Try to do variables in a different way. No idea if it will work.

hosts

@@ -7,5 +7,5 @@ dell-laptop
 usb
 
 [miner]
-usb amdgpu=true
-x570 eth=nanominer gpu=true amdgpu=true ethminer=true nanominer=true
+usb  driver=[amdgpu] miner=[]
+x570 driver=[amdgpu] miner=[nanominer,test] nanominer_config={"cpu":"xmr","gpu":"eth","gpus":[1,2,3]}

local.yml

@@ -82,19 +82,19 @@
     ### CPU SECTION ###
     # Monero #
     - include: tasks/miner/software/xmr-stak-cpu.yml
-      when: xmr_stak_cpu is defined
+      when: "xmr_stak_cpu" in miner
 
     ### GPU Section ###
     ## Drivers ##
     - include: tasks/miner/drivers/amdgpu.yml
-      when: ansible_distribution == "Ubuntu" and amdgpu is defined
+      when: ansible_distribution == "Ubuntu" and "amdgpu" in driver
 
     # Ethereum #
     - include: tasks/miner/software/ethminer.yml
-      when: ethminer is defined
+      when: "ethminer" in miner
 
     - include: tasks/miner/software/ethminer.yml
-      when: nanominer is defined
+      when: "nanominer" in miner
 
   # Scheduling
   post_tasks:

tasks/miner/cron/ansible.yml

@@ -4,9 +4,9 @@
 - name: Miner | Account Management | Cron | Miner Names
   set_fact:
     miners:
-    - { "name": "xmr_stak_cpu", "enabled": no }
-    - { "name": "ethminer",     "enabled": no }
-    #- { "name": "nanominer",    "enabled": yes }
+    - { "name": "xmr_stak_cpu", "enabled": ("xmr_stak_cpu" in miner) }
+    - { "name": "ethminer",     "enabled": ("ethminer" in miner) }
+    #- { "name": "nanominer",    "enabled": ("nanominer" in miner) }
   
 
 - name: Miner | Account Management | Cron | Stop Jobs

tasks/miner/debug.yml

@@ -5,9 +5,6 @@
   debug:
     var: "{{ item }}"
   loop:
-    - xmr
-    - eth
-    - cpu
-    - gpu
-    - amdgpu
-    - nvidia
+    - driver
+    - miner
+    - nanominer_config

tasks/miner/software/nanominer.yml

@@ -1,2 +1,35 @@
 ---
 # Nanominer from nanopool.org
+
+## Install ##
+
+
+## Settings ##
+
+- name: Miner | Software | nanominer | Mine with CPU (Optional)
+  debug:
+    var: nanominer_config.cpu
+  when: nanominer_config.cpu is defined
+
+- name: Miner | Software | nanominer | Mine with GPU (Optional)
+  debug:
+    var: nanominer_config.gpu
+  when: nanominer_config.gpu is defined
+
+#- name: Miner | Software | nanominer | Mine with GPU (Optional)
+#  blockinfile:
+#    path: "{{ item }}/.bashrc"
+#    block: |
+#      watchdog = true
+#    marker: '# {mark} MANAGED BY ANSIBLE | Aliases'
+#    state: present
+#    create: yes
+#    backup: yes
+#  loop: "{{ nanominer_config.gpu }}"
+#  when: nanominer_config.gpu is defined
+
+- name: Miner | Software | nanominer | Choose GPUS (Optional)
+  debug:
+    var: "{{ item }}"
+  loop: "{{ nanominer_config.gpus }}"
+  when: nanominer_config.gpus is defined