diff --git a/site/404.typ b/site/404.typ
new file mode 100644
index 0000000..c53cded
--- /dev/null
+++ b/site/404.typ
@@ -0,0 +1,7 @@
+#import "@preview/calepin:0.1.7": *
+
+#show: page-layout.with(title: "Not Found")
+
+= 404
+
+Page not found.
diff --git a/site/calepin.toml b/site/calepin.toml
new file mode 100644
index 0000000..61e5329
--- /dev/null
+++ b/site/calepin.toml
@@ -0,0 +1,17 @@
+title = "Yggdrasil"
+description = "Knowledge Base"
+theme = "calepin"
+
+pdf = false
+
+[static]
+include = ["assets/**"]
+
+[sidebar]
+fold = false
+
+[[sidebar.section]]
+title = "Start"
+  [[sidebar.section.item]]
+  target = "index.typ"
+
diff --git a/site/index.typ b/site/index.typ
new file mode 100644
index 0000000..9780d06
--- /dev/null
+++ b/site/index.typ
@@ -0,0 +1,7 @@
+#import "@preview/calepin:0.1.7": *
+
+#show: page-layout.with(title: "Yggdrasil")
+
+= Yggdrasil
+
+Welcome to Yggdrasil, the central knowledge base.