Sancty is an extension to jquast/blessed for simple editor-like terminal apps
Sancty has two major components, Reader (which follows the ReaderProtocol) and Renderer (which follows the RendererProtocol). As you are free to choose your own communication channel and event loop/threading architecture, these do not work out of the box. For implementations that work out of the box, take a look at ProcessReader and ProcessRenderer, which use standard multiprocessing classes to each run on their own thread. You can also spin up a basic editor by running start_terminal().
If you don't want to customize the run architecture, but do want to customize the Reader and Renderer classes, simply extend them (but be sure to still conform to their respective protocols) and pass the classes as variables to start_terminal().
You can also pass a custom replace_dict, which is a dictionary of all possible \\ commands. By default, the key swill correspond to strings that will be replaced by the value strings, but if the key is an integer, a custom special_slash_fn can also be passed to perform arbitrary transformations of the render array. Note that all negative numbers are reserved for this program.
default_replace_dict = {
"clr": (-1, "Clears all text"),
"help": (-2, "Shows all slash commands"),
}