3. Axisarrays.jlPerformant arrays where each dimension can have a named axis with values
5. Fillarrays.jlJulia package for lazily representing matrices filled with a single entry
12. ArrayInterface.jlDesigns for new Base array interface primitives, used widely through scientific machine learning (SciML) and other organizations
15. FFTViews.jlJulia package for fast fourier transforms and periodic views