Totally disagree tbh. Obscurity is about the only form of security worth the name these days.
Don't run on open source software - doesn't matter how obscure it is, the LLMs will know about it.
Don't run on software that other people use - if there is more than one copy of the software accessible, it'll be broken elsewhere and you'll be a victim of drive-by hacking.
Do - run your own software, written by you, which nobody else uses, that is closed source and completely undocumented. Then you might have some chance of avoiding being hacked.
Don't run on open source software - doesn't matter how obscure it is, the LLMs will know about it.
Don't run on software that other people use - if there is more than one copy of the software accessible, it'll be broken elsewhere and you'll be a victim of drive-by hacking.
Do - run your own software, written by you, which nobody else uses, that is closed source and completely undocumented. Then you might have some chance of avoiding being hacked.