diff --git a/.gitignore b/.gitignore
index b694934..8f7b11a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
-.venv
\ No newline at end of file
+.venv
+/**/*.pyc
\ No newline at end of file
diff --git a/.vscode/launch.json b/.vscode/launch.json
index b0cc008..b7d3edf 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -8,7 +8,7 @@
             "name": "Rings",
             "type": "debugpy",
             "request": "launch",
-            "program": "${workspaceFolder}/__init__.py",
+            "module": "fledermaus_formatter",
             "args": ["-i", "data/ringe_short.xlsx", "-o", "ringe_short_out.xlsx", "-t", "ring"],
             "console": "integratedTerminal"
         },
@@ -16,7 +16,7 @@
             "name": "Countings",
             "type": "debugpy",
             "request": "launch",
-            "program": "${workspaceFolder}/__init__.py",
+            "module": "fledermaus_formatter",
             "args": ["-i", "data/zählungen_short.xlsx", "-o", "zählungen_short_out.xlsx", "-t", "counting"],
             "console": "integratedTerminal"
         }
diff --git a/.~lock.ringe_short_out.xlsx# b/.~lock.ringe_short_out.xlsx#
new file mode 100644
index 0000000..a9de537
--- /dev/null
+++ b/.~lock.ringe_short_out.xlsx#
@@ -0,0 +1 @@
+,someone,nixLap,28.03.2026 12:13,file:///home/someone/.config/yolk/eggs/libreoffice/4;
\ No newline at end of file
diff --git a/__pycache__/logger.cpython-312.pyc b/__pycache__/logger.cpython-312.pyc
deleted file mode 100644
index 7267dd0..0000000
Binary files a/__pycache__/logger.cpython-312.pyc and /dev/null differ
diff --git a/data/.~lock.zählungen_short.xlsx# b/data/.~lock.zählungen_short.xlsx#
new file mode 100644
index 0000000..a9de537
--- /dev/null
+++ b/data/.~lock.zählungen_short.xlsx#
@@ -0,0 +1 @@
+,someone,nixLap,28.03.2026 12:13,file:///home/someone/.config/yolk/eggs/libreoffice/4;
\ No newline at end of file
diff --git a/fledermaus_formatter/__main__.py b/fledermaus_formatter/__main__.py
new file mode 100644
index 0000000..b889491
--- /dev/null
+++ b/fledermaus_formatter/__main__.py
@@ -0,0 +1,4 @@
+from fledermaus_formatter.main import main
+
+if __name__ == "__main__":
+    main()
\ No newline at end of file
diff --git a/instructions/__init__.py b/fledermaus_formatter/instructions/__init__.py
similarity index 100%
rename from instructions/__init__.py
rename to fledermaus_formatter/instructions/__init__.py
diff --git a/instructions/countings_formater.py b/fledermaus_formatter/instructions/countings_formater.py
similarity index 100%
rename from instructions/countings_formater.py
rename to fledermaus_formatter/instructions/countings_formater.py
diff --git a/instructions/mappings.py b/fledermaus_formatter/instructions/mappings.py
similarity index 100%
rename from instructions/mappings.py
rename to fledermaus_formatter/instructions/mappings.py
diff --git a/instructions/ring_formater.py b/fledermaus_formatter/instructions/ring_formater.py
similarity index 100%
rename from instructions/ring_formater.py
rename to fledermaus_formatter/instructions/ring_formater.py
diff --git a/logger.py b/fledermaus_formatter/logger.py
similarity index 100%
rename from logger.py
rename to fledermaus_formatter/logger.py
diff --git a/__init__.py b/fledermaus_formatter/main.py
similarity index 91%
rename from __init__.py
rename to fledermaus_formatter/main.py
index 7d477e5..fce2213 100644
--- a/__init__.py
+++ b/fledermaus_formatter/main.py
@@ -1,10 +1,10 @@
 import argparse
 import os
-from logger import logger 
+from fledermaus_formatter.logger import logger 
 
-from table_handler.serializer import TableSerializer
-import instructions.countings_formater as countings_formater
-import instructions.ring_formater as ring_formater
+from fledermaus_formatter.table_handler.serializer import TableSerializer
+import fledermaus_formatter.instructions.countings_formater as countings_formater
+import fledermaus_formatter.instructions.ring_formater as ring_formater
 
 from concurrent.futures import ProcessPoolExecutor, as_completed
 
@@ -97,7 +97,3 @@ def main():
         parser.error("You must provide either input/output files or input-dir/output-dir")
 
     logger.info("Done")
-
-
-if __name__ == "__main__":
-    main()
\ No newline at end of file
diff --git a/table_handler/__init__.py b/fledermaus_formatter/table_handler/__init__.py
similarity index 100%
rename from table_handler/__init__.py
rename to fledermaus_formatter/table_handler/__init__.py
diff --git a/table_handler/commands/copy.py b/fledermaus_formatter/table_handler/commands/copy.py
similarity index 100%
rename from table_handler/commands/copy.py
rename to fledermaus_formatter/table_handler/commands/copy.py
diff --git a/table_handler/commands/find_and_replace.py b/fledermaus_formatter/table_handler/commands/find_and_replace.py
similarity index 100%
rename from table_handler/commands/find_and_replace.py
rename to fledermaus_formatter/table_handler/commands/find_and_replace.py
diff --git a/table_handler/commands/regex_edit_col.py b/fledermaus_formatter/table_handler/commands/regex_edit_col.py
similarity index 100%
rename from table_handler/commands/regex_edit_col.py
rename to fledermaus_formatter/table_handler/commands/regex_edit_col.py
diff --git a/table_handler/commands/regex_group_valuebased_choose.py b/fledermaus_formatter/table_handler/commands/regex_group_valuebased_choose.py
similarity index 100%
rename from table_handler/commands/regex_group_valuebased_choose.py
rename to fledermaus_formatter/table_handler/commands/regex_group_valuebased_choose.py
diff --git a/table_handler/commands/regex_move_to_col.py b/fledermaus_formatter/table_handler/commands/regex_move_to_col.py
similarity index 100%
rename from table_handler/commands/regex_move_to_col.py
rename to fledermaus_formatter/table_handler/commands/regex_move_to_col.py
diff --git a/table_handler/commands/row_color_to_value.py b/fledermaus_formatter/table_handler/commands/row_color_to_value.py
similarity index 100%
rename from table_handler/commands/row_color_to_value.py
rename to fledermaus_formatter/table_handler/commands/row_color_to_value.py
diff --git a/table_handler/conditions/regex_cell.py b/fledermaus_formatter/table_handler/conditions/regex_cell.py
similarity index 100%
rename from table_handler/conditions/regex_cell.py
rename to fledermaus_formatter/table_handler/conditions/regex_cell.py
diff --git a/table_handler/serializer.py b/fledermaus_formatter/table_handler/serializer.py
similarity index 98%
rename from table_handler/serializer.py
rename to fledermaus_formatter/table_handler/serializer.py
index e71c5c8..0ab61dd 100644
--- a/table_handler/serializer.py
+++ b/fledermaus_formatter/table_handler/serializer.py
@@ -3,7 +3,7 @@ from openpyxl import Workbook, load_workbook
 from dataclasses import dataclass
 from pprint import pprint as print
 
-import instructions.mappings as mappings
+import fledermaus_formatter.instructions.mappings as mappings
 
 from .commands.find_and_replace import FindAndReplace
 from .commands.regex_edit_col import RegexEditCol
@@ -11,7 +11,7 @@ from .commands.regex_move_to_col import RegexMoveToCol
 from .commands.copy import Copy
 from .commands.regex_group_valuebased_choose import RegexGroupValuebasedChoose
 from .commands.row_color_to_value import RowColorToCalue
-from logger import logger
+from fledermaus_formatter.logger import logger
 
 from .conditions.regex_cell import RegexCellCondition
 
diff --git a/instructions/__pycache__/__init__.cpython-312.pyc b/instructions/__pycache__/__init__.cpython-312.pyc
deleted file mode 100644
index 122812d..0000000
Binary files a/instructions/__pycache__/__init__.cpython-312.pyc and /dev/null differ
diff --git a/instructions/__pycache__/countings_formater.cpython-312.pyc b/instructions/__pycache__/countings_formater.cpython-312.pyc
deleted file mode 100644
index d053f79..0000000
Binary files a/instructions/__pycache__/countings_formater.cpython-312.pyc and /dev/null differ
diff --git a/instructions/__pycache__/mappings.cpython-312.pyc b/instructions/__pycache__/mappings.cpython-312.pyc
deleted file mode 100644
index 8bfee93..0000000
Binary files a/instructions/__pycache__/mappings.cpython-312.pyc and /dev/null differ
diff --git a/instructions/__pycache__/ring_formater.cpython-312.pyc b/instructions/__pycache__/ring_formater.cpython-312.pyc
deleted file mode 100644
index 9c4d3d5..0000000
Binary files a/instructions/__pycache__/ring_formater.cpython-312.pyc and /dev/null differ
diff --git a/ringe_short_out.xlsx b/ringe_short_out.xlsx
new file mode 100644
index 0000000..2273939
Binary files /dev/null and b/ringe_short_out.xlsx differ
diff --git a/run.sh b/run.sh
index 00e57cb..9e5a094 100755
--- a/run.sh
+++ b/run.sh
@@ -2,25 +2,6 @@
 
 SCRIPT_DIR="$HOME/.config/fledermaus-formatter"
 
-to_absolute_args() {
-  local result=()
-
-  for arg in "$@"; do
-    if [ -e "$arg" ] || [ -d "$arg" ] || [ -f "$arg" ]; then
-      result+=("$(realpath "$arg")")
-    else
-      result+=("$arg")
-    fi
-  done
-
-  printf '%s\n' "${result[@]}"
-}
-
-ABS_ARGS=()
-while IFS= read -r line; do
-  ABS_ARGS+=("$line")
-done < <(to_absolute_args "$@")
-
-cd $SCRIPT_DIR
 source $SCRIPT_DIR/.venv/bin/activate
-$SCRIPT_DIR/.venv/bin/python3 __init__.py "${ABS_ARGS[@]}"
\ No newline at end of file
+export PYTHONPATH=$SCRIPT_DIR:$PYTHONPATH
+$SCRIPT_DIR/.venv/bin/python3 -m fledermaus_formatter "${ABS_ARGS[@]}"
\ No newline at end of file
diff --git a/table_handler/__pycache__/__init__.cpython-312.pyc b/table_handler/__pycache__/__init__.cpython-312.pyc
deleted file mode 100644
index a8121bd..0000000
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diff --git a/table_handler/__pycache__/serializer.cpython-312.pyc b/table_handler/__pycache__/serializer.cpython-312.pyc
deleted file mode 100644
index 2008f80..0000000
Binary files a/table_handler/__pycache__/serializer.cpython-312.pyc and /dev/null differ
diff --git a/table_handler/commands/__pycache__/copy.cpython-312.pyc b/table_handler/commands/__pycache__/copy.cpython-312.pyc
deleted file mode 100644
index 2d12a12..0000000
Binary files a/table_handler/commands/__pycache__/copy.cpython-312.pyc and /dev/null differ
diff --git a/table_handler/commands/__pycache__/find_and_replace.cpython-312.pyc b/table_handler/commands/__pycache__/find_and_replace.cpython-312.pyc
deleted file mode 100644
index 246030c..0000000
Binary files a/table_handler/commands/__pycache__/find_and_replace.cpython-312.pyc and /dev/null differ
diff --git a/table_handler/commands/__pycache__/regex_edit_col.cpython-312.pyc b/table_handler/commands/__pycache__/regex_edit_col.cpython-312.pyc
deleted file mode 100644
index b39a6d8..0000000
Binary files a/table_handler/commands/__pycache__/regex_edit_col.cpython-312.pyc and /dev/null differ
diff --git a/table_handler/commands/__pycache__/regex_group_valuebased_choose.cpython-312.pyc b/table_handler/commands/__pycache__/regex_group_valuebased_choose.cpython-312.pyc
deleted file mode 100644
index 9cb2ea2..0000000
Binary files a/table_handler/commands/__pycache__/regex_group_valuebased_choose.cpython-312.pyc and /dev/null differ
diff --git a/table_handler/commands/__pycache__/regex_move_to_col.cpython-312.pyc b/table_handler/commands/__pycache__/regex_move_to_col.cpython-312.pyc
deleted file mode 100644
index cea26d4..0000000
Binary files a/table_handler/commands/__pycache__/regex_move_to_col.cpython-312.pyc and /dev/null differ
diff --git a/table_handler/commands/__pycache__/row_color_to_value.cpython-312.pyc b/table_handler/commands/__pycache__/row_color_to_value.cpython-312.pyc
deleted file mode 100644
index e0f992c..0000000
Binary files a/table_handler/commands/__pycache__/row_color_to_value.cpython-312.pyc and /dev/null differ
diff --git a/table_handler/conditions/__pycache__/regex_cell.cpython-312.pyc b/table_handler/conditions/__pycache__/regex_cell.cpython-312.pyc
deleted file mode 100644
index 72af07a..0000000
Binary files a/table_handler/conditions/__pycache__/regex_cell.cpython-312.pyc and /dev/null differ
diff --git a/zählungen_short_out.xlsx b/zählungen_short_out.xlsx
new file mode 100644
index 0000000..50da9be
Binary files /dev/null and b/zählungen_short_out.xlsx differ