Use a theme with a decent dark mode. Still not quite what's needed, not handling multiple content folders or tagging properly.

.gitmodules

@@ -4,3 +4,6 @@
 [submodule "themes/recipes"]
 	path = themes/recipes
 	url = https://github.com/butlerx/hugo-recipes.git
+[submodule "themes/awesome"]
+	path = themes/awesome
+	url = https://github.com/hugo-sid/hugo-blog-awesome

hugo.toml

@@ -1,3 +1,7 @@
 baseURL = 'https://example.org/'
 languageCode = 'en-us'
 title = 'My New Hugo Site'
+
+#theme = "recipes"
+#theme = "cookbook"
+theme = "awesome"