My research explores novel ways for people to interact with computer systems, with a focus on creating interaction techniques that embrace user variability rather than constrain it. My work spans human-computer interaction, ubiquitous computing, and extended reality (AR/VR), with a strong emphasis on wearable and vision-based input technologies. In addition to interaction design, we apply these technologies to impactful healthcare contexts, including assistive communication and the detection and monitoring of axial spondyloarthritis, a chronic inflammatory condition affecting the spine.