Edit a brand's models (one per line) and Save — replaces that brand's product list. Changes drive the dropdowns on iOS & web on next load.

Microphones & DI feed the input-list picker. One model per line, optionally with metadata after pipes:
SM58 | dyn | vocal | no  → model | kind | typical use | needs 48V (yes/no).
Kinds: dyn dynamic · cond condenser · rib ribbon · lav lavalier · head headset · wl wireless system · di DI box · pu pickup/clip-on · bnd boundary · shot shotgun. Lines without metadata still work (no 48V auto-set).