Foundry VTT

From the official Knowledge Base and the community web site, there are two explanations given on how to create a compendium for Foundry VTT, others are often discussed on the Discord server. The first, and most obvious, is to create it manually within a game world, but this has several limitations: it’s slow and time consuming to create and edit once created, and (without some jiggery-pokery) the compendium is bound to that particular world and not easily re-used across several game worlds.