Tools that do not exist? What could you use to make your job easier?

Hello. I am a software dev and my current contract has had the hours seriously cut. I have been considering starting an open source project with my newly free time. I have heard repeated complaints about the tools cybersecurity professionals use. As I do not have any (currently) worthwhile ideas I figured I'd ask around for ideas.

What kind of tools could you use that does not currently exist?

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