It can be useful to have an option to buid a bot from code located at a remote URL. This way, it’s possible to separate the editing of the bot code (which can be, for example, on a wiki site), and the actual server running the bot.
A possible syntax is:
:buildurl <url> <start-marker> <end-marker>
where the markers are special text strings that mark to the engine where the actual bot starts (for example, before the start-marker and after the end-marker there may be HTML tags).