Set initial colorscheme on debian hosts

templates/nvim/lua/colorscheme.lua.j2

@@ -1,9 +1,6 @@
 -- {{ ansible_managed }}
 
--- set the colorscheme whenever the background setting changes
+local background_callback = function()
-vim.api.nvim_create_autocmd({'OptionSet'}, {
-    pattern = {'background'},
-    callback = function()
   if vim.o.background == 'dark' then
     vim.cmd('colorscheme github_dark_dimmed')
   else
@@ -12,8 +9,18 @@ vim.api.nvim_create_autocmd({'OptionSet'}, {
 
   -- force a full redraw:
   vim.cmd('mode')
-    end
+end
-})
+
+-- set the colorscheme whenever the background setting changes
+vim.api.nvim_create_autocmd(
+  { 'OptionSet' },
+  { pattern = { 'background' }, callback = background_callback }
+)
+
+
+{% if ansible_facts['os_family'] == 'Debian' %}
+background_callback()
+{% endif %}
 
 {% if ansible_facts['os_family'] == 'Archlinux' %}
 --[[