diff --git a/index.xml b/index.xml
index 1f19889..4cdda89 100644
--- a/index.xml
+++ b/index.xml
@@ -102,7 +102,7 @@
 <tr>
 <td><a href="#feb-2">Feb. 2</a></td>
 <td>Joe Cutler</td>
-<td><em>TBD</em></td>
+<td>delta: ordered types for stream processing</td>
 </tr>
 
 <tr>
diff --git a/lsd-seminar/2024wi/index.html b/lsd-seminar/2024wi/index.html
index 24c7b12..4d5b906 100644
--- a/lsd-seminar/2024wi/index.html
+++ b/lsd-seminar/2024wi/index.html
@@ -241,7 +241,7 @@ <h1 itemprop="name">Languages, Systems, and Data Seminar (Winter 2024)</h1>
 <tr>
 <td><a href="#feb-2">Feb. 2</a></td>
 <td>Joe Cutler</td>
-<td><em>TBD</em></td>
+<td>delta: ordered types for stream processing</td>
 </tr>
 
 <tr>
diff --git a/themes/academic b/themes/academic
deleted file mode 160000
index 8d596ff..0000000
--- a/themes/academic
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 8d596ffed2d080010c561679cf4e9b4da1554781