Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
Fantastical 2 - Fantastical, the Mac calendar app you'll enjoy using. Quickly create new events with natural language input and more.
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
Google Calendar - Spend less time managing your day & more time enjoying it
LiteSpeed Web Server - LiteSpeed Web Server (LSWS) is a high-performance Apache drop-in replacement.
Itsycal - Itsycal for Mac. Itsycal is a tiny menu bar calendar. If you want, it will display your events as a companion to the Mac Calendar app. You can also create and delete (but not edit) events. Download Itsycal for macOS 10.