raw.githubusercontent.com returns 404 for a private repo without a token, so the anonymous iex one-liner could never fetch get.ps1, and even once fetched its git clone of the same private repo would fail. get.ps1 now reads a GitHub PAT from SHOPDB_TOKEN (or GITHUB_TOKEN) and uses it for the clone/fetch; the raw fetch is authenticated by irm -Headers in the one-liner. The token is kept off disk: origin is reset to the clean URL after clone, and the update path fetches by explicit URL rather than a tokenized origin.
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