Kazuhiro Kosaka is an engineer at CyberAgent, Inc. who has worked there since 2009. He introduces Quartz Composer, a node-based visual programming language in macOS for processing and rendering graphical data. Quartz Composer allows creating visualizations and its community is shrinking, though it can be used for data visualization with limitations around network features requiring writing custom parsers. Alternatives mentioned include Unity and Amazon Lumberyard.