For some reason there was a malloc in os_read

src/os/os.c

@@ -550,7 +550,7 @@ fn s8_t os_read(ma_arena_t *arena, s8_t path) {
         fseek(fd, 0, SEEK_END);
         long size = ftell(fd);
         fseek(fd, 0, SEEK_SET);
-        char *string = malloc(size + 1);
+        char *string = ma_push_array(arena, char, size + 1);
         fread(string, size, 1, fd);
         fclose(fd);