for https://github.com/PaulSoderlind/FinancialTheoryMSc/blob/master/Ch03b_MV_NoShortSales.ipynb I find that [**EfficientFrontier.jl**](https://github.com/PharosAbad/EfficientFrontier.jl) is a better choice than the numerical solver `OSQP`. And there is a [User Guides](https://github.com/PharosAbad/EfficientFrontier.jl/wiki/User-Guides) for *EfficientFrontier.jl*
for https://github.com/PaulSoderlind/FinancialTheoryMSc/blob/master/Ch03b_MV_NoShortSales.ipynb
I find that EfficientFrontier.jl is a better choice than the numerical solver
OSQP. And there is a User Guides for EfficientFrontier.jl