Viscosity OpenVPN client for Mac is easy to use and provides native interface for users to configure OpenVPN connection. The application is maintained, supports the latest versions of OpenVPN and supports native openvpn configuration files for easy use within enterprise.

Our company has used Viscosity as a VPN tool for years and we've had relatively smooth success with it. It was easy to deploy onto new hire laptops and the setup process was simple for folks that aren't super tech-savvy.

Spark is amazing in terms of scalability and programability. 1. Easy to run pyspark and scala version 2. SparkSQL is good for traditional RDBMS developers