[en] An important feature of a μ-storage ring ν-source is that it can be extended to the possibility of a future high-energy muon collider. The neutrino source provides a useful physics device that initiates key technologies required for future μ⁺-μ^- Colliders, but with much less demanding parameter requirements. These technologies include high-intensity μ-production, μ-capture, μ-cooling, μ-acceleration and multiturn μ storage rings. μ⁺-μ^- colliders require a similar number of muons, but they require that the muons be cooled to a much smaller phase space and formed into a small number of bunches, and both positive and negative bunches must be simultaneously captured. These differences are discussed, and the extension of the ν-source to μ⁺-μ^- collider specifications is described