Can I patch arbitrary apps to add Speak Text accessibility to macOS apps that don’t support it?

In many (if not, most) Mac apps that display or edit text, you can select text and have it spoken out loud, via a right-click or the Edit menu: **Note:** I am aware of the Accessibility setting that assigns a keyboard shortcut to speak text… but it doesn't always behave as you'd expect and sometimes reads text from the page that is not highlighted. Some apps that you would expect to have this ability, don't… which is a pretty big accessibility issue for lots of folks (myself included). Is there any way to forcibly get this functionality into uncooperative apps?