l: add missing IM.nix

lass/2configs/IM.nix

@@ -0,0 +1,45 @@
+with (import <stockholm/lib>);
+{ config, lib, pkgs, ... }:
+
+{
+  imports = [
+    ./bitlbee.nix
+  ];
+
+  systemd.services.chat = let
+    tmux = pkgs.writeDash "tmux" ''
+      exec ${pkgs.tmux}/bin/tmux -f ${pkgs.writeText "tmux.conf" ''
+        set-option -g prefix `
+        unbind-key C-b
+        bind ` send-prefix
+
+        set-option -g status off
+        set-option -g default-terminal screen-256color
+
+        #use session instead of windows
+        bind-key c new-session
+        bind-key p switch-client -p
+        bind-key n switch-client -n
+        bind-key C-s switch-client -l
+      ''} "$@"
+    '';
+  in {
+    description = "chat environment setup";
+    after = [ "network.target" ];
+    wantedBy = [ "multi-user.target" ];
+
+    restartIfChanged = false;
+
+    path = [
+      pkgs.rxvt_unicode.terminfo
+    ];
+
+    serviceConfig = {
+      User = "lass";
+      RemainAfterExit = true;
+      Type = "oneshot";
+      ExecStart = "${tmux} -2 new-session -d -s IM ${pkgs.weechat}/bin/weechat";
+      ExecStop = "${tmux} kill-session -t IM";
+    };
+  };
+}