Correzione ruoli per configurazioni locali all'utente.

roles/nix-user-cfg/defaults/main.yml

@@ -0,0 +1,4 @@
+---
+additional_user: syntaxerrormmm
+dotfdir: "{{ lookup('ansible.builtin.env', 'HOME') }}/.dotfiles"
+nix_configdir: "{{ lookup('ansible.builtin.env', 'HOME') }}/.config/nix"

roles/nix-user-cfg/tasks/main.yml

@@ -0,0 +1,12 @@
+---
+# Configuring nix.
+
+- name: Create configuration directory
+  ansible.builtin.file:
+    path: "{{ nix_configdir }}"
+    state: directory
+
+- name: Linking configuration
+  ansible.builtin.copy:
+    src: "{{ dotfdir }}/nix/nix.conf"
+    dest: "{{ nix_configdir }}/nix.conf"