Added tmux to dingserver

hosts/dingserver/configuration.nix

@@ -11,6 +11,7 @@
     ./caddy.nix
     ./synapse.nix
     ./prometheus.nix
+    ./tmux.nix
   ];
 
   # Force disable the common boot loader

hosts/dingserver/tmux.nix

@@ -0,0 +1,38 @@
+{...}: {
+  programs.tmux = {
+    enable = true;
+    keyMode = "vi";
+    terminal = "tmux-256color";
+    escapeTime = 0;
+    baseIndex = 1;
+    historyLimit = 10000;
+    clock24 = true;
+    extraConfig = ''
+      unbind-key -a -T prefix
+      unbind-key -a -T root
+      unbind-key -a -T copy-mode
+      unbind-key -a -T copy-mode-vi
+
+      set -g prefix M-w
+
+      bind q detach
+      bind space copy-mode
+      bind -T copy-mode-vi Escape send-keys -X cancel
+
+      bind -T copy-mode-vi Escape send -X cancel
+      bind -T copy-mode-vi k send -X cursor-up
+      bind -T copy-mode-vi j send -X cursor-down
+      bind -T copy-mode-vi h send -X cursor-left
+      bind -T copy-mode-vi l send -X cursor-right
+
+      bind -T copy-mode-vi Space send -X begin-selection
+      bind -T copy-mode-vi y send -X copy-selection-no-clear
+      bind -T copy-mode-vi Enter send -X copy-selection-and-cancel
+
+      set -g mouse on
+      bind -n WheelUpPane copy-mode -e
+      bind -T copy-mode-vi WheelUpPane send -X -N 5 scroll-up
+      bind -T copy-mode-vi WheelDownPane send -X -N 5 scroll-down
+    '';
+  };
+}