Is it ok to add new details to the camera-ready version of the conference paper?
Usually not, but as Buffy said, ask.  I don't know your field, either, so this may be specific to my own.  However, accepted papers are almost never modified after they are peer reviewed, since even a &quot;minor&quot; change will need to be reviewed again.  Think of what it might mean if a mathematical proof were accepted, then slightly modified but those modifications introduced an error.  Without thorough review an erroneous paper would be published.
In many conferences I've been to the answer to that has been to address it at the podium, not the paper.  Papers are written sometimes months before the conference, so it is accepted that more work will be done.  Use your talk to introduce those changes, and then turn the work into another article.