repack.py Decoding error.

[ArgentumLupin]

I'm working with a gen 1 model and followed the README.md file to fix what storytel should have done themself.
it worked great until I tried to repack the boot.img.
When I run the python3 tools/repack.py --boot_img tmp/boot.img --out_img tmp/boot-gen1-patched.img --mods_dir mods/gen1/
I get this error on windows

Unpacking C:\Users\USER\Documents\__git\StoryTell reader\StorytelReaderMods\tmp\boot.img
Traceback (most recent call last):
  File "C:\Users\USER\Documents\__git\StoryTell reader\StorytelReaderMods\tools\unpack.py", line 27, in unpack
    info = unpack_android_bootimg(boot_img, out_dir)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\USER\Documents\__git\StoryTell reader\StorytelReaderMods\tools\utils\android.py", line 11, in unpack_android_bootimg
    return unpack_bootimg(str(boot_img), str(output_dir)).__dict__
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\USER\Documents\__git\StoryTell reader\StorytelReaderMods\tools\mkbootimg\unpack_bootimg.py", line 481, in unpack_bootimg
    boot_magic = unpack('8s', image_file.read(8))[0].decode()
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\USER\Documents\__git\StoryTell reader\StorytelReaderMods\tools\repack.py", line 82, in <module>
    main()
  File "C:\Users\USER\Documents\__git\StoryTell reader\StorytelReaderMods\tools\repack.py", line 73, in main
    repack(
  File "C:\Users\USER\Documents\__git\StoryTell reader\StorytelReaderMods\tools\repack.py", line 44, in repack
    unpack(boot_img, work_dir)
  File "C:\Users\USER\Documents\__git\StoryTell reader\StorytelReaderMods\tools\unpack.py", line 30, in unpack
    info = unpack_rockchip_krnl_bootimg(boot_img, out_dir)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\USER\Documents\__git\StoryTell reader\StorytelReaderMods\tools\utils\rockchip.py", line 20, in unpack_rockchip_krnl_bootimg
    check_krnl_initrd_img(boot_img)
  File "C:\Users\USER\Documents\__git\StoryTell reader\StorytelReaderMods\tools\utils\rockchip.py", line 12, in check_krnl_initrd_img
    magic = unpack('4s', f.read(4))[0].decode()
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte

and when I do it on Linux I get the program freezing at writing the bytes until I press enter, then it prints a new line with the next byte until it says it's done at byte 0x0000ffe0 but when I actually checked the boot-gen1-patched.img it was empty.