[Explanation] Two commands (:!command :!blocked)

[confluencepoint]

https://github.com/kiinoda/goku/blob/experimental/karabiner.edn#L460

What is the effect of the exclamation mark in front of the variables?
[:!command :!blocked]
What does it do?

[kiinoda]

It negates the statement. What the above block of code says is "with the condition that you're not in the command layer and the blocked variable is not set".