[CODING HELP] VSHMAIN.PRX replacement

[Torch]

I'm trying to make a module to replace vshmain.prx to do some stuff, and then launch the original vshmain_real.prx

#include <pspkernel.h>
#include <pspthreadman.h>
#include <pspdebug.h>
#include <stdio.h>

PSP_MODULE_INFO("Password", 0, 1, 1);
PSP_MAIN_THREAD_ATTR(THREAD_ATTR_USER);
//PSP_HEAP_SIZE_KB(1024);

#define printf    pspDebugScreenPrintf
#define VSHMAIN "flash0:/vsh/module/vshmain_real.prx"

SceUID load_module(const char *path, int flags, int type)
{
    SceKernelLMOption option;
    SceUID mpid;

    /* If the type is 0, then load the module in the kernel partition, otherwise load it
       in the user partition. */
    if (type == 0) {
        mpid = 1;
    } else {
        mpid = 2;
    }

    memset(&option, 0, sizeof(option));
    option.size = sizeof(option);
    option.mpidtext = mpid;
    option.mpiddata = mpid;
    option.position = 0;
    option.access = 1;

    return sceKernelLoadModule(path, flags, type > 0 ? &option : NULL);
}

int main_thread(SceSize args, void *argp)
{
    pspDebugScreenInit();
     printf("Arguement Size = %d\n",args);
         
    SceUID mod;
    mod = load_module(VSHMAIN, 0, 0);
    
    if (mod > 0)
    {
        sceKernelStartModule(mod, args, argp, NULL, NULL);
    }
    else
    {
         printf("Start failed %x",mod);
    }
    
    sceKernelExitDeleteThread(0);

    return 0;
}

int module_start(SceSize args, void *argp)
{
    SceUID th;
    th = sceKernelCreateThread("main_thread", main_thread, 0x20, 0x10000, 0, NULL);

    if (th >= 0)
    {
        sceKernelStartThread(th, args, argp);
    }

    return 0;
}

TARGET = password
OBJS = main.o

INCDIR =
CFLAGS = -O2 -G0 -Wall
CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS = $(CFLAGS)

BUILD_PRX = 1
PSP_FW_VERSION = 390

LIBDIR =
LIBS =
LDFLAGS =

EXTRA_TARGETS = EBOOT.PBP
PSP_EBOOT_TITLE = Password
#PSP_EBOOT_ICON="icon0.png"
#PSP_EBOOT_PIC1="pic1.png"
#PSP_EBOOT_SND0="snd0.at3"

PSPSDK=$(shell psp-config --pspsdk-path)
include $(PSPSDK)/lib/build_prx.mak

sceKernelStartModule always returns 0x80020148 (unsupported PRX type). I tried launching a vshmain_real.prx from ms0: as well because I read that in user mode you can't start a module from flash0:.

And is there any way get my program's arguments in the form SceSize args, void *argp by using only int main(....) instead of creating a module_start(SceSize args, void *argp) and creating another thread?
-= Double Post =-
I tried it with pspSdkLoadStartModule but it also gives 0x80020148.