Perhaps the blog is using the author's own database software, tinyldap https://www.fefe.de/tinyldap/ https://www.fefe.de/tinyldap/ https://web.archive.org/web

Perhaps the blog is using the author's own database software, tinyldap https://www.fefe.de/tinyldap/ https://www.fefe.de/tinyldap/ https://web.archive.org/web/20251005120013if_/https://www.fefe.de/tinyldap/ https://web.archive.org/web/20251005120013if_/https://www.fe... Hence the comment about not using Postgres