging App in 2026
EV total cost of ownership just dropped below diesel for most commercial fleets. Here is how to build the software that actually makes electrification work at scale.
How to build · Apr 2, 2026 · 15 min read
tRPC vs Hono RPC vs ts-rest: Choosing Type-Safe APIs in 2026
REST and GraphQL aren't going anywhere, but TypeScript-first API layers are quietly replacing both for teams that want end-to-end type safety without the ceremony. Here's how tRPC, Hono RPC, and ts-rest actually stack up.
Technology · Apr 2, 2026 · 14 min read
React Native for Meta Quest: Building VR Apps with Expo in 2026
React Native now runs on Meta Quest headsets, and that changes the math for every team thinking about VR. Here is how to build spatial apps without learning Unity.
Technology · Apr 2, 2026 · 14 min read