=== build note ===
the mini has no C compiler and no passwordless sudo (DS1);
binary cross-built on the laptop (Rig B): gcc -O3 -march=<mini ISA> -fopenmp -static
(-march=native on the mini resolves to that same ISA target, so a native build would
 have compiled the identical instruction set. The literal -march= name is a CPU
 generation and is redacted here under strip-uarch-literal; the other two boxes'
 receipts had their own -march=native resolution stanza removed under the same rule.)

=== loadavg before ===
0.06 0.04 0.04 1/304 22103
=== run ===
threads          16
array_elems      100000000
working_set_MiB  2289
reps_scored      9 (first of 10 discarded as warmup)
TRIAD_BEST_GBs   51.12
TRIAD_WORST_GBs  50.85
checksum         35.0
=== loadavg after ===
0.13 0.06 0.04 1/303 22120