Support environment variable to specify configuration path

vona/config/__init__.py

@@ -12,7 +12,7 @@ server_name: str = ""
 signing_key: str = ""
 support: dict = {"contacts": []}
 
-_CONFIG_PATH = Path("/etc/vona/config.toml")
+_CONFIG_PATH = Path(os.getenv("VONA_CONFIG", "/etc/vona/config.toml"))
 
 
 def _fatal(msg: str) -> None:

vona/federation/__init__.py

@@ -476,4 +476,4 @@ async def space_hierachy(roomId):
 	return jsonify({
 		"errcode": "M_NOT_FOUND",
 		"error": "Room does not exist."
-	})
+	}), 404

vona/utils/__main__.py

@@ -1,7 +1,8 @@
 print("Available utils:")
 
 a = [
-	"makekey"
+	"makekey",
+	"joinroom"
 ]
 
 for t in a: