Hi Jack;
Don't use Noah (currently Noah4 or Noah ES). There is no need for a separate client database system. When you run the fitting software standalone it will use its own client database.
For ReSound hearing aids use ReSound SmartFit 2.1 + (Aventa 3 for Legacy models).
Also; the DIY School Hearing Aids (v2.2) access portals are at your finger tips via 24/7 cloud storage access.