'RPDE' stands for 'Realtime Paged Data Exchange', a specification that outlines how Opportunity (and to some extent Booking) data is to be chunked and sequenced by publishers for consumption by OpenActive data clients.
Repos with the topic
activation: Has no content as such, but serves as a focal point and forum for discussion and issue-raising with regard to the RPDE spec.
rpde-sample-azure: Quick and dirty implementation of RPDE using Azure Functions.
azure-rpde-proxy: An app allowing RPDE clients to self-register, along with a deployment template for Azure services.
rpde-validator: Library supporting validation of RPDE feeds.