# config/unset Remove a key from the global config registry. ## Syntax
[config/unset "key"]
## Parameters - `"key"` — hierarchical registry key (string or keyword). ## Examples
[config/unset "log/max-lines"]
## Returns Boolean — `true` if the key was present, `false` otherwise. When a key is removed, a change event with `:value nil` is published on the `"config"` pub/sub topic. ## See Also `config/set`, `config/get`, `config/save-overrides`