#Try This is a package that allow you to try out other Emacs packages, without installing them. If you install a package (using `package-install`) you have to remember to delete this, if you realize you don't need that package. A common way around this is to copy the code into the `*scratch*`-buffer and evaluate the buffer. This extension essentially automates this process, by excepting a URL to a plain-text `.el`-file, downloading the content and evaluate it. Unfortunately, you won't be able to try Try with `M-x try`.