Tutorial Obsidian is "eating" Notion with the plugin DBFolder

If you appreciated Notion and you discover OBsidian here is a plugin giving Obsidian similar functionnalities to the Notion databases
warning: I speak about a novel written by Agatha Christie that has been renamed in 2020 to avoid a term that is no more adequate. The novel was titled in 1939 "Ten Little Niggers" and has been renamed in. 2020 by "And Then There Were None". The exemplar I have is the older version