Manne is the founder of GROW 365, a company that provides climate-smart agriculture solutions with a primary focus on hydroponics. Its services include hydroponic system design, installation supply and maintenance, and consulting. She is also passionate about youth empowerment and development, and she encourages Batswana youth to pursue hydroponic farming through her free youth business consultancy program, which assists them with business plan development as well as grant applications.

Manne has a bachelor's degree in social sciences, specializing in economics and public administration. She is passionate about developing and promoting climate-smart agriculture solutions that can help Botswana achieve food self-sufficiency while also reducing poverty an unemployment. sufficiency while also reducing poverty and unemployment. Manne intends to be fully active in educating and changing Batswana's mindset about climate smart agriculture and how it can mitigate the effects of climate change, to be involved in climate smart agriculture policymaking, and to become an expert in climate change and climate smart agriculture issues after completing the Mandela Washington Fellowship.