Maybe a dumb question, but are they running M1 with the ARM version of Docker & Ruby? I imagine it’s probably difficult to accidentally get the AMD64 version, but I didn’t see that detail in the benchmark
Uh, why? All projects I saw in the early days of M1 (first some script with a modded version, then UTM) were using Qemu to demonstrate the power of Virtualization.Framework (with near native performance). What is Docker doing wrong?