diff --git a/flake.nix b/flake.nix
index 657bfea..47e4d0d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -75,7 +75,14 @@
                   };
 
                   scripts.caddy_permissions.exec = ''
-                    sudo setcap cap_net_bind_service=+ep ${pkgs.caddy}/bin/caddy
+                    sudo setcap cap_net_bind_service=+ep ${pkgs.caddy}/bin/caddy || exit 1
+                    printf "If Caddy created the CA succesfuly, install it on your OS.\n"
+                    printf "Debian:\n"
+                    printf "  sudo cp .devenv/state/caddy/data/caddy/pki/authorities/local/root.crt /usr/local/share/ca-certificates/root.crt\n"
+                    printf "  sudo update-ca-certificates\n\n"
+                    printf "Archlinux:\n"
+                    printf "  sudo cp .devenv/state/caddy/data/caddy/pki/authorities/local/root.crt /etc/ca-certificates/trust-source/anchors/root.crt\n"
+                    printf "  sudo update-ca-certificates\n"
                   '';
 
                   # scripts.install_wp.exec = ''