Add cachix and some caches that I own
diff --git a/modules/cachix.nix b/modules/cachix.nix
new file mode 100644
index 0000000..7615ba1
--- /dev/null
+++ b/modules/cachix.nix
@@ -0,0 +1,16 @@
+{ pkgs, ... }: {
+ config.nix.settings = {
+ substituters = [
+ "https://nix-community.cachix.org"
+ "https://collabora.cachix.org"
+ "https://nixfiles.cachix.org"
+ "https://cache.nixos.org"
+ ];
+ trusted-public-keys = [
+ "hydra.nixos.org-1:CNHJZBh9K4tP3EKF6FkkgeVYsS3ohTl+oS0Qa8bezVs="
+ "collabora.cachix.org-1:e5DYzGux57BzidOmwCJ7NJgydrumaTWtVXdswnerMoU="
+ "nixfiles.cachix.org-1:QGVJNd+0aetjzU5l/MXrVg2adcrm9+8eL0HhIft3F+c="
+ ];
+ };
+ home.home.packages = [ pkgs.cachix ];
+}