diff --git a/rtm/__init__.py b/rtm/__init__.py
new file mode 100755
index 0000000..c34b778
--- /dev/null
+++ b/rtm/__init__.py
@@ -0,0 +1,132 @@
+#!/usr/bin/env python3
+# pip3 install icalendar
+import logging
+import os
+import re
+from collections import deque
+from pathlib import Path
+from sys import argv
+from typing import Dict, List, Optional, TypeVar
+from datetime import datetime
+
+from kython.klogging import LazyLogger
+from kython import group_by_key, cproperty
+from kython import kompress
+
+import icalendar # type: ignore
+from icalendar.cal import Todo # type: ignore
+
+
+logger = LazyLogger('rtm-provider')
+
+
+def get_last_backup():
+    return max(Path('***REMOVED***').glob('*.ical*'))
+
+
+# TODO extract in a module to parse RTM's ical?
+class MyTodo:
+    def __init__(self, todo: Todo, revision=None) -> None:
+        self.todo = todo
+        self.revision = revision
+
+    @cproperty
+    def notes(self) -> List[str]:
+        # TODO can there be multiple??
+        desc = self.todo['DESCRIPTION']
+        notes = re.findall(r'---\n\n(.*?)\n\nUpdated:', desc, flags=re.DOTALL)
+        return notes
+
+    @cproperty
+    def tags(self) -> List[str]:
+        desc = self.todo['DESCRIPTION']
+        [tags_str] = re.findall(r'\nTags: (.*?)\n', desc, flags=re.DOTALL)
+        if tags_str == 'none':
+            return []
+        tags = [t.strip() for t in tags_str.split(',')]
+        return tags
+
+    @cproperty
+    def uid(self) -> str:
+        return str(self.todo['UID'])
+
+    @cproperty
+    def title(self) -> str:
+        return str(self.todo['SUMMARY'])
+
+    def get_status(self) -> str:
+        if 'STATUS' not in self.todo:
+            return None # type: ignore
+        # TODO 'COMPLETED'? 
+        return str(self.todo['STATUS'])
+
+    # TODO tz?
+    @cproperty
+    def time(self) -> datetime:
+        t1 = self.todo['DTSTAMP'].dt
+        t2 = self.todo['LAST-MODIFIED'].dt
+        assert t1 == t2 # TODO not sure which one is correct
+        return t1
+
+    def is_completed(self) -> bool:
+        return self.get_status() == 'COMPLETED'
+
+    def __repr__(self):
+        return repr(self.todo)
+
+    def __str__(self):
+        return str(self.todo)
+
+    @staticmethod
+    def alala_key(mtodo):
+        return (mtodo.revision, mtodo.get_time())
+
+
+class RtmBackup:
+    def __init__(self, data: bytes, revision=None) -> None:
+        self.cal = icalendar.Calendar.from_ical(data)
+        self.revision = revision
+
+    @staticmethod
+    def from_path(path: Path) -> 'RtmBackup':
+        with kompress.open(path, 'rb') as fo:
+            data = fo.read()
+            revision = 'TODO FIXME' # extract_backup_date(path)
+            return RtmBackup(data, revision)
+
+    def get_all_todos(self) -> List[MyTodo]:
+        return [MyTodo(t, self.revision) for t in self.cal.walk('VTODO')]
+
+    def get_todos_by_uid(self) -> Dict[str, MyTodo]:
+        todos = self.get_all_todos()
+        res = {todo.uid: todo for todo in todos}
+        assert len(res) == len(todos) # hope uid is unique, but just in case
+        return res
+
+    def get_todos_by_title(self) -> Dict[str, List[MyTodo]]:
+        todos = self.get_all_todos()
+        return group_by_key(todos, lambda todo: todo.title)
+
+
+def get_all_tasks():
+    b = RtmBackup.from_path(get_last_backup())
+    return b.get_all_todos()
+
+
+def get_active_tasks():
+    return [t for t in get_all_tasks() if not t.is_completed()]
+
+
+def test():
+    tasks = get_all_tasks()
+    assert len([t for t in tasks if 'gluons' in t.title]) > 0
+
+
+def main():
+    backup = RtmBackup.from_path(get_last_backup())
+    for t in backup.get_all_todos():
+        print(t)
+
+
+if __name__ == '__main__':
+    main()