Lucee is an open-source CFML engine and the successor of Railo. We proudly support Lucee in our environment, and more info about its background and usage is below.
The Lucee project was forked from Railo 4.2 in January 2015 and is owned by Lucee Association Switzerland. Though development on Railo has halted, Lucee will eventually inherit the enhancements planned for Railo 5. Currently Lucee operates the same as the latest available version of Railo, so you can migrate your Railo codebase to it without any surprises.
See these blogs for more info on the switch from Railo to Lucee:
Usage / Resources
If you're new to CFML in general, the following resources will help you get learn the basics:
How do I access my Lucee Web Administator page?
The preferred way to access your site's Lucee Web Administrator is by clicking the Web Administrator link within your control panel. Alternatively, you may access it by appending /lucee/admin/web.cfm to the end of your site's domain name or testing URL.
How do I create a datasource within Lucee?
You may create Lucee datasources (DSNs) either withing your site's Lucee Web Administrator or within the site's Application.cfc. More info on this is in this Lucee Cookbook entry: How to define a Datasource