Writing
Notes from building software for finance and risk teams, and from building my own products.
10 November 2026
Four ways my subscription scanner was wrong
I tested Billio on my own inbox and on friends' phones. Here is what it got wrong and what I changed.
10 November 2026
Reading your Gmail without uploading it
How Billio finds subscriptions in your receipts, and why the scan runs in your browser and not on a server.