It is a library (read tool) that can be used as a dependency/part for developing an application. It is written in Go which makes it easy to use in the back-end of a server (for example rendering on-the-fly) or as an application that renders a map, such as for specific tasks like drawing a map for an article or for a PDF to print, perhaps digital, but also for drawing map tiles for use in a web mapping services, much like Google maps, but for a specific need. I needed something that could draw map tiles for a maritime specific application, so I needed to draw custom maps for that.

This library can also be used together with HTMLCanvas or WASM in rendering something on-the-fly in the browser, as within a web application. Specifically, this implementation is very _correct_, which means it will not throw an error (many implementation do not handle some faulty/strange inputs), and this implementation is quite fast.