Hi everyone,

I run a website called https://calculadoradehoras.io , which provides a clean and mobile-friendly tool for calculating work hours in Spanish. I'm now looking to create a simple WordPress plugin so others can easily embed the calculator into their own sites or forums (possibly even inside wpForo posts).

I’d like to start with something lightweight—maybe using an iframe or a shortcode that loads the calculator tool—and eventually build in localization features.

A few questions I’d love your input on:

• What’s the best way to structure a simple plugin for embedding tools like this?
• Can wpForo posts support plugin shortcodes or embed content from an external tool like mine?
• Has anyone here created similar utility plugins before and could share some best practices?

Any advice or examples would be hugely appreciated!

Thanks,
Jhonn Marie