IPS is an Internet publishing system with the world first online editing system written in 1996 that lets you edit a webpage from a webpage. Over the decades the functionality has increased to a point where its now a robust enterprise app that does a number of things. Apache without IPS is just Gopher. IPS is all the software you need to do dynamic contemporary, full featured apps and websites.
I was part of a team from 2015 on that optimized the code using HTML5 instead of HTML and with the combination of DHTML and JavaScript, enhanced the user interface, so it meets or exceeds contemporaneous user experience. Written before CSS, i was able to optimize the code further both for the program UI and the resultant generative code so that it meets or exceeds contemporaneous CSS standards.