change niri a bit, and add tmux to nix config

config/niri/config.kdl

@@ -221,7 +221,7 @@ binds {
     Mod+Shift+Minus { set-window-height "-10%"; }
     Mod+Shift+Equal { set-window-height "+10%"; }
 
-    Mod+V       { toggle-window-floating; }
+    Mod+Space       { toggle-window-floating; }
     Mod+Shift+V { switch-focus-between-floating-and-tiling; }
 
     Mod+Shift+F { toggle-column-tabbed-display; }

nixos/home-configuration/apps/zsh.nix

@@ -54,6 +54,9 @@
 	  bindkey -e
       PS1="[%n in %m %~] "
 	  eval "$(starship init zsh)"
+	  if command -v tmux &> /dev/null && [ -z "$TMUX" ]; then 
+		  tmux attach -t default || tmux new -s default 
+	  fi
     '';
   };
 }

nixos/home-configuration/configuration.nix

@@ -84,4 +84,11 @@ in {
     userName = "coast";
   };
 
+  programs.tmux = {
+	  enable = true;
+  };
+
+  programs.tmate = {
+	  enable = true;
+  };
 }