For folks landing here by search, see
https://nix-community.github.io/home-manager/options.xhtml#opt-xdg.desktopEntries
To create the entry above,
xdg.desktopEntries.org-protocol = {
name = "org-protocol";
exec = "emacsclient -- %u";
terminal = false;
type = "Application";
categories = ["System"];
mimeType = ["x-scheme-handler/org-protocol"];
};
The file ends up at ~/.local/state/nix/profiles/home-manager/home-path/share/appl ications/ and that share dir is added to XDG_DATA_DIRS. ![]()