Add default tmux config and plugins

site-cookbooks/kosmos-base/templates/default/tmux.conf.default.erb

@@ -0,0 +1,14 @@
+# Managed by Chef (kosmos-base::tmux). Do not edit on this host.
+#
+# This is the system default tmux config. It is sourced by each user's
+# ~/.tmux.conf via `source-file`. Plugins are managed by Chef and live in
+# a shared, root-owned directory; users do not install plugins themselves.
+
+set-environment -g TMUX_PLUGIN_MANAGER_PATH '<%= @plugins_dir %>'
+
+<% @plugins.each do |shorthand, _meta| -%>
+set -g @plugin '<%= shorthand %>'
+<% end -%>
+
+# Initialize TPM Redux (must remain the last line of the file)
+run '<%= @plugins_dir %>/tpm-redux/tpm'

site-cookbooks/kosmos-base/templates/default/tmux.conf.user.erb

@@ -0,0 +1,15 @@
+# ~/.tmux.conf — created/managed by Chef (kosmos-base::tmux).
+#
+# This file imports the system default config below, then appends any overrides
+# the user has submitted to files/default/tmux_users/<username>.conf in the
+# kosmos-base cookbook. If you manage your own tmux config locally and have not
+# submitted a file, Chef will not overwrite it.
+
+source-file <%= @default_conf %>
+
+<% if @user_content && !@user_content.empty? -%>
+# === user overrides (from files/default/tmux_users/<username>.conf) ===
+<%= @user_content %>
+<% else -%>
+# === Add your custom settings below this line ===
+<% end -%>