Hello,

I've been playing with guix a bit and I must say I really like it. I don't
understand a few things though.

1) How do I tell if a package I have installed had been built locally or
downloaded as a substitute?

2) There are a lot of packages with executable binaries in the bin/
subfolder in /gnu/store. However, if I didn't explicitly install the
package, I don't have it in my profile and can't easily reach the binary
without first looking it up in the store. Do I have to always "install" a
package to be able to use run it easily?

Please, excuse my not-so-clear questions, I still don't fully understand
how things really work in guix.

Cheers,
-- 
Jan Synáček