If you install Debian 12 without DE. Install dependent packages. Compile CDE. Nothing will work. Do not run CDE according to these instructions
There are no messages. /usr/dt/bin/dtlogin -daemon - nothing happens
I spent a whole day to run CDE on Debian 12 according to the instructions: https://sourceforge.net/p/cdesktopenv/wiki/LinuxBuild/. Doesn't start.