[verdict][curated prompt][source: qrtiger.com]
Can I vibecode QR Tiger?
// one session, and a personal version you can actually use
A library call with a UI. Peak "why is this a subscription."
confidence: high
what it is: A library call with a UI
Buildability index · an editorial game
- Price 15 $/month weight: plus 2
- Time one sitting weight: plus 3
- Category qr codes no weight
- Moat execution quality weight: minus 1
- Confidence high weight: plus 1
- What you lose 3 items weight: minus 1
- Site qrtiger.com (si apre in una nuova scheda) no weight
The maths works, but not by much: look at what you lose before you start.
Gioco editoriale: il verdetto dice se un agente può, l’indice se conviene.
The prompt
One session with a coding agent and your version runs.
Build me a QR code generator like QR Tiger, self-hosted. Requirements:
- A single page: enter a URL or text, live-preview the QR code, customize
foreground/background color, corner style, and an optional center logo upload.
Use the qr-code-styling library. Export as PNG or SVG.
- Dynamic QR codes: /r/:slug 302-redirects to a target URL stored in SQLite,
so the destination can be edited later without reprinting the code. CRUD for
these behind basic-auth (/admin, credentials from .env).
- Scan tracking for dynamic codes: log timestamp + user-agent + referer per hit,
show per-code totals and a 30-day count in the admin list.
- Clean minimal UI, mobile-friendly, no accounts, no third-party calls.
- Node, one process, SQLite file storage, deploy notes for a VPS.Curated prompt: written and reviewed by hand for this app. In English on purpose — it is the language coding agents work best in.
What you lose
- hosted dynamic-QR redirects on their domain
- their scan-analytics dashboard
- bulk generation UI
Why people still pay
Free alternatives
Not in the mood to build it? These already exist, they are free or open source, and we checked them one by one.
Rejected (2) — and why
- qr-code-styling (si apre in una nuova scheda) — A JavaScript library with a demo, not a product; last commit was April 2025.
- TEC-IT QR Code Generator (si apre in una nuova scheda) — Free and permanent, but the terms limit the generator and its images to private non-commercial use unless TEC-IT approves.
Who has already built it
Starting from here is still vibecoding: the prompt is for when you want it exactly your way.
- qr-code-styling (opens in a new tab) — the styling library that does the heavy lifting
Do you agree?
The vote balance
Ancora nessun voto: il tuo è il primo.
Nessun voto ancora — il primo pesa.