This was trying to resolve a bucket called darko-shuk.<region.amazonaws.com. And NOT the bucket in Nebius. This is because it was not actually taking the ENDPOINT_URL. Let’s learn some AWS Rust SDK.
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A critical design decision is how to extract the file and rank from a square index. In most languages, you’d write file = (sq - 1) % 8 + 1 and rank = (sq - 1) / 8 + 1. But TeX’s \numexpr division rounds instead of truncating: 63/8 gives 8 (rounding 7.875 up), not 7. This was the source of one of the first nasty bugs. The fix: precompute lookup tables at load time using \divide (which truncates) and store results in \csname control sequences:
线买到手，不够长或者太长，都得自己想办法，要么挪电视，要么挪家具。，详情可参考新收录的资料