wtf is xcx_showqrcode?

Xcx_ShowQrcode is a simple add-on for WeChat mini-programs that displays a QR code image so users can long-press it to scan and add someone's WeChat contact. Think of it as a digital business card screen inside a mini-program, you pass in an image URL and optionally a title and description, and it renders the code for people to scan. The way it works is straightforward. You generate a mini-program code in the WeChat admin backend that points to a specific page path, appending your QR code image URL, a title, and a short description as parameters. When a user opens that page inside the mini-program, they see the image and can long-press to recognize and add the WeChat contact. The title and description fields are optional, so you can keep it minimal or add context around the code. The README also covers how to build a "plaintext URL Scheme," which is essentially a special link that can open a specific mini-program page from outside WeChat, for example, from a regular web page or a text message. You assemble the link by combining your app ID, the target page path, any query parameters, and a version flag indicating whether you want the production, trial, or development version of the mini-program. This lets you direct people straight to the QR code page from external sources. This tool would be useful for anyone running a WeChat mini-program who needs a lightweight way to let users add a contact. A sales rep could share their mini-program link with prospects who then scan the rep's personal WeChat code. A small business could use it for customer service. A community organizer could let members scan into a group chat. It is a small, focused utility rather than a full-featured app, it does one thing and keeps it simple. The project also links to a companion page that loads the image through a webview restricted to whitelisted domains, offering a more secure alternative if domain control matters to you.