diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2fa6b5c..3a8b9a9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -76,22 +76,22 @@ file(GLOB platform_headers
 set(photon_libc_sources ${photon_libc_sources} ${malloc_sources} ${platform_sources})
 set(photon_libc_headers ${photon_libc_headers} ${platform_headers})
 
-add_framework(Photon STATIC
+add_framework(photon STATIC
     BUNDLE_ID net.doorstuck.photon
     SOURCES ${photon_libc_sources} ${photon_libc_headers}
     HEADERS ${CMAKE_CURRENT_BINARY_DIR}/sysroot/usr/include/*)
 
-bundle_compile_options(Photon PRIVATE -ffreestanding -nostdlib -fPIC -fPIE)
-bundle_link_libraries(Photon ${photon_platform_libs})
-bundle_link_frameworks(Photon ${photon_platform_frameworks})
+bundle_compile_options(photon PRIVATE -ffreestanding -nostdlib -fPIC -fPIE)
+bundle_link_libraries(photon ${photon_platform_libs})
+bundle_link_frameworks(photon ${photon_platform_frameworks})
 
-bundle_include_directories(Photon PRIVATE
+bundle_include_directories(photon PRIVATE
     ${CMAKE_CURRENT_SOURCE_DIR}/photon/libc/include
     ${CMAKE_CURRENT_SOURCE_DIR}/photon/libc/sys/${platform}/
     ${CMAKE_CURRENT_BINARY_DIR}/sysroot/usr/include)
 
 foreach (platform_include_dir ${photon_platform_extra_include_dirs})
-    bundle_include_directories(Photon
+    bundle_include_directories(photon
         ${CMAKE_CURRENT_SOURCE_DIR}/photon/libc/sys/${platform}/${platform_include_dir})
 endforeach (platform_include_dir)
 
@@ -102,20 +102,20 @@ add_custom_target(local-root
         ${CMAKE_CURRENT_BINARY_DIR}
         ${platform} ${machine})
 
-bundle_add_dependencies(Photon local-root crt)
+bundle_add_dependencies(photon local-root crt)
 
-add_custom_command(TARGET Photon POST_BUILD
+add_custom_command(TARGET photon POST_BUILD
     COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/scripts/add-framework-crt.sh
-        ${CMAKE_CURRENT_BINARY_DIR}/Photon.framework
+        ${CMAKE_CURRENT_BINARY_DIR}/photon.framework
         ${CMAKE_CURRENT_BINARY_DIR})
 
 if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-    bundle_link_libraries(Photon gcc)
+    bundle_link_libraries(photon gcc)
 endif ()
 
 if (TARGET early-sysroot)
     # We are being built as part of asbestOS, make sure the sysroot is there.
-    bundle_add_dependencies(Photon early-sysroot)
+    bundle_add_dependencies(photon early-sysroot)
 endif ()
 
 if (PHOTON_TESTS EQUAL 1)
diff --git a/photon/libc/include/stdio.h b/photon/libc/include/stdio.h
index c6d2a15..7ca7374 100644
--- a/photon/libc/include/stdio.h
+++ b/photon/libc/include/stdio.h
@@ -29,11 +29,7 @@ extern FILE *stderr;
 
 extern FILE *fopen(const char *path, const char *mode);
 extern FILE *freopen(const char *path, const char *mode, FILE *fp);
-#ifdef __magenta__
-extern FILE *fdopen(mx_handle_t fd, const char *mode);
-#else
 extern FILE *fdopen(int fd, const char *mode);
-#endif
 extern int fclose(FILE *fp);
 extern int fflush(FILE *fp);
 extern size_t fread(void *ptr, size_t size, size_t count, FILE *fp);
diff --git a/photon/libc/stdio/fdopen.c b/photon/libc/stdio/fdopen.c
index 45bc696..6a50396 100644
--- a/photon/libc/stdio/fdopen.c
+++ b/photon/libc/stdio/fdopen.c
@@ -3,11 +3,7 @@
 #include <stdlib.h>
 #include <__fio.h>
 
-#ifdef __magenta__
-FILE *fdopen(mx_handle_t fd, const char *mode)
-#else
 FILE *fdopen(int fd, const char *mode)
-#endif
 {
     struct __io_file *fp = malloc(sizeof(*fp));
     memset(fp, 0x0, sizeof(*fp));
diff --git a/photon/libc/sys/magenta/__fio.h b/photon/libc/sys/magenta/__fio.h
index 2c8287e..16a0b77 100644
--- a/photon/libc/sys/magenta/__fio.h
+++ b/photon/libc/sys/magenta/__fio.h
@@ -1,8 +1,6 @@
 #ifndef SYS_MAGENTA___FIO_H_
 #define SYS_MAGENTA___FIO_H_
 
-#include <magenta.h>
-
 #define __FIO_BUFSZ 512
 
 #if defined(__cplusplus)
@@ -12,13 +10,13 @@ extern "C" {
 struct __io_file {
     char buf[__FIO_BUFSZ];
     unsigned long buf_idx;
-    mx_handle_t handle;
+    int fd;
     char err;
     char unget;
 };
 
 extern int __fileno(struct __io_file *f);
-extern void __fio_init(mx_handle_t in, mx_handle_t out, mx_handle_t err);
+extern void __fio_init(int in, int out, int err);
 extern unsigned int __fio_read(struct __io_file *f, char *buf, unsigned int sz);
 extern unsigned int __fio_write(struct __io_file *f, const char *buf, unsigned int sz);
 extern unsigned int __fio_flush(struct __io_file *f);
@@ -27,7 +25,7 @@ extern int __fio_ungetc(struct __io_file *f, char c);
 
 extern int __fio_fopen(const char *path, const char *mode, struct __io_file *out);
 extern int __fio_fclose(struct __io_file *in);
-extern int __fio_fdopen(mx_handle_t fd, const char *mode, struct __io_file *out);
+extern int __fio_fdopen(int fd, const char *mode, struct __io_file *out);
 
 #if defined(__cplusplus)
 }
diff --git a/photon/libc/sys/magenta/__heap.h b/photon/libc/sys/magenta/__heap.h
index 5b49cdf..e6c3ae2 100644
--- a/photon/libc/sys/magenta/__heap.h
+++ b/photon/libc/sys/magenta/__heap.h
@@ -3,6 +3,6 @@
 
 #include "__init.h"
 
-extern int __heap_init(struct __proc_start_info *info);
+extern int __heap_init();
 
 #endif
diff --git a/photon/libc/sys/magenta/__init.h b/photon/libc/sys/magenta/__init.h
index 2b959ca..5b9d6d4 100644
--- a/photon/libc/sys/magenta/__init.h
+++ b/photon/libc/sys/magenta/__init.h
@@ -1,16 +1,4 @@
 #ifndef SYS_MAGENTA_INIT_H_
 #define SYS_MAGENTA_INIT_H_
 
-#include <magenta.h>
-
-struct __proc_start_info {
-    mx_handle_t in;
-    mx_handle_t out;
-    mx_handle_t err;
-    int argc;
-    const char **argv;
-    mx_handle_t heap;
-    void *heap_map_base;
-};
-
 #endif
diff --git a/photon/libc/sys/magenta/config.cmake b/photon/libc/sys/magenta/config.cmake
index 5375890..85667a9 100644
--- a/photon/libc/sys/magenta/config.cmake
+++ b/photon/libc/sys/magenta/config.cmake
@@ -1 +1 @@
-set(photon_platform_frameworks Magenta)
+set(photon_platform_frameworks magenta)
diff --git a/photon/libc/sys/magenta/fio.c b/photon/libc/sys/magenta/fio.c
index 4eb0344..d40413f 100644
--- a/photon/libc/sys/magenta/fio.c
+++ b/photon/libc/sys/magenta/fio.c
@@ -9,43 +9,16 @@ struct __io_file *stdin = &__stdin;
 struct __io_file *stdout = &__stdout;
 struct __io_file *stderr = &__stderr;
 
-static mx_flags_t flags_from_mode(const char *r)
+static int flags_from_mode(const char *r)
 {
-    mx_flags_t out = 0;
-
-    while (*r) {
-        switch (*r) {
-        case 'r':
-            out |= MX_FILE_READ;
-            break;
-        case 'w':
-            out |= MX_FILE_WRITE;
-            break;
-        case '+':
-            out |= (MX_FILE_READ | MX_FILE_WRITE);
-            break;
-        case 'a':
-            out |= MX_FILE_APPEND;
-            break;
-        case 'b':
-            /* TODO */
-            break;
-        default:
-            out = 0;
-            return out;
-        }
-
-        r++;
-    }
-
-    return out;
+    return 0;
 }
 
-void __fio_init(mx_handle_t in, mx_handle_t out, mx_handle_t err)
+void __fio_init(int in, int out, int err)
 {
-    __stdin.handle = in;
-    __stdout.handle = out;
-    __stderr.handle = err;
+    __stdin.fd = in;
+    __stdout.fd = out;
+    __stderr.fd = err;
 }
 
 int __fio_fopen(const char *path, const char *mode, struct __io_file *fp)
@@ -58,14 +31,14 @@ int __fio_fclose(struct __io_file *fp)
     return -1;
 }
 
-int __fio_fdopen(mx_handle_t fd, const char *mode, struct __io_file *fp)
+int __fio_fdopen(int fd, const char *mode, struct __io_file *fp)
 {
     return -1;
 }
 
 int __fileno(struct __io_file *f)
 {
-    return (int)f->handle;
+    return (int)f->fd;
 }
 
 unsigned int __fio_read(struct __io_file *f, char *buf, unsigned int sz)
diff --git a/photon/libc/sys/magenta/heap.c b/photon/libc/sys/magenta/heap.c
index 95d78cc..04fff00 100644
--- a/photon/libc/sys/magenta/heap.c
+++ b/photon/libc/sys/magenta/heap.c
@@ -1,4 +1,4 @@
-#include <magenta.h>
+#include <magenta/types.h>
 #include <stdint.h>
 #include <stddef.h>
 #include "__init.h"
@@ -9,9 +9,9 @@
 static uintptr_t heap_start = 0;
 static uintptr_t heap_end = 0;
 static size_t heap_sz = 0;
-static mx_handle_t heap_segment = MX_NULL_HANDLE;
+static mx_handle_t heap_vmo = MX_NULL_HANDLE;
 
-int __heap_init(struct __proc_start_info *info)
+int __heap_init()
 {
 #if 0
     heap_start = (uintptr_t)info->heap_map_base;
diff --git a/photon/libc/sys/magenta/init.c b/photon/libc/sys/magenta/init.c
index e300fb0..613d2ff 100644
--- a/photon/libc/sys/magenta/init.c
+++ b/photon/libc/sys/magenta/init.c
@@ -4,9 +4,8 @@
 
 extern int main(int, const char **);
 
-int __crt_init(struct __proc_start_info *info)
+/* TODO magenta/procargs.h protocol */
+int __crt_init(void *arg)
 {
-    __fio_init(info->in, info->out, info->err);
-    __heap_init(info);
-    return main(info->argc, info->argv);
+    return main(0, 0);
 }
diff --git a/photon/libc/sys/magenta/sys/_fconst.h b/photon/libc/sys/magenta/sys/_fconst.h
index 21e0975..1733158 100644
--- a/photon/libc/sys/magenta/sys/_fconst.h
+++ b/photon/libc/sys/magenta/sys/_fconst.h
@@ -1,12 +1,10 @@
 #ifndef SYS_LINUX_SYS__FCONST_H_
 #define SYS_LINUX_SYS__FCONST_H_
 
-#include <magenta.h>
-
 #define __FILENAME_MAX 1024
 
-#define __SEEK_SET MX_SEEK_START
-#define __SEEK_CUR MX_SEEK_CURRENT
-#define __SEEK_END MX_SEEK_END
+#define __SEEK_SET 0
+#define __SEEK_CUR 1
+#define __SEEK_END 2
 
 #endif