Hi Mr. Wessel, Ghostscript is written by Artifex Software: https://artifex.com/ I believe they run a website here: https://ghostscript.com/ for the main Ghostscript product along with mailing list(s).
This mailing list is for an old GNU copy of Ghostscript back when they went from regular GPL to Aferro GPL around version 9.14 or so. Thanks, Robert Eby
