diff --git a/binder/apt.txt b/binder/apt.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ea5cebf71fef443cc6bf94d30eb083c22ab3faf9
--- /dev/null
+++ b/binder/apt.txt
@@ -0,0 +1 @@
+default-jre-headless
diff --git a/binder/postBuild b/binder/postBuild
new file mode 100755
index 0000000000000000000000000000000000000000..4bb30884c5792bf02e0a23972d004dc900c3559a
--- /dev/null
+++ b/binder/postBuild
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+./gradlew installKernelSpec -PkernelspecUserInstall=true