Hi Sjors, Sjors Provoost writes: > $ HOSTS='x86_64-apple-darwin arm64-apple-darwin' ./contrib/guix/guix-build || echo -e "\a" Guix doesn't support apple-darwin as a system. I don't know how the bitcoin project does it, but you probably want to report this to them instead. I don't see anything immediately wrong with the log here as well. > guix time-machine: error: You found a bug: the program '/gnu/store/6is1k9037hzkbjgwrc1zs6v5z26i23ly-compute-guix-derivation' > failed to compute the derivation for Guix (version: > "160f78a4d92205df986ed9efcce7d3aac188cb24"; system: "x86_64-linux"; It seems that guix believes it is building on x86_64-linux. I don't know if this is a bug or feature, you'll have to see with the bitcoin project. Best, -- Josselin Poiret