Screw it, I added light

Assets/ShadowUpdater.cs

@@ -0,0 +1,16 @@
+using UnityEngine;
+using UnityEngine.Rendering.Universal;
+
+public class ShadowUpdater : MonoBehaviour
+{
+    public bool restrictSelfShadows = false;
+    private void Start()
+    {
+        gameObject.AddComponent<ShadowCaster2D>();
+        if (restrictSelfShadows)
+        {
+            ShadowCaster2D shadowCaster = GetComponent<ShadowCaster2D>();
+            shadowCaster.selfShadows = false;
+        }
+    }
+}