diff --git a/backend/src/app.py b/backend/src/app.py
index 9df787a..de5b13f 100644
--- a/backend/src/app.py
+++ b/backend/src/app.py
@@ -33,7 +33,8 @@ state.rooms[1000] = Room(
     name="Test Room",
     pin=None,
     tags=set(),
-    songs={},
+    range_size=100,
+    songs={"b": (Song(uuid="b", title="title", artist="art", tags=["a", "B"], image_id="img", youtube_id="yt"), 1)},
     history=[],
     playing=[Song(uuid="<uuid>", title="<title>", artist="<artist>", tags=[], image_id="<img>", youtube_id="<yt>")],
     playing_idx=0,
@@ -114,6 +115,9 @@ def room_new():
     if (room_cords := request.args.get("coords")) is None:
         return error("Missing room coords")
 
+    if (room_range := request.args.get("range")) is None:
+        return error("Missing room range")
+
     if room_pin := request.args.get("pin"):
         room_pin = int(room_pin)
     else:
@@ -124,6 +128,7 @@ def room_new():
     room = Room(
         id=max(state.rooms or [0]) + 1,  #
         coord=(float(lat), float(lon)),
+        range_size=int(room_range),
         name=room_name,
         pin=room_pin,
         tags=set([tag for tag in request.args.get("tags", "").split(",") if tag]),
diff --git a/backend/src/room.py b/backend/src/room.py
index 8b67e4f..5109884 100644
--- a/backend/src/room.py
+++ b/backend/src/room.py
@@ -34,6 +34,7 @@ class Room:
     name: str
     pin: int | None
     tags: set[str]
+    range_size: int  # in meters ??
 
     songs: dict[str, UserScoredSong]  # all songs + user score (the playlist)
     history: list[Song]  # all songs previously played
@@ -125,6 +126,7 @@ def test_algo():
         "test",
         None,
         set(["rock", "rap"]),
+        100,
         {
             "paulham": (songs[0], 7),
             "cisco": (songs[1], 5),