drupflare/drangler - v0.1.0
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    Variable FREE_CEILINGConst

    FREE_CEILING: 3145728 = 3_145_728

    Free-plan Worker size after gzip, and it is MiB rather than MB: 3 * 1024 * 1024.

    Confirmed twice over in drupflare/worker -- by the API's own code: 10027 rejection, and by wrangler's reported figure for bundles measured either side of the boundary.