diff --git a/client/ui/EffectOnly.tsx b/client/ui/EffectOnly.tsx
new file mode 100644
index 0000000..08752b7
--- /dev/null
+++ b/client/ui/EffectOnly.tsx
@@ -0,0 +1,6 @@
+import * as React from 'react'
+
+export default function EffectOnly({ effect, deps }: { effect: React.EffectCallback, deps?: React.DependencyList }) {
+    React.useEffect(effect, deps)
+    return null
+}