diff --git a/.coveragerc b/.coveragerc
index b0ac4540..cb141192 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -1,3 +1,2 @@
 [run]
 source = matrix_registration
-omit = matrix_registration/__main__.py
diff --git a/README.md b/README.md
index a8d35e89..a7ed46c5 100644
--- a/README.md
+++ b/README.md
@@ -75,15 +75,12 @@ if you want to write your own registration page, you can take a look at the samp
 the html page looks for the query paramater `token` and sets the token input field to it's value. this would allow you to directly share links with the token included, e.g.:
 `https://homeserver.tld/register.html?token=DoubleWizardSki`
 
-### troubleshooting
+### bot
 
-#### SQLAlchemy complains that a value isn't in a DateTime value
+if you're looking for a bot to interface with matrix-registration and manage your tokens, take a look at:
+
+[maubot-invite](https://github.com/williamkray/maubot-invite)
 
-Before #17 introduced SQLAlchemy support the sqlite database incorrectly stored the expire dates, to fix this you have to manually run:
-```sql
-update tokens set ex_date=null where ex_date='None';
-```
-on your database once, or just delete your current database.
 
 ### similar projects
 
diff --git a/alembic/env.py b/alembic/env.py
index a489f6f7..859a08ed 100644
--- a/alembic/env.py
+++ b/alembic/env.py
@@ -23,7 +23,8 @@
 fileConfig(config.config_file_name)
 
 # load matrix-registration config and set db path for alembic
-mr_config.config = mr_config.Config("config.yaml")
+config_path = context.get_x_argument(as_dictionary=True).get("dbname") or "config.yaml"
+mr_config.config = mr_config.Config(config_path)
 config.set_main_option("sqlalchemy.url", mr_config.config.db.replace("{cwd}", f"{getcwd()}/"))
 
 # add your model's MetaData object here
diff --git a/alembic/versions/140a25d5f185_create_tokens_table.py b/alembic/versions/140a25d5f185_create_tokens_table.py
index acf50758..8c57b3ac 100644
--- a/alembic/versions/140a25d5f185_create_tokens_table.py
+++ b/alembic/versions/140a25d5f185_create_tokens_table.py
@@ -22,16 +22,17 @@
 
 
 def upgrade():
-    op.create_table(
-        'ips',
-        sa.Column('id', sa.Integer, primary_key=True),
-        sa.Column('address', sa.String(255), nullable=True)
-    )
-
     conn = op.get_bind()
     inspector = Inspector.from_engine(conn)
     tables = inspector.get_table_names()
 
+    if 'ips' not in tables:
+        op.create_table(
+            'ips',
+            sa.Column('id', sa.Integer, primary_key=True),
+            sa.Column('address', sa.String(255), nullable=True)
+        )
+
     if 'tokens' not in tables:
         op.create_table(
             'tokens',
@@ -51,11 +52,13 @@ def upgrade():
                 Column('disabled', Boolean, default=False)
             )
 
-    op.create_table(
-       'association', db.Model.metadata,
-        Column('ips', String, ForeignKey('ips.address'), primary_key=True),
-        Column('tokens', Integer, ForeignKey('tokens.name'), primary_key=True)
-    )   
+
+    if 'association' not in tables:
+        op.create_table(
+        'association', db.Model.metadata,
+            Column('ips', String, ForeignKey('ips.address'), primary_key=True),
+            Column('tokens', Integer, ForeignKey('tokens.name'), primary_key=True)
+        )   
     
     op.execute("update tokens set expiration_date=null where expiration_date='None'")
 
@@ -64,4 +67,3 @@ def upgrade():
 def downgrade():
     op.alter_column('tokens', 'expiration_date', new_column_name='ex_date')
     op.alter_column('tokens', 'max_usage', new_column_name='one_time')
-    pass
diff --git a/matrix_registration/__init__.py b/matrix_registration/__init__.py
index 359b4087..3ad4dc48 100644
--- a/matrix_registration/__init__.py
+++ b/matrix_registration/__init__.py
@@ -2,5 +2,5 @@
 from . import tokens
 from . import config
 
-__version__ = '1.0.0.dev0'
+__version__ = '1.0.0.dev1'
 name = 'matrix_registration'
diff --git a/matrix_registration/api.py b/matrix_registration/api.py
index 6c92e19e..f07dbacd 100644
--- a/matrix_registration/api.py
+++ b/matrix_registration/api.py
@@ -243,11 +243,6 @@ def token():
         return jsonify(tokens.tokens.toList())
     elif request.method == 'POST':
         data = request.get_json()
-        if data:
-            if 'expiration' in data:
-                expiration_date = data['expiration']
-            if 'max_usage' in data:
-                max_usage = data['max_usage']
         try:
             if data:
                 if 'expiration_date' in data and data['expiration_date'] is not None:
@@ -263,7 +258,11 @@ def token():
             }
             return make_response(jsonify(resp), 400)
         return jsonify(token.toDict())
-    abort(400)
+    resp = {
+        'errcode': 'MR_BAD_USER_REQUEST',
+        'error': 'malformed request'
+    }
+    return make_response(jsonify(resp), 400)
 
 
 @api.route('/api/token/<token>', methods=['GET', 'PATCH'])
diff --git a/tox.ini b/tox.ini
index 7546c05f..625741af 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py36,py37,py38
+envlist = py37,py38,p39
 [testenv]
 deps = coveralls
 commands = coverage erase