The questions we get asked most about the moru web and desktop app. Can't find your answer? Ask on Discord.
resourcepacks folder, enable it under Options → Resource Packs, then switch the language to Korean. Overrides format: script and quest translations (kubejs, ftbquests, and similar) are extracted over your modpack instance folder. Each pack page has a step-by-step install guide, and Guides covers launcher-specific instructions.