custom build - update process same as official?

Hi,

i build libreelec for myself (branch libreelec-8.0).

My Question:

if later comes an update to 8.1 for example, is the update process the same as from the official builds, like from menu or stick??
I think yes, but i want to be sure.
I have only an extra package inside - nothing else is changed!

I dont want build it every time again.

thanks guys.

OK, Thank you. Then it is not worth it for me.
(Only for the nice extra NFS package from escalade: LibreELEC.tv/packages/escalade/network/unfs3 at le8 · escalade/LibreELEC.tv · GitHub)

Too bad.
[hr]
can somebody help me to make this package as an addon?

I changed PKG_IS_ADDON to "yes" and executed: PROJECT=Generic ARCH=x86_64 ./scripts/create_addon unfs3

but i got:
*** unsupported package format. please convert your package ***