# keymap/scan-overrides
Like `keymap/scan`, but returns only bindings whose value differs from the per-package defaults, plus keys the user added. Powers the keys manager UI.
## Syntax
[keymap/scan-overrides ?app]
## Parameters
- `?app` — (optional) restrict the result to one app.
## Examples
[keymap/scan-overrides "editor"]
[keymap/scan-overrides]
## Returns
Nested map in the same shape as `keymap/scan`, containing only overridden or user-added bindings. `nil` when no runtime is attached.
## See Also
`keymap/scan`, `keymap/save-overrides`, `keymap/reset`