...
The Internet Archive BookReader is a candidate to replace the digital collections' custom-built viewer. See https://sciencehistory.atlassian.net/wiki/spaces/HDC/pages/2206203905/OCR+planning+notes#Search-within--Work for a discussion in the context of other candidates.
See also: https://sciencehistory.atlassian.net/wiki/spaces/HDC/pages/edit-v2/2325807105
A working example: the bird book. Note
...