add swedish us layout

lambda/configuration.nix

@@ -109,8 +109,13 @@
     enable = true;
     desktopManager.plasma5.enable = true;
     displayManager.startx.enable = true;
-    layout = "us,se";
     xkbOptions = "grp:alt_caps_toggle";
+    layout = "sus";
+    extraLayouts.sus = {
+      description = "Swedish US";
+      languages = [ "se" ];
+      symbolsFile = ../shared/sus.xkb;
+    };
     libinput = {
       enable = true;
       touchpad = {

shared/sus.xkb

@@ -0,0 +1,9 @@
+xkb_symbols "sus" {
+	include "pc"
+	include "se(us)"
+
+	key <AD11> {[ bracketleft, braceleft, aring,      Aring      ]};
+	key <AC10> {[ semicolon,   colon,     odiaeresis, Odiaeresis ]};
+	key <AC11> {[ apostrophe,  quatedbl,  adiaeresis, Adiaeresis ]};
+
+};