diff --git a/app/conf/__init__.py b/README.rst
similarity index 100%
rename from app/conf/__init__.py
rename to README.rst
diff --git a/config.json b/config.json
deleted file mode 100755
index 5abcdfc..0000000
--- a/config.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "general" : {
-        "debug": false,
-        "lang": "fr",
-        "db_url": "sqlite:///db.sqlite"
-    },
-    "http": {
-        "root_url": "http://localhost:8100",
-        "host": "0.0.0.0",
-        "port": 8100
-    },
-    "security": {
-        "salt": "BRRJRqXgGpXWrgTidBPcixIThHpDuKc0",
-        "secret": "Uqca5Kc8xuU6THz9"
-    },
-    "rss": {
-        "proto": "http",
-        "file": "comments.xml"
-    }
-}
diff --git a/poetry.lock b/poetry.lock
new file mode 100644
index 0000000..ff03a8b
--- /dev/null
+++ b/poetry.lock
@@ -0,0 +1,549 @@
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+
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+tzlocal = ">=1.2"
+
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+doc = ["sphinx", "sphinx-rtd-theme"]
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+redis = ["redis (>=3.0)"]
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+twisted = ["twisted"]
+zookeeper = ["kazoo"]
+
+[[package]]
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+description = "Atomic file writes."
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+name = "atomicwrites"
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+
+[[package]]
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+name = "attrs"
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+[[package]]
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+name = "certifi"
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+
+[[package]]
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+[[package]]
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+
+[[package]]
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+[package.dependencies]
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+[[package]]
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+[[package]]
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+[[package]]
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+[[package]]
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+[package.extras]
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+    {file = "Werkzeug-0.16.0-py2.py3-none-any.whl", hash = "sha256:e5f4a1f98b52b18a93da705a7458e55afb26f32bff83ff5d19189f92462d65c4"},
+    {file = "Werkzeug-0.16.0.tar.gz", hash = "sha256:7280924747b5733b246fe23972186c6b348f9ae29724135a6dfc1e53cea433e7"},
+]
+zipp = [
+    {file = "zipp-0.6.0-py2.py3-none-any.whl", hash = "sha256:f06903e9f1f43b12d371004b4ac7b06ab39a44adc747266928ae6debfa7b3335"},
+    {file = "zipp-0.6.0.tar.gz", hash = "sha256:3718b1cbcd963c7d4c5511a8240812904164b7f381b647143a89d3b98f9bcd8e"},
+]
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..1a490a6
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,23 @@
+[tool.poetry]
+name = "stacosys"
+version = "1.1.0"
+description = "STAtic COmmenting SYStem"
+authors = ["Yax"]
+
+[tool.poetry.dependencies]
+python = "^3.7"
+apscheduler = "^3.6.3"
+flask = "^1.1.1"
+peewee = "^3.13.1"
+pyrss2gen = "^1.1"
+profig = "^0.5.1"
+markdown = "^3.1.1"
+flask_apscheduler = "^1.11.0"
+requests = "^2.22.0"
+
+[tool.poetry.dev-dependencies]
+pytest = "^5.2"
+
+[build-system]
+requires = ["poetry>=0.12"]
+build-backend = "poetry.masonry.api"
diff --git a/run.sh b/run.sh
index a3b0364..24b53b5 100755
--- a/run.sh
+++ b/run.sh
@@ -1,3 +1,3 @@
 #!/bin/sh
-python app/run.py "$@"
+python stacosys/run.py "$@"
 
diff --git a/stacosys/__init__.py b/stacosys/__init__.py
new file mode 100644
index 0000000..b794fd4
--- /dev/null
+++ b/stacosys/__init__.py
@@ -0,0 +1 @@
+__version__ = '0.1.0'
diff --git a/app/core/__init__.py b/stacosys/conf/__init__.py
similarity index 100%
rename from app/core/__init__.py
rename to stacosys/conf/__init__.py
diff --git a/app/conf/config.py b/stacosys/conf/config.py
similarity index 100%
rename from app/conf/config.py
rename to stacosys/conf/config.py
diff --git a/app/interface/__init__.py b/stacosys/core/__init__.py
similarity index 100%
rename from app/interface/__init__.py
rename to stacosys/core/__init__.py
diff --git a/app/core/cron.py b/stacosys/core/cron.py
similarity index 100%
rename from app/core/cron.py
rename to stacosys/core/cron.py
diff --git a/app/core/database.py b/stacosys/core/database.py
similarity index 100%
rename from app/core/database.py
rename to stacosys/core/database.py
diff --git a/app/core/mailer.py b/stacosys/core/mailer.py
similarity index 100%
rename from app/core/mailer.py
rename to stacosys/core/mailer.py
diff --git a/app/core/rss.py b/stacosys/core/rss.py
similarity index 100%
rename from app/core/rss.py
rename to stacosys/core/rss.py
diff --git a/app/core/templater.py b/stacosys/core/templater.py
similarity index 100%
rename from app/core/templater.py
rename to stacosys/core/templater.py
diff --git a/app/helper/hashing.py b/stacosys/helper/hashing.py
similarity index 100%
rename from app/helper/hashing.py
rename to stacosys/helper/hashing.py
diff --git a/stacosys/interface/__init__.py b/stacosys/interface/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/app/interface/api.py b/stacosys/interface/api.py
similarity index 100%
rename from app/interface/api.py
rename to stacosys/interface/api.py
diff --git a/app/interface/form.py b/stacosys/interface/form.py
similarity index 100%
rename from app/interface/form.py
rename to stacosys/interface/form.py
diff --git a/app/model/comment.py b/stacosys/model/comment.py
similarity index 100%
rename from app/model/comment.py
rename to stacosys/model/comment.py
diff --git a/app/model/site.py b/stacosys/model/site.py
similarity index 100%
rename from app/model/site.py
rename to stacosys/model/site.py
diff --git a/app/run.py b/stacosys/run.py
similarity index 100%
rename from app/run.py
rename to stacosys/run.py
diff --git a/app/templates/en/approve_comment.tpl b/stacosys/templates/en/approve_comment.tpl
similarity index 100%
rename from app/templates/en/approve_comment.tpl
rename to stacosys/templates/en/approve_comment.tpl
diff --git a/app/templates/en/drop_comment.tpl b/stacosys/templates/en/drop_comment.tpl
similarity index 100%
rename from app/templates/en/drop_comment.tpl
rename to stacosys/templates/en/drop_comment.tpl
diff --git a/app/templates/en/new_comment.tpl b/stacosys/templates/en/new_comment.tpl
similarity index 100%
rename from app/templates/en/new_comment.tpl
rename to stacosys/templates/en/new_comment.tpl
diff --git a/app/templates/en/notify_message.tpl b/stacosys/templates/en/notify_message.tpl
similarity index 100%
rename from app/templates/en/notify_message.tpl
rename to stacosys/templates/en/notify_message.tpl
diff --git a/app/templates/en/rss_title_message.tpl b/stacosys/templates/en/rss_title_message.tpl
similarity index 100%
rename from app/templates/en/rss_title_message.tpl
rename to stacosys/templates/en/rss_title_message.tpl
diff --git a/app/templates/fr/approve_comment.tpl b/stacosys/templates/fr/approve_comment.tpl
similarity index 100%
rename from app/templates/fr/approve_comment.tpl
rename to stacosys/templates/fr/approve_comment.tpl
diff --git a/app/templates/fr/drop_comment.tpl b/stacosys/templates/fr/drop_comment.tpl
similarity index 100%
rename from app/templates/fr/drop_comment.tpl
rename to stacosys/templates/fr/drop_comment.tpl
diff --git a/app/templates/fr/new_comment.tpl b/stacosys/templates/fr/new_comment.tpl
similarity index 100%
rename from app/templates/fr/new_comment.tpl
rename to stacosys/templates/fr/new_comment.tpl
diff --git a/app/templates/fr/notify_message.tpl b/stacosys/templates/fr/notify_message.tpl
similarity index 100%
rename from app/templates/fr/notify_message.tpl
rename to stacosys/templates/fr/notify_message.tpl
diff --git a/app/templates/fr/rss_title_message.tpl b/stacosys/templates/fr/rss_title_message.tpl
similarity index 100%
rename from app/templates/fr/rss_title_message.tpl
rename to stacosys/templates/fr/rss_title_message.tpl
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/test_stacosys.py b/tests/test_stacosys.py
new file mode 100644
index 0000000..f0d2e64
--- /dev/null
+++ b/tests/test_stacosys.py
@@ -0,0 +1,5 @@
+from stacosys import __version__
+
+
+def test_version():
+    assert __version__ == '0.1.0'
diff --git a/tools/pecosys2stacosys.py b/tools/pecosys2stacosys.py
deleted file mode 100644
index 0d5d26b..0000000
--- a/tools/pecosys2stacosys.py
+++ /dev/null
@@ -1,114 +0,0 @@
-#!/usr/bin/env python
-# -*- coding:utf-8 -*-
-
-import sys
-import os
-import re
-import logging
-import datetime
-from clize import clize, run
-
-# add necessary directories to PATH
-current_path = os.path.realpath('.')
-parent_path = os.path.abspath(os.path.join(current_path, '..'))
-paths = [current_path, parent_path]
-for path in paths:
-    if path not in sys.path:
-        sys.path.insert(0, path)
-
-# import database models 
-from app.services.database import provide_db
-from app.helpers.hashing import salt
-from app.models.site import Site
-from app.models.comment import Comment
-
-# configure logging
-level = logging.DEBUG
-logger = logging.getLogger(__name__)
-logger.setLevel(level)
-ch = logging.StreamHandler()
-ch.setLevel(level)
-formatter = logging.Formatter('%(asctime)s - %(levelname)s - %(message)s')
-ch.setFormatter(formatter)
-logger.addHandler(ch)
-
-# regex
-regex = re.compile(r"(\w+):\s*(.*)")
-
-def remove_from_string(line, start):
-    if line[:len(start)] == start:
-        line = line[len(start):].strip()
-    return line
-
-def convert_comment(db, site, root_url, filename):
-    logger.info('convert %s' % filename)
-    d = {}
-    content = ''
-    with open(filename) as f:
-        for line in f:
-            match = regex.match(line)
-            if match:
-                d[match.group(1)] = match.group(2)
-            else:
-                break
-        is_header = True
-        for line in f:
-            if is_header:
-                if line.strip():
-                    is_header = False
-                else:
-                    continue
-            content = content + line
-
-    # create DB record
-    comment = Comment(site=site, author_name=d['author'], content=content)
-    if 'email' in d:
-        comment.author_email = d['email'].strip()
-    if 'site' in d:
-        comment.author_site = d['site'].strip()
-    if 'url' in d:
-        url = remove_from_string(d['url'], 'https://')
-        url = remove_from_string(url, 'http://')
-        comment.url = remove_from_string(url, root_url)
-        # comment.url = remove_from_string(url, '/')
-    # else:
-    #    comment.url = d['article']
-    if 'date' in d:
-        pub = datetime.datetime.strptime(d['date'], '%Y-%m-%d %H:%M:%S')
-        comment.created = pub
-        comment.published = pub
-    comment.save()
-
-
-@provide_db
-def convert(db, site_name, url, admin_email, comment_dir):
-
-    # create DB tables if needed
-    db.create_tables([Site, Comment], safe=True)
-
-    # delete site record
-    try:
-        site = Site.select().where(Site.name == site_name).get()
-        site.delete_instance(recursive=True)
-    except Site.DoesNotExist:
-        pass
-
-    site = Site.create(name=site_name, url=url, token=salt(url), 
-                       admin_email=admin_email)
-
-    for dirpath, dirs, files in os.walk(comment_dir):
-        for filename in files:
-            if filename.endswith(('.md',)):
-                comment_file = '/'.join([dirpath, filename])
-                convert_comment(db, site, url, comment_file)
-            else:
-                logger.warn('ignore file %s' % filename)
-
-
-@clize
-def pecosys2stacosys(site, url, admin_email, comment_dir):
-    convert(site, url, admin_email, comment_dir)
-
-
-if __name__ == '__main__':
-    run(pecosys2stacosys)