--- a/playground/main.c	Thu Dec 25 20:10:46 2025 -0800
+++ b/playground/main.c	Sun Dec 28 20:34:22 2025 -0800
@@ -1,20 +1,33 @@
 #include <stdio.h>
+#include <stdlib.h>
 
-struct Node {
-  char *value;
-  struct Node *left;
-  struct Node *right;
-};
+typedef struct {
+  float foo;
+  float bar;
+} Values;
 
-void *recurr(struct Node *root, int depth)
-{
-  if (depth)
-    return;
-  root.left = 
-}
+int capacity = 20;
 
 int main()
 {
-  struct Node root = {}
-  struct Node **queue = {}
+  int a;
+  void *p = malloc(sizeof(Values) + (sizeof(int) * 20));
+  int *b = (int *)(p + sizeof(Values));
+  Values *c = (Values *)p;
+  c->foo = 10.0f;
+  c->bar = 12.0f;
+  for (int i = 0; i < 20; i++)
+    b[i] = i;
+
+  for (int i = 0; i < 20; i++)
+    printf("values is %i\n", b[i]);
+
+  printf("c->foo: %f\n", c->foo);
+  printf("c->bar: %f\n", c->bar);
+
+  Values *d = (Values *)b - 1;
+  printf("d->foo: %f\n", d->foo);
+  printf("d->bar: %f\n", d->bar);
+
+  return 0;
 }