By updatable, do you mean the ability for users to install your app on their server, and the application to then download new code from your “update” server somewhere and deploy that code locally via a button click?
As long as the local file permissions allowed ColdFusion to write files I don’t see why not, but that can be tricky if you are trying to update stuff currently being used.
Check out the ColdBox Platform Utilities. They run in CF Builder, but are just .cfm pages. There is an update option which downloads the newest version from forgebox and installs it.
https://github.com/ColdBox/coldbox-platform-utilities/blob/master/src/handlers/AutoUpdate.cfm
Thanks!
~Brad
ColdBox Platform Evangelist
Ortus Solutions, Corp
E-mail: brad@coldbox.org
ColdBox Platform: http://www.coldbox.org
Blog: http://www.codersrevolution.com