Publish a public catalog with OpenCatalogi
OpenCatalogi is the publishing layer for Conduction apps. Where OpenRegister stores your data and OpenConnector fills it from elsewhere, OpenCatalogi turns a register you own into a public, browsable, harvestable catalog: a set of API endpoints that anyone on the internet can read, and a DCAT-AP-NL feed that national portals like data.overheid.nl and data.europa.eu can harvest. It does this without a "publish" button and without copying your data anywhere — publishing is a rule on the data, enforced by OpenRegister, and a catalog is just a filter that says which data belongs in the shop window.
This tutorial takes the Pet Store register you built in the first two parts and makes it public. You scope a catalog to the register, set up the visibility rule, publish nine pets while deliberately keeping one hidden, prove the rule from a logged-out browser, and expose the whole thing as a DCAT-AP-NL feed. No code, no second server, no export.