Implement anarchy mode

backend/backend/arbiter.py

@@ -186,3 +186,21 @@ async def _(get_input: InputGetter, set_output: OutputSetter):
             output[choice] = True
 
         set_output(output)
+
+
+@arbiter.mode("anarchy", allow_multitouch=False)
+async def _(get_input: InputGetter, set_output: OutputSetter):
+    while True:
+        await asyncio.sleep(settings.democracy_vote_cycle)
+
+        inputs: list[Input] = await get_input()
+        
+        the_input = random.choice(inputs)
+
+        if not the_input:
+            set_output(EMPTY_INPUT)
+            continue
+
+        output = {button: the_input[button] for button in Button}
+
+        set_output(output)