Hoani has a Bachelor of Science in Zoology and Ecology, and has an active interest in environmental issues, both marine and terrestrial environments.
Hoani is active locally as a committee member for the Ōtākou Community Support Group, Trustee of the Otago Peninsula Trust and Chair of the Te Rauone Coastal Care Group. He is the former chairperson of the Otago Conservation Board and a member of several national species recovery groups (including Yellow Eyed Penguins).
He has been an advocate for long-term strategies when dealing with community infrastructure and is involved in the development of the Dunedin City Council’s Three Waters Strategy, and a member of the Dunedin City Council’s Physical Activity Strategy, Steering Group
Hoani’s whakapapa is to Kāi Tahu, Kāti Mamoe, Waitaha, Rapuwai and Kāti Hāwea.