Perhaps only a place name or alternate name. People are called 'Mwani', 'Namwani', or 'Namuane'. Not intelligible with Swahili. Ibo is the prestige dialect. Mocimboa da Praia dialect is less intelligible with others.
Men are more bilingual than women.
Traders and schoolchildren can use Portuguese. Work in progress. South central region, south of Beira in Sofala and Manica Province. Closer to Manyika, and much more divergent from Union Shona. Danda and Ndanda may be the same.