1) Wider Research Context / Theoretical Framework: Navigating the challenges posed by wave scattering in complex systems is crucial for numerous daily applications, spanning wireless communication, sound transmission, environmental sensing and imaging. In the META-INCOME project, we aim to make significant progress in these areas by employing novel inverse design techniques that don’t just optimize individual wavefronts, but many of them in parallel. 2) Hypotheses/Research Questions/Objectives: Our first goal is to demonstrate the possibility of achieving full transparency of scattering media by placing custom-made anti-reflection metastructures in front of them. Specifically, we target the development of large-scale anti-reflection metastructures in the centimeter wavelength range to explore possibilities for enhancing wireless connectivity in indoor environments. Our second objective involves designing electromagnetic reverberant cavities capable of perfectly absorbing multiple radiation modes simultaneously, broadening the applications of coherent perfect absorption. Our third objective is to route the Fisher information to a desired observer in view of sensing and imaging tasks. 3) Approach/Methods: Our study is based on inverse design approaches, integrating concepts from wave physics such as generalized impedance matching, coherent perfect absorption, exceptional points and Fisher information. The employed methods include the development of large-scale anti-reflection metastructures, electromagnetic reverberant cavities, and the enhancement of sensing capabilities through inverse design. 4) Level of Originality / Innovation: The original and innovative aspect of project META-INCOME lies in the fact that our approach goes beyond established wavefront shaping concepts in which individual incoming wavefronts are optimized for specific tasks. Instead, we design meta-structures for which many radiation modes satisfy the desired property (such as transparency or full absorption), simultaneously. Building on an established and successful collaboration between the two involved teams, we will address the stated goals both from a theoretical perspective (covered by the Austrian group) and from the experimental side (covered by the French team). 5) Primary Researchers Involved: Project META-INCOME will be implemented collaboratively, involving Stefan Rotter from TU Wien (Austria), an expert in the theory of complex scattering phenomena, and Matthieu Davy, an expert in microwave experiments in disordered and resonant media. The team already has a proven track-record of collaborating successfully. Through the funding from this grant, the team aims to hire a graduate student and a postdoc.