Keyboard Maestro is closer to Apple’s Shortcuts than to Quicksilver. Keyboard Maestro is a powerful automation tool that requires no coding, but if you can code, you can incorporate AppleScript, JavaScript and bash into your automation as well.
IMHO, Keyboard Maestro is essential kit for anyone using a Mac.
One of the things I use KM for with Scrivener is when I want to export a screenplay to Final Draft as an FDX file. I have a muli-step process to collect all my document files, duplicate them, merge the duplicate into a single file, then export (NOT compile) the script out into FDX format, open it in Final Draft and enter into Reformat mode to correct any formatting mistakes in the export. With KM, I select my documents in Scivener, and then tap one keyboard shortcut. KM does it all, and even opens the FDX file in Final Draft and activates the reformatting tool.
When I have an idea I need to brainstorm, I tap a keyboard shortcut and KM asks me for a title; I type something and hit Return, and it opens Curio, makes a new page, starts a mind map, sets it up the way I like it, and then adds my title and moves the cursor to the first empty space. All I have to do is start typing.
You can also do simple things with it. If you find yourself doing something repetitive, you can take out five minutes, set up a KM macro to trigger those five steps with one key, and now you’re working five times faster.
I believe you can test drive KM for 30 days for free. I recommend it. Also, it has one of the nicest, most helpful online user communities of any product.