diff --git a/ctl/new.cc b/ctl/new.cc
new file mode 100644
index 000000000..0ee5a461b
--- /dev/null
+++ b/ctl/new.cc
@@ -0,0 +1,116 @@
+// -*- mode:c++; indent-tabs-mode:nil; c-basic-offset:4; coding:utf-8 -*-
+// vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi
+//
+// Copyright 2024 Justine Alexandra Roberts Tunney
+//
+// Permission to use, copy, modify, and/or distribute this software for
+// any purpose with or without fee is hereby granted, provided that the
+// above copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+// WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+// AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+// DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+// PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+// TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+#include "new.h"
+
+#include "libc/mem/mem.h"
+
+using ctl::align_val_t;
+
+namespace {
+
+constexpr auto a1 = align_val_t(1);
+
+} // namespace
+
+void*
+operator new(size_t n, align_val_t a)
+{
+    void* p;
+    if (!(p = memalign(static_cast<size_t>(a), n))) {
+        __builtin_trap();
+    }
+    return p;
+}
+
+void*
+operator new[](size_t n, ctl::align_val_t a)
+{
+    return operator new(n, a);
+}
+void*
+operator new(size_t n)
+{
+    return operator new(n, a1);
+}
+void*
+operator new[](size_t n)
+{
+    return operator new(n, a1);
+}
+
+void*
+operator new(size_t, void* p)
+{
+    return p;
+}
+void*
+operator new[](size_t, void* p)
+{
+    return p;
+}
+
+void
+operator delete(void* p) noexcept
+{
+    free(p);
+}
+void
+operator delete[](void* p) noexcept
+{
+    free(p);
+}
+void
+operator delete(void* p, ctl::align_val_t) noexcept
+{
+    free(p);
+}
+void
+operator delete[](void* p, ctl::align_val_t) noexcept
+{
+    free(p);
+}
+void
+operator delete(void* p, size_t) noexcept
+{
+    free(p);
+}
+void
+operator delete[](void* p, size_t) noexcept
+{
+    free(p);
+}
+void
+operator delete(void* p, size_t, ctl::align_val_t) noexcept
+{
+    free(p);
+}
+void
+operator delete[](void* p, size_t, ctl::align_val_t) noexcept
+{
+    free(p);
+}
+
+void
+operator delete(void*, void*) noexcept
+{
+}
+void
+operator delete[](void*, void*) noexcept
+{
+}
diff --git a/ctl/new.h b/ctl/new.h
new file mode 100644
index 000000000..15b84488e
--- /dev/null
+++ b/ctl/new.h
@@ -0,0 +1,30 @@
+// -*-mode:c++;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8-*-
+// vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi
+#ifndef COSMOPOLITAN_CTL_NEW_H_
+#define COSMOPOLITAN_CTL_NEW_H_
+
+// clang-format off
+
+namespace ctl {
+
+enum class align_val_t : size_t {};
+
+} // namespace ctl
+
+void* operator new(size_t);
+void* operator new[](size_t);
+void* operator new(size_t, ctl::align_val_t);
+void* operator new[](size_t, ctl::align_val_t);
+void* operator new(size_t, void*);
+void* operator new[](size_t, void*);
+
+void operator delete(void*) noexcept;
+void operator delete[](void*) noexcept;
+void operator delete(void*, ctl::align_val_t) noexcept;
+void operator delete[](void*, ctl::align_val_t) noexcept;
+void operator delete(void*, size_t) noexcept;
+void operator delete[](void*, size_t) noexcept;
+void operator delete(void*, size_t, ctl::align_val_t) noexcept;
+void operator delete[](void*, size_t, ctl::align_val_t) noexcept;
+
+#endif // COSMOPOLITAN_CTL_NEW_H_
diff --git a/ctl/optional.h b/ctl/optional.h
index e3214da31..110bd5eec 100644
--- a/ctl/optional.h
+++ b/ctl/optional.h
@@ -2,6 +2,7 @@
 // vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi
 #ifndef COSMOPOLITAN_CTL_OPTIONAL_H_
 #define COSMOPOLITAN_CTL_OPTIONAL_H_
+#include "new.h"
 #include <__utility/forward.h>
 #include <__utility/move.h>
 #include <__utility/swap.h>
@@ -129,7 +130,8 @@ class optional
     }
 
   private:
-    union {
+    union
+    {
         T value_;
     };
     bool present_;
diff --git a/ctl/vector.h b/ctl/vector.h
index 0b77b08fc..8c9660909 100644
--- a/ctl/vector.h
+++ b/ctl/vector.h
@@ -2,6 +2,7 @@
 // vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi
 #ifndef COSMOPOLITAN_CTL_OPTIONAL_H_
 #define COSMOPOLITAN_CTL_OPTIONAL_H_
+#include "new.h"
 #include <__utility/forward.h>
 #include <__utility/move.h>
 #include <__utility/swap.h>
diff --git a/test/ctl/optional_test.cc b/test/ctl/optional_test.cc
index 49133e7d9..c00f30d5b 100644
--- a/test/ctl/optional_test.cc
+++ b/test/ctl/optional_test.cc
@@ -18,10 +18,10 @@
 
 #include "ctl/optional.h"
 
-#include <new>
-
 #include "ctl/string.h"
 
+#include "libc/runtime/runtime.h"
+
 // #include <optional>
 // #include <string>
 // #define ctl std
diff --git a/test/ctl/vector_test.cc b/test/ctl/vector_test.cc
index 01d2301f7..214eef454 100644
--- a/test/ctl/vector_test.cc
+++ b/test/ctl/vector_test.cc
@@ -19,7 +19,6 @@
 #include "ctl/vector.h"
 
 #include <cosmo.h>
-#include <new>
 
 #include "ctl/string.h"