Is someone still working on Nautsbuilder at all?
It is currently dead, as far as I know, since Max's beta.
Its got a github linked in the OP I believe, as well as a spreadsheet to edit that data (and update / refresh the HTML page which uses said data as well I believe?).
Not really, if you want the data to actually be update we need the OP to update it, that's why we say which changes we made.