Slapdash is an application a little like Alfred or LaunchBar, but at least 10 times the size of these applications. Far too greedy. The Electron part alone is already some 200MB in size.
This reminds me of Java - or Visual Basic applications that always needed a kind of runtime engine. Not so good.
An application like Slapdash is likely used by 'heavy users', the kind of persons that have many applications running.
If a third of all my applications were Electron applications, I would easily lose 10TB. Plus the extra overhead in processing power, plus being a crippled macOS application.