Harald(not so much) fun with Elisp. I try to tell Emacs to avoid a certain frame when opening a file via emacsclient. Tweak display-buffer-alist, no? That non-datastructure of lists of cons cells of lists of cons cells. It took me an hour to get the structure right, only to find out that it works for opening files from within Emacs, but server-mode couldn't be bothered.
Because server-mode does not use display-buffer-alist. Instead it uses server-window. ๐คฆโโ๏ธ ๐คฏ