On Tue, Mar 17, 2020 at 03:25:24PM +0100, Vincent Legoll wrote:
> Hello,
> 
> I'm wondering if guix publish (or something else) could act as local
> network substitute cache for foreign arch ?
> 
> I.e. using a x86_64 host as a substitute server for, say, arm64 hosts...
> 
> Would it only serve as a local cache of source downloads ?
> 
> How would I setup that ?
> 
> Thanks

I would go about it by running 'guix build --no-grafts foo
--system=aarch64-linux'. Depending on if your x86_64 box is setup to
build aarch64 binaries or not and if there are substitutes for those
packages or not it'll download substitutes or sources and try to build
it or fail. But in either case your x86_64 machine will serve up the
substitutes it has, which in this case would include at least some
aarch64 packages.

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