Re: Build and upgrade times for heavier packages on old hardware

[kiasoc5 <kiasoc5@disroot.org>]

Hi Oleander,

On 2/25/24 03:06, Oleander wrote:
> Hi kiasoc5,
> thank you.
> 
> Are substitutes in Guix System disabled by running `# guix-daemon 
> --no-substitutes`? How can I see whether they are enabled or not?

I don't know how to directly check the daemon, but you can see if `guix 
build` would download source derivations or substitute derivations with 
`guix build --dry-run ${some-pkg}`.

If substitutes aren't enabled, it should show several derivations with 
compressed sources (store paths ending with *-src.tar.gz.drv or 
*-src.tar.xz.drv), instead of paths not ending in .drv

Since you're running Guix System, you should configure the 
guix-service-type to not use substitutes, like this I think:

(operating-system
   ;; modify services like in the manual
   (services
     (modify-services %desktop-services
       (guix-service-type config =>
          (guix-configuration
             (inherit config)
             (use-substitutes #f)))