I added the ability to download OCR results in TEI/XML format to the app that allows viewing OCR results published in the National Diet Library’s “Next-Generation Digital Library” using an IIIF viewer.
https://static.ldas.jp/ndl-ocr-iiif/
Please also refer to the following article about this app.
In adding this feature, I updated the UI. The results are divided into “Viewer” and “Data.”

For “Viewer,” in addition to the previously provided “Mirador” and “Curation Viewer,” I added “Universal Viewer” and “Image Annotator.” I also added a link to the “Next-Generation Digital Library” and implemented a page called “TEI Viewer” as a simple viewer for TEI/XML files.
For “Data,” three types are provided: “Manifest File,” “Curation List,” and “TEI/XML.”
I hope this can be used according to your needs.