Many, many years I had the misfortune to end up on a project that used Symphony[0] as the CMS for a client website. The entire theming system is based on XSLT,

Many, many years I had the misfortune to end up on a project that used Symphony[0] as the CMS for a client website. The entire theming system is based on XSLT, which makes some things really nice and simple, and other basic stuff an absolute pain in the arse (trees, parents, changing values based on something else etc). [0] https://www.getsymphony.com/ https://www.getsymphony.com/