About guix mirror build script

[tumashu]

In China , guix  substitute  download  seem to be  tooooooooooooo slow,  nearly 
unuseable.
this week, I have found that  NIX channels has been built China mirror 
successful with the help of
4 files:

1. https://github.com/tuna/tunasync-scripts/blob/master/nix.py
2. https://github.com/tuna/tunasync-scripts/blob/master/nix-channels.py
3. https://github.com/tuna/tunasync-scripts/blob/master/nixos-images.py
4. 
https://github.com/tuna/tunasync-scripts/blob/master/dockerfiles/nix-channels/Dockerfile

guix is very similar nix, so I want to know how to port 4 files to work with 
guix?
is it possible add similar tools to guix?