...
There is also an input box that you can use to install a ruleset from a raw KRL source code URL. In this case, if the ruleset is not already registered with the pico-engine, that will be done first, and then the ruleset will be installed in the pico.
In the next section, "Available Rulesets," there is a list of rulesets which are registered in the pico engine, but not installed in the pico. If it makes sense, you can select one of these and install it into the pico.
...