Preno is a hotel software company that offers cloud solutions for independent hoteliers - offering a PMS, Channel Manager and Booking Engine. Preno is built for hoteliers by hoteliers. Preno is a simple, powerful property management system designed for accommodation providers.

Apache Kafka is a distributed event store and stream-processing platform. It is an open-source system developed by the Apache Software Foundation written in Java and Scala. The project aims to provide a unified, high-throughput, low-latency platform for handling real-time data feeds. Kafka can connect to external systems (for data import/export) via Kafka Connect, and provides the Kafka Streams libraries for stream processing applications.