mention vfs refactor in changelog because it has some user-facing consequences (lack of version history)

content/treehouse/changelog.tree

@@ -1,5 +1,28 @@
 %% title = "what's going on inside the house? (a changelog)"
 
+- *revision 13:* [virtual insanity](https://www.youtube.com/watch?v=4JkIs37a2JE){.secret}
+
+    - removed version history :cry:
+
+        + the quality of this feature was too low for my standards.
+        this was caused by the treehouse's codebase being one giant pile of spaghetti, onto which bolting a version history feature only caused more havoc :oh:
+
+            - if you've ever run across broken branch links, you can thank version history jank for that.
+
+    - I refactored treehouse (the software) to no longer generate files upfront!
+    instead, there's a _virtual file system_ from which the web server sources files.
+
+        - this virtual file system, or at least [the part that assembles the page as it's served to you][vfs target], generates pages lazily---which causes my dev experience to be _faaaaaaaAAAAAAAAAAAAAAAAAAAA_
+
+        st
+
+        [vfs target]: https://src.liquidev.net/liquidex/treehouse/src/commit/0f8d05adebfe323908be487187d9afe6aaa2df36/crates/treehouse/src/generate.rs#L511
+        
+        + this generally doesn't mean anything for you, but for me... man, does the treehouse feel fast to edit now!
+
+            - generating all the page versions upfront meant I needed to wait over a second for the page to refresh, which made editing any minute details _really_ painful.
+            imagine I did all the previous layout refurnishment with that...
+
 % id = "01JBWHXTMC7GZEMTH2WT7TN1GT"
 - *revision 12:* refurnishment