TY - CPAPER KW - Relatedness KW - awareness KW - personalization KW - adaptable systems KW - long-distance relationships KW - in-/output modalities AU - Chantal Butenberg AU - Mar\ Zumaya AU - Marc Hassenzahl AU - Torben Wallbaum AB - Young adults in long-distance relationships often miss the presence of their loved ones. Technologically mediated awareness offers a potential remedy. While Human-Computer Interaction has introduced various concepts to support such connections, these are often limited by predefined input/output modalities and fixed interaction forms. This restricts personalization and can hinder user acceptance. To address these limitations, we propose a concept of a customizable toolbox of “Closeness Atoms”. We studied needs and requirements of young adults in long-distance relationships via an online survey (n=94), literature review (n=53) and semi-structured interviews (n=7). Our findings indicate a wish to share everyday moments, emotions, and activities, but lack personalized ways to express their unique forms of relatedness. Therefore our toolbox concept enables users to combine and configure modalities such as light, sound, and video to create individual relatedness experiences. This approach supports flexible, emotionally meaningful connections tailored to diverse personal and relational needs. BT - Proceedings of the 10th ACM International Symposium on Pervasive Displays CY - New York, NY, USA DO - 10.1145/3797993.3798002 N2 - Young adults in long-distance relationships often miss the presence of their loved ones. Technologically mediated awareness offers a potential remedy. While Human-Computer Interaction has introduced various concepts to support such connections, these are often limited by predefined input/output modalities and fixed interaction forms. This restricts personalization and can hinder user acceptance. To address these limitations, we propose a concept of a customizable toolbox of “Closeness Atoms”. We studied needs and requirements of young adults in long-distance relationships via an online survey (n=94), literature review (n=53) and semi-structured interviews (n=7). Our findings indicate a wish to share everyday moments, emotions, and activities, but lack personalized ways to express their unique forms of relatedness. Therefore our toolbox concept enables users to combine and configure modalities such as light, sound, and video to create individual relatedness experiences. This approach supports flexible, emotionally meaningful connections tailored to diverse personal and relational needs. PB - Association for Computing Machinery PP - New York, NY, USA PY - 2026 SN - 9798400725135 T2 - Proceedings of the 10th ACM International Symposium on Pervasive Displays TI - Closeness Atoms: Towards more Personal Relatedness Technologies UR - https://doi.org/10.1145/3797993.3798002 ER -