More correctly get home directory in Firefox config

hosts/home.nix

@@ -141,7 +141,7 @@ in
       v = "nvim";
       r = "ranger";
       rm = "trash-put";
-      emacs = "emacs -nw";
+      emacs = "emacsclient -nw";
     };
     # Change to directory when exiting ranger with Q
     # https://github.com/ranger/ranger/issues/1554#issuecomment-491650123

modules/firefox/default.nix

@@ -1,8 +1,8 @@
-{ pkgs, user, ... }:
+{ pkgs, user, config, ... }:
 
 let
   startpageDir = import ../startpage/dir.nix;
-  startpage = "file:///home/${user}/${startpageDir}/index.html";
+  startpage = "file:///${config.home.homeDirectory}/${startpageDir}/index.html";
   firefox-csshacks = pkgs.fetchFromGitHub {
     owner = "MrOtherGuy";
     repo = "firefox-csshacks";

modules/i3/default.nix

@@ -92,7 +92,7 @@ in with theme.colors; {
         "Print" = "exec flameshot gui";
       };
       keycodebindings = {
-        "133" = "--release exec rofi -show run -theme";
+        "133" = "--release exec rofi -show drun -theme";
       };
       window.commands = [
         {