Suggested directories for project files not working

[kb]

Clone this repository and unzip the Slack.zip archive into your ~/Library/Script Libraries (If this doesn't work try putting it in ~/Library/Scripting Libraries)

I'm on MacOS Sonoma and I've attempted to put the source in both of the suggested directories but it does not seem to be recognized by Script Editor. When I try...

tell script "Slack"
	set status "lunch"
end tell

I get the following

I've tried rebooting to ensure everything is getting loaded, but its still not finding the script definition from the project. Any suggestions on where to locate the files so they are recognized by Script Editor?