define stib for mycfg in case it's missing; for easier interaction with promnesia

my/__init__.py

@@ -5,3 +5,8 @@ try:
 except ImportError:
     import warnings
     warnings.warn("mycfg package isn't found! That might result in issues")
+
+    from . import fake_mycfg as mycfg # type: ignore[no-redef]
+    import sys
+    sys.modules['mycfg'] = mycfg
+    del sys

my/fake_mycfg/__init__.py

@@ -0,0 +1,4 @@
+# TODO maybe, reuse mycfg_template here?
+
+class paths:
+    pass