diff --git a/Dockerfile b/Dockerfile
index 5efffa9..67cd3e8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,13 +1,20 @@
 FROM python:3.10-slim
 
 RUN apt-get update && \
-    apt-get install -y unixodbc libfbclient2
+    apt-get install -y unixodbc libfbclient2 gnupg curl ca-certificates apt-transport-https software-properties-common
+
+  
+COPY install_ms_sql_driver.sh /tmp/install_ms_sql_driver.sh
+RUN chmod +x /tmp/install_ms_sql_driver.sh && \
+    /tmp/install_ms_sql_driver.sh && \
+    rm /tmp/install_ms_sql_driver.sh
+
 
 WORKDIR /usr/src/app
 
 COPY requirements.txt ./
 RUN pip install --no-cache-dir -r requirements.txt
 
-COPY . .
+COPY ./*.py .
 
 ENTRYPOINT ["python", "./sync.py"]
\ No newline at end of file
diff --git a/config.yaml.example b/config.yaml.example
index ebe482e..47ceeb4 100644
--- a/config.yaml.example
+++ b/config.yaml.example
@@ -1,50 +1,51 @@
 firebird:
   db1:
-    host: "localhost"
+    host: localhost
     port: 3050
-    database: "/path/to/database1.fdb"
-    user: "sysdba"
-    password: "masterkey"
+    database: /path/to/database1.fdb
+    user: sysdba
+    password: masterkey
   db2:
-    host: "localhost"
+    host: localhost
     port: 3050
-    database: "/path/to/database2.fdb"
-    user: "sysdba"
-    password: "masterkey"
+    database: /path/to/database2.fdb
+    user: sysdba
+    password: masterkey
 
 mssql:
   db1:
-    server: "localhost"
-    database: "mydatabase1"
-    user: "sa"
-    password: "mypassword"
+    server: localhost
+    database: mydatabase1
+    user: sa
+    password: mypassword
+    trust_server_certificate: true
   db2:
-    server: "localhost"
-    database: "mydatabase2"
-    user: "sa"
-    password: "mypassword"
+    server: localhost
+    database: mydatabase2
+    user: sa
+    password: mypassword
 
 frappe_auth:
-  api_key: "your_api_key"
-  api_secret: "your_api_secret"
+  api_key: your_api_key
+  api_secret: your_api_secret
 
 tasks:
-  - endpoint: "http://frappe.example.com/api/resource/Doctype"
-    query: "SELECT id, name FROM table"
+  - endpoint: https://frappe.example.com/api/resource/Doctype
+    query: SELECT id, name FROM table
     mapping:
-      "frappe_field_1": "id"
-      "frappe_field_2": "name"
-    db_type: "firebird"
-    db_name: "db1"
-    direction: "db_to_frappe"
-    key_fields: ["frappe_field_1"]
+      frappe_field_1: id
+      frappe_field_2: name
+    db_type: firebird
+    db_name: db1
+    direction: db_to_frappe
+    key_fields: [frappe_field_1]
 
-  - endpoint: "http://frappe.example.com/api/resource/OtherDoctype"
-    table_name: "my_table"
+  - endpoint: https://frappe.example.com/api/resource/OtherDoctype
+    table_name: my_table
     mapping:
-      "frappe_field_a": "code"
-      "frappe_field_b": "description"
-    db_type: "mssql"
-    db_name: "db2" 
-    direction: "frappe_to_db"
-    key_fields: ["code"]
+      frappe_field_a: code
+      frappe_field_b: description
+    db_type: mssql
+    db_name: db2
+    direction: frappe_to_db
+    key_fields: [code]
diff --git a/database.py b/database.py
index 0fa97eb..e0df465 100644
--- a/database.py
+++ b/database.py
@@ -21,11 +21,11 @@ def _connect_firebird(self, config: Dict[str, Dict[str, str | Number]]):
             for db_name, db_config in config.items():
                 try:
                     conn = fdb.connect(
-                        host=db_config["host"],
-                        port=db_config["port"],
-                        database=db_config["database"],
-                        user=db_config["user"],
-                        password=db_config["password"],
+                        host=db_config.get("host"),
+                        port=db_config.get("port"),
+                        database=db_config.get("database"),
+                        user=db_config.get("user"),
+                        password=db_config.get("password"),
                         charset="UTF8",
                     )
                     self.firebird_conns[db_name] = conn
@@ -39,11 +39,12 @@ def _connect_mssql(self, config: Dict[str, Dict[str, str | Number]]):
             for db_name, db_config in config.items():
                 try:
                     mssql_conn_str = (
-                        f"DRIVER={{ODBC Driver 17 for SQL Server}};"
-                        f"SERVER={db_config['server']};"
-                        f"DATABASE={db_config['database']};"
-                        f"UID={db_config['user']};"
-                        f"PWD={db_config['password']}"
+                        f"DRIVER={{ODBC Driver 18 for SQL Server}};"
+                        f"SERVER={db_config.get('server')};"
+                        f"DATABASE={db_config.get('database')};"
+                        f"UID={db_config.get('user')};"
+                        f"PWD={db_config.get('password')};"
+                        f"TrustServerCertificate={'yes' if db_config.get('trust_server_certificate') else 'no'}"
                     )
                     conn = pyodbc.connect(mssql_conn_str)
                     self.mssql_conns[db_name] = conn
diff --git a/frappe.py b/frappe.py
index 3f02ab8..ad37d09 100644
--- a/frappe.py
+++ b/frappe.py
@@ -4,6 +4,7 @@
 import requests
 import json
 from datetime import datetime, date
+from decimal import Decimal
 
 
 class FrappeAPI:
@@ -23,14 +24,14 @@ def _setup_auth(self, auth_config):
             )
 
     def send_data(self, method, endpoint, data):
-        if self.dry_run:
-            logging.info(
-                f"""DRY_RUN: {method} {endpoint}
-                    {data}"""
-            )
-            return None
         try:
-            json_data = json.dumps(data, cls=DateTimeEncoder)
+            json_data = json.dumps(data, cls=CustomEncoder)
+            if self.dry_run:
+                logging.info(
+                    f"""DRY_RUN: {method} {endpoint}
+                        {json_data}"""
+                )
+                return None
             headers = self.headers.copy()
             headers["Content-Type"] = "application/json"
             if method == "POST":
@@ -60,8 +61,10 @@ def get_data(self, endpoint, params=None):
             return None
 
 
-class DateTimeEncoder(json.JSONEncoder):
+class CustomEncoder(json.JSONEncoder):
     def default(self, obj):
         if isinstance(obj, (datetime, date)):
             return obj.isoformat()
-        return super(DateTimeEncoder, self).default(obj)
+        elif isinstance(obj, Decimal):
+            return float(obj)  # or str(obj) if you prefer
+        return super(CustomEncoder, self).default(obj)
diff --git a/install_ms_sql_driver.sh b/install_ms_sql_driver.sh
new file mode 100644
index 0000000..f4f0aae
--- /dev/null
+++ b/install_ms_sql_driver.sh
@@ -0,0 +1,17 @@
+set -e
+
+apt-get update
+apt-get install -y curl
+
+# Debian 12
+curl -fsSL https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor -o /usr/share/keyrings/microsoft-prod.gpg
+
+#Debian 12
+curl https://packages.microsoft.com/config/debian/12/prod.list | tee /etc/apt/sources.list.d/mssql-release.list
+
+apt-get update
+ACCEPT_EULA=Y apt-get install -y msodbcsql18
+# optional: for bcp and sqlcmd
+# ACCEPT_EULA=Y apt-get install -y mssql-tools18
+# echo 'export PATH="$PATH:/opt/mssql-tools18/bin"' >> ~/.bashrc
+# source ~/.bashrc
\ No newline at end of file