engineering
Computing SHA-256 in the browser without freezing the tab
How we hash multi-gigabyte RAW files in the browser during upload — streaming through Web Crypto, with no main-thread stalls — and why the obvious approach doesn't work.
Patrick Meehan · 5 min read · Oct 29, 2025
backup
What fixity actually means (and why we put it on the homepage)
Fixity is the boring word for the thing that decides whether your archive is real. Here's why we built it into the product instead of leaving it to the storage vendor.
Patrick Meehan · 5 min read · Aug 4, 2025