Her aim was most likely for them to be self sufficient, free people with full legal rights — as the white citizens. She sought to create an agricultural community not built from a slave based economy.
She was an educated, multi-lingual woman raised in Europe so visiting the United States and witnessing black people in servitude and unfair conditions was probably very shocking. Her idea of Nashoba was probably quite Utopian for that era.
The commune lasted roughly three years and then she paid passage for the residents to Haiti where they were greeted by then president Jean Pierre Boyer and her life long friend General Lafayette