Tools that answer one question each.

Tools for people running AI coding agents seriously. Know what your setup costs before you type, and make it safe to walk away from overnight.

For the morning your agent has built the wrong thing. Kits and hands-on help for deciding what to build before anything gets written.

Six calculators for people who make things — what to charge for a 3D print, what a candle costs, how much resin to mix, what to quote for a wedding, cups to grams, and whether an AI model fits on your graphics card.

Describe a business in plain words and get a finished page back. Built for the shops and trades who have a phone number and a Facebook page and nothing of their own.

Add five business days. Skip the holidays. Settle a trade across a long weekend and get the right date back. Call it now, or buy the source and run it yourself with no subscription and nobody to depend on.

Sales-tax and VAT rates at the checkout, and a straight answer on whether reverse-charge applies. It runs and you can call it — there is no way to pay for it yet.

VAT number validation that stays up when the official service doesn't, plus current rates. Same story — it works, but there is nothing to click if you want to pay for it.