Si Rapongan lives in Imourud. He currently serves as Yami representative in the Council of Indigenous Peoples. At age 12, he left his island to study in Taiwan. At age 26, while working at the Taiwan Indigenous Library and Information Center in Taipei, he came to realise the depth of his cultural heritage. Several years later, he returned to his home island to immerse himself in Tau knowledge and practice. In 2020, he built a two-man boat together with his father.