HostMath is a browser-based Airbnb/short-term rental profit calculator that lets hosts and investors enter 16 live inputs - nightly rate, occupancy, nights available, cleaning fees and costs, platform and management fees, mortgage/rent, taxes, insurance, utilities, maintenance as a percent of revenue, and one-off furnishing/setup costs - and immediately see how each input feeds the formulas. The tool runs locally (no data leaves the page) and publishes all formulas, while a $10 one-time unlock for a single property reveals computed outputs: monthly and annual net cash flow, net margin, gross revenue and operating-cost breakdown, break-even occupancy and nightly rate, payback time on setup, and a 24-month view with setup amortized. Defaults and helpful notes (Airbnb host-only fee vs split-fee, cleaning counted as guest-paid revenue minus turnover cost, fees applied to gross revenue) keep calculations conservative and transparent.
Calculations are explicit: booked nights = available × occupancy; gross revenue = booked nights×rate + cleaning fees; operating costs sum platform, management, maintenance percent of revenue, cleaning, and fixed annual costs; net cash flow = revenue − operating costs. Exclusions include income/sales/tourism taxes, large one-off capital replacements, mortgage interest nuances, and seasonality. Pricing offers a free preview of inputs and formulas, a $10-per-property unlock, and a forthcoming Pro tier ($19/month or $99/year) for multi-property portfolio tracking; payments use Stripe.
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Next.js 16.4 introduces Cache Components, a new default programming model that enhances performance by enabling faster loads and instant client navigation. All new apps will use Cache Components by default, with improvements like reduced memory usage and smaller bundles, and migration tools for existing apps. (nextjs.org)
Yeah Nah is a tool that analyzes Australian job ads, revealing hidden spin and providing honest translations of the role descriptions. It assigns a BS score to quantify how much the ad is full of fluff or clear in its messaging. (yeahnah.lol)
AI data centers are rapidly expanding across the United States, with some operational, under construction, or proposed, while community concerns are actively reported. The initiative aims to track growth, conflicts, and environmental impacts associated with these facilities. (brockovichdatacenter.com)
Tesla has renamed its driver-assistance system to 'Tesla Assisted Driving' in Europe after Germany criticized the 'Full Self-Driving' name as misleading. The change is part of an agreement with German authorities to gain EU-wide approval, with minimal modifications to the system's description. (electrek.co)
Mass Driver is a mini-game that simulates routing and scheduling of mass drivers within the solar system. It is inspired by interactive diagrams and aims to make complex space logistics engaging. (mass-driver.scottyah.com)
Aaron Swartz's personal website aaronsw.com has expired, with the domain registration ending on September 29. His family or estate can still renew it during the grace period, and the site is available in archives. (news.ycombinator.com)
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