diff --git a/doerg/src/net/deertopia/doerg/render.clj b/doerg/src/net/deertopia/doerg/render.clj
index c0f5c50..03582be 100644
--- a/doerg/src/net/deertopia/doerg/render.clj
+++ b/doerg/src/net/deertopia/doerg/render.clj
@@ -40,14 +40,13 @@
 (def ^:dynamic ^:private *document-info*)
 
 (declare ^:private gather-footnotes render-renderer-error
-         view-children-as-seq)
+         view-children-as-seq render-tex-snippets)
 
 (defn org-element-recursive
   "Recursively render an Org-mode element to Hiccup."
   [e]
   (tex/binding-tex-worker
     (->> e
-         ;; gather-footnotes
          (sp/transform
           [element/postorder-walker view-children-as-seq]
           (fn [node]
@@ -59,7 +58,8 @@
 (defn org-document
   "Recursively render an Org-mode document to Hiccup."
   [doc]
-  (let [rendered (org-element-recursive (gather-footnotes doc))]
+  (let [rendered (-> doc gather-footnotes render-tex-snippets
+                     org-element-recursive)]
     [:html
      [:head
       [:title "org document"]
@@ -126,6 +126,30 @@
                      element/footnotes-section?]
                     sp/NONE))))
 
+(defn- render-tex-snippets [doc]
+  (let [promises (atom [])
+        r (->> doc (sp/transform
+                    [element/postorder-walker
+                     #(element/of-type?
+                       % "latex-fragment" "latex-environment")]
+                    (fn [node]
+                      (let [p (promise)]
+                        (swap! promises #(conj % {:promise p :node node}))
+                        (assoc node ::rendered p)))))]
+    (future
+      (println "run")
+      (prn (count @promises))
+      (Thread/sleep (* 1000 1))
+      (doseq [[ix {:keys [promise node]}]
+              (map (fn [i x] [i x]) (range) @promises)]
+        (printf "what %d\n" ix)
+        (flush)
+        (deliver promise (str ix))))
+    r))
+
+(comment
+ (render-tex-snippets doc))
+
 
 
 (defn- render-pprint
@@ -270,12 +294,14 @@
 
 (defmethod org-element "latex-fragment" [{:keys [contents value] :as e}]
   (let [display? (str/starts-with? value "\\[")]
+    [:span.latex-fragment (-> e ::rendered (deref 2000 "«timed out»"))]
     #_
-    (render-pprint (assoc e :display? display?))
     [:span.latex-fragment
      (hiccup/raw (tex/render contents :display? display?))]))
 
-(defmethod org-element "latex-environment" [{:keys [value]}]
+(defmethod org-element "latex-environment" [{:keys [value] :as e}]
+  [:span.latex-fragment (-> e ::rendered (deref 2000 "«timed out»"))]
+  #_
   [:span.latex-fragment
    (hiccup/raw (tex/render value :display? true))])
 
@@ -319,4 +345,3 @@
   [:span.org-link.external
    [:a {:href raw-link}
     (or (seq children) raw-link)]])
-
diff --git a/doerg/src/net/deertopia/doerg/repl.clj b/doerg/src/net/deertopia/doerg/repl.clj
index 56dfe43..8a03a0b 100644
--- a/doerg/src/net/deertopia/doerg/repl.clj
+++ b/doerg/src/net/deertopia/doerg/repl.clj
@@ -14,7 +14,9 @@
   "/home/msyds/org/20250919114912-homepage.org"
   #_
   "/home/msyds/org/20251111182118-path_induction.org"
-  "/home/msyds/org/20250512144715-natural_transformation_category_theory.org")
+  #_
+  "/home/msyds/org/20250512144715-natural_transformation_category_theory.org"
+  "/home/msyds/org/20251021155921-path_action.org")
 
 (defn- force-create-sym-link [path target]
   (fs/delete-if-exists path)