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mmlb

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Use the lessons learned from those before us in less heterogeneous days, aka inspect the binaries you're going to call out to for fitness. Things like "check if grep is gnu or bsd" or "check if sl is sapling or steamlocomotive".

I've done that a bit to deal with macos crippled bash for example.

True, but I imagined fetching every file with wget or equivalent and then just using it locally. Doesn't work anyway because the data is not all there.

virtual machines. For custom kernels, clusters, both, and other reasons. Having more than 1 vm running gets to be a pain with 8gigs or less.