diff --git a/default.nix b/default.nix
index 33ffdff..43b5bc2 100644
--- a/default.nix
+++ b/default.nix
@@ -18,8 +18,10 @@ in
     buildInputs = [ yarnModules bergamot-elm ];
   
     installPhase = ''
-      mkdir -p $out $out/katex $out/katex-expression $out/bergamot
+      mkdir -p $out $out/katex $out/vis-network $out/normalize $out/katex-expression $out/bergamot
       cp ${yarnModules}/node_modules/katex/dist/katex.min.css $out/katex
+      cp ${yarnModules}/node_modules/vis-network/dist/vis-network.min.js $out/vis-network
+      cp ${yarnModules}/node_modules/normalize.css/normalize.css $out/normalize/normalize.css
       cp -r ${yarnModules}/node_modules/katex/dist/fonts $out/katex
       cp ${yarnModules}/node_modules/@navsnpm/katex-expression/dist/katex-expression/* $out/katex-expression
       cp ${bergamot-elm}/Main.min.js $out/bergamot/bergamot.js
diff --git a/package.json b/package.json
index 7fee9d3..9708652 100644
--- a/package.json
+++ b/package.json
@@ -6,6 +6,8 @@
   "private": true,
   "dependencies": {
     "@navsnpm/katex-expression": "^1.1.0",
-    "katex": "^0.16.9"
+    "katex": "^0.16.9",
+    "normalize.css": "^8.0.1",
+    "vis-network": "^9.1.9"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 3190f33..c04595c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -20,3 +20,13 @@ katex@^0.16.7, katex@^0.16.9:
   integrity sha512-fsSYjWS0EEOwvy81j3vRA8TEAhQhKiqO+FQaKWp0m39qwOzHVBgAUBIXWj1pB+O2W3fIpNa6Y9KSKCVbfPhyAQ==
   dependencies:
     commander "^8.3.0"
+
+normalize.css@^8.0.1:
+  version "8.0.1"
+  resolved "https://registry.yarnpkg.com/normalize.css/-/normalize.css-8.0.1.tgz#9b98a208738b9cc2634caacbc42d131c97487bf3"
+  integrity sha512-qizSNPO93t1YUuUhP22btGOo3chcvDFqFaj2TRybP0DMxkHOCTYwp3n34fel4a31ORXy4m1Xq0Gyqpb5m33qIg==
+
+vis-network@^9.1.9:
+  version "9.1.9"
+  resolved "https://registry.yarnpkg.com/vis-network/-/vis-network-9.1.9.tgz#8159b34e7c1570150fcc9296213d2b88ed169394"
+  integrity sha512-Ft+hLBVyiLstVYSb69Q1OIQeh3FeUxHJn0WdFcq+BFPqs+Vq1ibMi2sb//cxgq1CP7PH4yOXnHxEH/B2VzpZYA==