Examples of hardcoded values included below. - [x] GPIO port ( https://github.com/DudLab/mouse_record/blob/master/mouse/record.py#L63 ) - [ ] Preview window size ( https://github.com/DudLab/mouse_record/blob/master/mouse/preview.py#L26 ) - [ ] Frame rate ( https://github.com/DudLab/mouse_record/blob/master/mouse/picture.py#L42 ) ( https://github.com/DudLab/mouse_record/blob/master/mouse/preview.py#L23 ) ( https://github.com/DudLab/mouse_record/blob/master/mouse/record.py#L65 ) It may be that some or all of these defaults get moved to a config file that exists in the user's home directory.