Hello,
I would like to add a package to guix and send a patch but I'm facing problems following the chapter "22.1 Building from git"

What I've done so far:

git clone https://git.savannah.gnu.org/git/guix.git

git fetch origin keyring:keyring
guix git authenticate 9edb3f66fd807b096b48283debdcddccfea34bad \
  "BBB0 2DDF 2CEA F6A8 0D1D  E643 A2A0 6DF2 A33A 54FA"

guix shell -D guix --pure

./bootstrap

./configure --localstatedir=/var --syscondir=/etc

make

After the make I have the following error.

Error: fontconfig:Didn't find expected font family. Perhaps URW Type 1 fonts need installing?

Then if I run make authenticate as stated in the documentation it fails with the error: guix: command not found.

Have a nice day