diff --git a/.gitignore b/.gitignore
index 3d70092..cd2a51e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
-example
-example-csv
+.venv
+*.egg-info
+__pycache__
+example
\ No newline at end of file
diff --git a/BudaportaFvmConvert/__init__.py b/BudaportaFvmConvert/__init__.py
new file mode 100644
index 0000000..77407f5
--- /dev/null
+++ b/BudaportaFvmConvert/__init__.py
@@ -0,0 +1,65 @@
+# import xml.etree.ElementTree as ET
+# import xmlformatter
+import argparse
+from importlib.metadata import metadata
+from pathlib import Path
+import csv
+
+REQUIRED_CSV_COLUMNS = ['Notes', 'Meter n°', 'Reading', 'Reading data']
+
+
+METADATA = metadata("BudaportaFvmConvert")
+__version__ = METADATA["Version"]
+
+def run():
+    parser = argparse.ArgumentParser(
+        prog=METADATA["Name"],
+        description=METADATA["Summary"],
+    )
+
+    parser.add_argument("-v", "--version",
+                        action="version",
+                        version=f'{METADATA["Name"]} {METADATA["Version"]}'
+                        )
+
+    parser.add_argument("source",
+                    type=Path,
+                    help="Path to a csv file or a folder",
+                    nargs="+"
+                    )
+
+    args = parser.parse_args()
+
+    csvpaths = []
+
+    for path in args.source:
+        if path.is_dir():
+            csvpaths.extend(get_csv_paths(path))
+        elif path.suffix == ".csv":
+                csvpaths.append(path)
+
+    for csvpath in csvpaths:
+        CsvFile(csvpath)
+        
+            
+        
+def get_csv_paths(dp: Path):
+    paths = []
+    if dp.is_dir():
+        for p in dp.iterdir():
+            if p.suffix == ".csv":
+                paths.append(p)
+    return paths
+
+
+class CsvFile:
+    def __init__(self, filepath: Path) -> None:
+        with open(filepath, newline='') as csvfile:
+            incsv = csv.reader(csvfile, delimiter=';')
+            # csvArrs.append([])
+            # for row in incsv:
+            #     csvArrs[0].append(row)
+
+class CsvRow:
+    def __init__(self, ) -> None:
+        pass
\ No newline at end of file
diff --git a/BudaportaFvmConvert/__main__.py b/BudaportaFvmConvert/__main__.py
new file mode 100644
index 0000000..f021bb4
--- /dev/null
+++ b/BudaportaFvmConvert/__main__.py
@@ -0,0 +1,4 @@
+from BudaportaFvmConvert import run
+
+if __name__ == "__main__":
+    run()
\ No newline at end of file
diff --git a/README.md b/README.md
index 027f68f..2ba6014 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,16 @@
 
 Vízműveknek megfelelő xml konvertálása leolvasó programból kijövő csv fájlból.
 
+## Telepítés
+
+### Python-venv virtuális környezetben
+
+```shell
+python -m venv .venv
+. ./.venv/bin/activate
+pip install -e .
+```
+
 ## Adatok megfeleltetése
 
 | Fix érték | csv          | xml           |
@@ -26,9 +36,10 @@ Egy xml fájl neve hossza legfeljebb 40 karakter lehet!
 A file nevében ne legyen ékezetes karakter.
 Egy sor sem lehet 50 karakternél hosszabb!
 
+## Példa
 
-## Telepítés
+Szerveren itt, linux útvonal:
 
-```shell
-pip install -r requirements.txt
+```
+smb://bdc1.boffice.local/porta/Társasházkezelés/DOKUMENTUMTÁR/_VÍZ_ELSZÁMOLÁS_/ZSOLT%20UDVAR/Gépi%20kiolvasás%202020.12.03.tól/
 ```
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..49a40dc
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,33 @@
+[project]
+name = "BudaportaFvmConvert"
+version = "2.0.0"
+description = "Convert meter readings from CSV to XML"
+readme = "README.md"
+requires-python = ">=3.8"
+license = {file = "LICENSE"}
+authors = [
+  {name = "infeeeee", email = "gyetpet@mailbox.org"}
+]
+maintainers = [
+  {name = "infeeeee", email = "gyetpet@mailbox.org"}
+]
+classifiers = [
+  "Development Status :: 3 - Alpha",
+  "Programming Language :: Python",
+]
+
+dependencies = [
+  "xmlformatter"
+  ]
+
+[project.urls]
+homepage = "https://git.gyetvaipeter.hu/infeeeee/BudaportaFvmConvert"
+documentation = "https://git.gyetvaipeter.hu/infeeeee/BudaportaFvmConvert"
+repository = "https://git.gyetvaipeter.hu/infeeeee/BudaportaFvmConvert"
+changelog = "https://git.gyetvaipeter.hu/infeeeee/BudaportaFvmConvert"
+
+[project.scripts]
+BudaportaFvmConvert = "BudaportaFvmConvert:run"
+
+[build-system]
+requires = ["setuptools", "wheel"]
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 2263b12..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1 +0,0 @@
-xmlformatter
\ No newline at end of file