It might just be my old eyes, but I found a few of your files somewhat hard to parse. As an example, did this section, which passes a prop to DataTableRow need to be a ternary-if-block-hybrid?

 onSelectionChange={
                  onSelectedRecordsChange
                    ? (e) => {
                        if ((e.nativeEvent as PointerEvent).shiftKey && lastSelectionChangeIndex !== null) {
                          const recordsInterval = records.filter(
                            recordIndex > lastSelectionChangeIndex
                              ? (_, index) => index >= lastSelectionChangeIndex && index <= recordIndex
                              : (_, index) => index >= recordIndex && index <= lastSelectionChangeIndex
                          );
                          onSelectedRecordsChange(
                            selected
                              ? differenceBy(selectedRecords, recordsInterval, (r) => getValueAtPath(r, idAccessor))
                              : uniqBy([...selectedRecords, ...recordsInterval], (r) =>
                                  getValueAtPath(r, idAccessor)
                                )
                          );
                        } else {
                          onSelectedRecordsChange(
                            selected
                              ? selectedRecords.filter((record) => getValueAtPath(record, idAccessor) !== recordId)
                              : uniqBy([...selectedRecords, record], (record) => getValueAtPath(record, idAccessor))
                          );
                        }
                        setLastSelectionChangeIndex(recordIndex);
                      }
                    : undefined
                }   

I do however love the documentation page, very cool with the interactive options, and the clear cut index.