An open-source Olfactory Display to add the sense of smell to the Metaverse

As the Metaverse gains popularity due to its use in vari- ous industries, so does the desire to take advantage of all its potential. While visual and audio technologies already provide access to the Metaverse, there is increasing inter- est in haptic and olfactory technologies, which are less developed and have been studied for a shorter time. Cur- rently, there are limited options for users to experience the olfactory aspect of the Metaverse. This paper introduces an open-source kit that makes it simple to add the sense of smell to the Metaverse. The solution is modular, allow- ing for the simultaneous use of multiple odors and com- patibility with both desktop and wearable applications. The details of the solution, including its technical speci- fications, are outlined to enable potential users to utilize, test, and enhance the project and make it available to the scientific community.