diff --git a/.gitignore b/.gitignore
index 78fd378..ac5a70f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 **/*.sw*
+**/__pycache__
diff --git a/src/main.py b/src/main.py
index 52da529..4f2331e 100644
--- a/src/main.py
+++ b/src/main.py
@@ -2,9 +2,16 @@ import reader
 import writer
 import bucket
 
+import argparse
+
 def main():
+   ap = argparse.ArgumentParser()
+   ap.add_argument("--stdin", default=False, action="store_true")
+   args = ap.parse_args()
+
    r = reader.Reader(reader.StdinReader())
-   r = reader.Reader(reader.RandomReader())
+   if not args.stdin:
+      r = reader.Reader(reader.RandomReader())
    w = writer.Writer(writer.MultiWriter(
       #writer.StdoutWriter(),
       writer.PyAutoGUIWriter(),
diff --git a/src/writer.py b/src/writer.py
index 6eee525..00a423a 100644
--- a/src/writer.py
+++ b/src/writer.py
@@ -30,8 +30,14 @@ class StdoutWriter:
       print(v)
 
 class PyAutoGUIWriter:
+   translation = {
+      "a": "f24",
+      "b": "f23",
+   }
+
    def __init__(self):
       self.keys_down = set()
+      print(json.dumps(PyAutoGUIWriter.translation, indent="   "))
 
    def write(self, v):
       to_push = set()
@@ -48,10 +54,9 @@ class PyAutoGUIWriter:
 
    # https://pyautogui.readthedocs.io/en/latest/keyboard.html#keyboard-keys
    def translate(self, v):
-      if v == "a":
-         return "f24"
-      elif v == "b":
-         return "f23"
+      result = PyAutoGUIWriter.translation.get(v, None)
+      if result:
+         return result
 
    def push(self, k):
       self.keys_down.add(k)