Minority language communities lack access to educational technology that facilitates literacy skill building. The approach currently taken by most educational game app developers privileges widely spoken languages and often requires intensive resource investment. In response, a new game app was designed to provide easily localized, pedagogically appropriate games for literacy skill building. Scalability to multiple minority languages was possible through a programming design based on language packs that could be compiled by local implementation teams without specialized technical skills and without significant resource investment. We describe the scalability issues encountered when localizing the app for the initial ten minority language pilot groups and how a language-neutral app design that relies on language packs to specify language-specific content and parameters can adequately address these issues. When it comes to meeting the demands of growing education technology markets in underserved Indigenous and minority communities, localizing an app initially designed for maximum scalability is more feasible than investing significant resources converting apps custom designed for one language into new languages.