diff --git a/app.py b/app.py
index 07e8943..c358aef 100644
--- a/app.py
+++ b/app.py
@@ -11,14 +11,13 @@ import config
 # MAIN
 #
 
-app = Flask(__name__)
+webapp = Flask(__name__)
 # https://blog.miguelgrinberg.com/post/dynamically-update-your-flask-web-pages-using-turbo-flask
-turbo = Turbo(app)
-app.update_thread_started = False
+turbo = Turbo(webapp)
+webapp.update_thread_started = False
 
 
-config = config.get_config()
-print("SOLANA_CLUSTER", config['cluster'])
+print("SOLANA_CLUSTER", config.get_config()['cluster'])
 transaction_database.run_query()
 recent_blocks_database.run_query()
 print("SELFTEST passed")
@@ -26,7 +25,7 @@ print("SELFTEST passed")
 ######################
 
 
-@app.route('/dashboard')
+@webapp.route('/dashboard')
 def dashboard():
     start_if_needed()
     this_config = config.get_config()
@@ -37,10 +36,10 @@ def dashboard():
         print("transaction_database.RunQuery() took", elapsed, "seconds")
     return render_template('dashboard.html', config=this_config, transactions=maprows)
 
-@app.route('/recent-blocks')
+@webapp.route('/recent-blocks')
 def recent_blocks():
     start_if_needed()
-    this_config = get_config()
+    this_config = config.get_config()
     start = time.time()
     maprows = recent_blocks_database.run_query()
     elapsed = time.time() - start
@@ -50,17 +49,17 @@ def recent_blocks():
 
 
 def start_if_needed():
-    if app.update_thread_started:
+    if webapp.update_thread_started:
         return
-    app.update_thread_started = True
+    webapp.update_thread_started = True
     threading.Thread(target=update_load).start()
 
 
 # note: the poller needs to be started in web context to learn about the server parameters
 def update_load():
-    with app.app_context():
+    with webapp.app_context():
         print('start turbo.js update poller')
-        this_config = app.get_config()
+        this_config = config.get_config()
         while True:
             # note: the push sends update to all subscribed clients
 
diff --git a/config.py b/config.py
index 775c393..a958137 100644
--- a/config.py
+++ b/config.py
@@ -10,5 +10,5 @@ def get_config():
         'devnet':{'cluster': 'devnet', 'cluster_label': 'Devnet'},
     }
     config = switch.get(cluster_param.lower())
-    assert config is not None, f"No Config for " + cluster_param
+    assert config is not None, f"No cluster config for <{cluster_param}>"
     return config