In the News and Views section of Nature, Denis Golež [Department of Theoretical Physics and Department of Complex Matter, Jožef Stefan Institute, and the University of Ljubljana] and Zhiyuan Sun [Harvard University] published an article A compact device sustains a fluid of bosons. Authors describe the discovery of an exotic fluid of particles in a device designed from thin layers of semiconductors. The fluid is composed of bosonic particles, bound pairs of electrons and holes in a semiconductor, called excitons. Although the experiment could not prove quantum coherence and superfluid unambiguously, the work represents a significant step toward stabilizing Bose-Einstein condensate at high temperatures and equilibrium conditions. Authors present their vision of the field based on precise manipulation of materials on the nanoscale to reach coherent quantum states. They finish with propositions for various useful devices which could emerge from such an effort, including excitonic transistors, memory elements and even quantum simulators.