Where a writer's QR code earns its place
Writers hand out fewer things than designers or musicians, which makes the few printed surfaces count: a card at a conference, an author page in a self-published book, a printed newsletter, a slide at the end of a workshop. In all of them the ask is the same — read more of this later — and a code is the only way to make "later" actually happen.
Encode your profile, not a story. Stories are the thing people arrive for, but a profile code keeps working as you publish, and it shows the range of what you write rather than the one piece that happened to be current when you printed.
Keep the styling plain. Typographic contexts suit a simple black code with square or lightly rounded modules; heavy gradients fight with body text and add nothing to the scan.
Everything happens in your browser. The QR encoder is built into this page, so your username is never sent to a server, nothing is logged, and there's no daily limit. The code is static — the link lives in the pattern itself, with no redirect service in the middle that can expire, start charging or go down.