Spanner
Invoice from the job, get paid before you leave
What it does
Spanner turns a finished job into a paid invoice in about 30 seconds. Add the customer, tap the parts and labour, send by text, email or WhatsApp - with a card payment link attached. Quotes, online bookings and tax handled too. Free for your first 5 invoices.
Create GST invoices, collect Stripe card payments, and get paid faster. Free invoice app for tradies, mechanics, plumbers, and small business owners. Available on iOS and Android.
Create professional invoices in 30 seconds, collect card payments via Stripe, and share by WhatsApp, email, or PDF — all from your phone. No accounting degree required. No bloated software. Just fast invoicing that gets you paid. Create a professional invoice from your phone while still on the job. Send a Stripe payment link — customers pay from their phone. Money hits your account fast. Send a quote with an approval link. Customer taps Approve — convert to invoice in one tap. Rego, make, model, year on every invoice. Vehicle history tracked automatically. AU, US, UK, NZ, CA — correct tax, currency, and terminology for every location. Your unique booking link. Customers book from any device…from spannergo.com
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Commerce · 26d ago · equitybee.com
Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io


- SA
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io


I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 16d ago · simedw.com