Turn a GitHub repository, a docs subfolder of one, or a local directory into a ready-to-upload Google Gemini Gem pack - bundled knowledge files sized to the Gem limits, system instructions written from what the source actually says, and a setup sheet with test prompts. Use this whenever someone wants a Gem (or "custom Gemini", "Gemini expert", "Gemini assistant") that knows a repo, framework, tool, or documentation set - including "make a Gem from this repo", "turn these docs into a Gem", "create a Gem for <project>", "I want Gemini to answer questions about this codebase", or a GitHub URL pasted next to the word Gem. Also use it to refresh an existing Gem's knowledge aft…
