42 Programming of computer software for others; computer software design for others; installation, maintenance, and updating of computer software for others; software as a service (SaaS) services featuring software for use in connection with buying, selling, sharing, searching, downloading, customizing, integrating and reviewing computer software, videos, images, music and movies; software as a service (SaaS) services featuring software for creating and editing personal avatars; providing a website featuring technology that enables users to access information about software; platform as a service (PAAS) featuring computer software platforms for developing computer software on virtual reality headsets, augmented reality headsets, and mixed reality headsets; providing information relating to computer technology and programming via a web site; development of computer hardware and software; developing customized software for others; development of computer software systems; database development services; development of computer platforms