Sorry, I didn’t see this message!

No, I used Deken to install zexy, then opened a zexy help file. I assumed that that would work, and apparently it doesn’t, but that seems to be a specification issue colliding with an unfounded assumption. Creating [declare -lib zexy] before trying to load a zexy external does indeed cause zexy to work, so thank you. I apologize that I didn’t know this requirement, but I almost never use externals, except occasionally my own.