diff --git a/bin/config.py b/bin/config.py
index b479408..5ba67e0 100644
--- a/bin/config.py
+++ b/bin/config.py
@@ -1,10 +1,13 @@
 """Configuration management for bin."""
 
 import json
+import os
 from pathlib import Path
 
-CONFIG_PATH = Path.home() / ".config" / "mytoolkit" / "env.json"
+_MYTOOLKIT_HOME = Path(os.environ.get("MYTOOLKIT_HOME", Path.home() / ".mytoolkit"))
+CONFIG_PATH = _MYTOOLKIT_HOME / "env.json"
 _LEGACY_PATH = Path(__file__).parent / "config.json"
+_LEGACY_CONFIG_DIR = Path.home() / ".config" / "mytoolkit" / "env.json"
 
 
 class Config:
@@ -16,10 +19,14 @@ class Config:
         self._data = self._load()
 
     def _migrate_legacy(self) -> None:
-        """One-shot move of legacy bin/config.json into the user config dir."""
-        if _LEGACY_PATH.exists() and not self._config_path.exists():
-            self._config_path.parent.mkdir(parents=True, exist_ok=True)
+        """One-shot move of legacy configs into the user config dir."""
+        if self._config_path.exists():
+            return
+        self._config_path.parent.mkdir(parents=True, exist_ok=True)
+        if _LEGACY_PATH.exists():
             _LEGACY_PATH.rename(self._config_path)
+        elif _LEGACY_CONFIG_DIR.exists():
+            _LEGACY_CONFIG_DIR.rename(self._config_path)
 
     def _load(self) -> dict:
         if self._config_path.exists():