Rooting A Nook Tablet

I have an older Nook Tablet 8 gb Model BNTV250 A, version 1.4.3

I want to root it and I read all about doing that, but the problem for me is that the Cyanogenmod (whatever that is) is no longer available, and I wondered if anyone here knows about these CMs I guess they call them? I need to somehow find them to do what needs to be done to make my Root my Nook and make it more like a regular tablet, if that's even possible. I think it is, it's just the "know-how".

Here is a note from a guy that was helping me, and this was what he found out on the Xda forum:

"I've just come away from another thread in which the poster decried the disappearance of all the Cyanogenmod stuff. I knew they had died but I didn't realize everything would disappear so fast...

That means you need to source the most critical component from somewhere. One option is a new post on this board for the critical files. There is also a fellow who was developing his own related ROMs, both internal and SD card versions. I'll search for that and add it to this post in a bit."

Can anyone help me with this, I'd really like to give it a go if I know where to find the tools, and directions, I need to do it.

Thanks in advance for any help/feedback, denise

 

Can't help you with rooting but here's the succesor to CyanogenMod - LineageOS.
https://download.lineageos.org/

You should find help at the XDA Developers website.
https://forum.xda-developers.com/lineage

 

Maybe that's the one the guy was talking about on XDA @Eldon?? Hope so, and I will check it out. Thank you, I should have come here before, denise