Fix up configuration, add some meta files and utils

cmd/generate_key.py

@@ -0,0 +1,9 @@
+# Generates a key in the format compatible with Synapse and Vona.
+
+import base64
+import os
+
+key = base64.b64encode(os.urandom(32)).decode("utf-8")[:43].replace("/", "_")
+key_id = base64.b64encode(os.urandom(32)).decode("utf-8")[:6].replace("/", "_")
+
+print(f"ed25519 {key_id} {key}")