diff --git a/dev/user.clj b/dev/user.clj
new file mode 100644
index 0000000..b05a281
--- /dev/null
+++ b/dev/user.clj
@@ -0,0 +1,17 @@
+(ns user
+  (:require [net.deertopia.doerg.server :as server]
+            [net.deertopia.doerg.config :as cfg]
+            [net.deertopia.doerg.cached-file :as cached-file]
+            [babashka.fs :as fs]))
+
+(cfg/load-config! :profile :dev)
+
+(when (not= :running (server/status))
+  (server/start!))
+
+(defn invalidate-html-cache! []
+  (fs/delete-tree (server/html-dir))
+  nil)
+
+(defn toggle-html-cache! []
+  (alter-var-root #'cached-file/*use-cache?* not))
diff --git a/src/net/deertopia/doerg/config.clj b/src/net/deertopia/doerg/config.clj
index e69ca84..54b9c8e 100644
--- a/src/net/deertopia/doerg/config.clj
+++ b/src/net/deertopia/doerg/config.clj
@@ -66,9 +66,6 @@
       (throw (ex-info "Failed to conform config"
                       (s/explain-data ::config r))))))
 
-(defn load-config! [var spec files & {:as opts}]
-  (alter-var-root var (constantly (read-config files opts))))
-
 (def sources
   [;; Default config.
    (io/resource "net/deertopia/doerg/default-config.edn")
@@ -80,3 +77,10 @@
 (def default (read-config sources))
 
 (def ^:dynamic *cfg* default)
+
+(defn load-config!
+  ([& {:as opts :keys [files]
+       :or {files sources}}]
+   (let [passthru-opts (-> opts (dissoc :files))]
+     (alter-var-root
+      #'*cfg* (constantly (read-config files passthru-opts))))))
diff --git a/src/net/deertopia/doerg/render.clj b/src/net/deertopia/doerg/render.clj
index 0dc8e7e..4a6b73e 100644
--- a/src/net/deertopia/doerg/render.clj
+++ b/src/net/deertopia/doerg/render.clj
@@ -63,7 +63,7 @@
 
 (defn org-document
   "Recursively render an Org-mode document to Hiccup."
-  [doc & {:as opts :keys [postamble]}]
+  [doc & {:as opts :keys [postamble header]}]
   (binding [*opts* opts]
     (tex-temml/binding-worker
       (let [rendered (-> doc gather-footnotes render-tex-snippets
@@ -73,6 +73,8 @@
           [:title "org document"]
           doerg-html/head]
          [:body {:lang default-language}
+          (when header
+            [:header header])
           [:article
            rendered
            (when postamble
@@ -273,6 +275,9 @@
 (defmethod org-element "bold" [{:keys [children]}]
   [:b children])
 
+(defmethod org-element "strike-through" [{:keys [children]}]
+  [:s children])
+
 (defmethod org-element "subscript" [{:keys [children]}]
   [:sub children])
 
diff --git a/src/net/deertopia/doerg/server.clj b/src/net/deertopia/doerg/server.clj
index d3bd992..6a9f0b9 100644
--- a/src/net/deertopia/doerg/server.clj
+++ b/src/net/deertopia/doerg/server.clj
@@ -73,6 +73,21 @@
    #_[:a {:href (str "/n/" (slug/from-uuid path))}
     (or (seq children) raw-link)]])
 
+(def navbar
+  "Hiccup element for Deertopia.net's navbar."
+  [:nav.navbar
+   [:ol.navbar-list
+    [:li
+     [:a.home-link {:href "/"}
+      "🦌 deertopia.net"]]
+    #_[:li
+     [:a.home-link {:href "/graph"}
+      "graph"]]
+    #_
+    [:li
+     [:a.home-link {:onclick "alert('unimplemented }:(')"}
+      "search"]]]])
+
 (defn backlinks-postamble [node]
   (let [backlinks (roam/backlinks node)]
     (when-not (empty? backlinks)
@@ -93,7 +108,8 @@
        :stale? (cached-file/newer-than? org-file html-file)
        :compute #(doerg-render/to-html
                   org-file
-                  :postamble (backlinks-postamble node)))
+                  :postamble (backlinks-postamble node)
+                  :header navbar))
       (-> (str html-file)
           response/file-response
           (response/content-type "text/html")))