Basics:
V can now pick between [Longer Stay?] and [Shorter Visit?] when messaging River about future dates/hangouts.
First message/visit is mandatory to be the Shorter, 'vanilla' 2.1 feature.
On future messages/invites, either by V or from River, there will be the Longer/SHort choice before picking which apartment.
Picking Shorter Visit results in the usual 2.1 visit that ends when V leaves or sleeps twice.
Picking the Longer Stay results in River staying over for 2 days, and following his Romanced Enhanced schedule etc.

Ko-Fi link:
Really like my mod(s)?: Ko-Fi: Deceptious

Installation?
Unzip the main zip into "Cyberpunk 2077" folder so that the .archive and .archive.xl files end up in the "Cyberpunk 2077\archive\pc\mod" folder
Make sure the required mods are installed too!

Uninstall?
Simply delete the ReallyWantToStayAtYourHouse_River.archive and ReallyWantToStayAtYourHouse_River.archive.xl files from the "Cyberpunk 2077\archive\pc\mod" folder.

How to "use" the mod?
Simply play as usual, and when a repeat/followup Really Want To Stay At Your House quest/message is ready for the invite you can now pick between:
[Longer Stay?] for the/this original mod, 2 day visit, with River following a schedule while visiting, and hug/kiss options etc
[Shorter Visit?] for the 2.1 that ends when V leaves/sleeps twice, but has the features like dancing, mirror interactions, shower interaction, sofa cuddles etc.

Languages
English only currently, hopefully I'll be able to localise the other languages. [This is for the text message choice]

What times does he do the various things?
01:00 - 07:00 - Sleeping
07:00 - 09:00 - Showers (if not romanced, works out)
09:00 - 12:00 - Sofa
12:00 - 14:00 - Eats
14:00 - 16:00 - Drinks
16:00 - 19:00 - Sofa
19:00 - 21:00 - Eats
21:00 - 23:00 - Drinks
23:00 - 01:00 - Showers (if not romanced, works out)

What about the River Romanced Enhanced mod?
Totally compatible, that mod works on its own, no requirements when River's at home. This mod is just for at V's apartment

Compatibility with other mods?
Pet Your Cat has already been updated for full compatibility (the mods share a scene file)
Future mods like this, for the other characters, will also be compatible, part of the reason for the gap between visits is so that your other partner can stay over.

What if I want/need to talk to River and he's alseep?
Simply use the bed too, select a length of time to sleep, when you wake up he will be doing whatever he is 'scheduled' to be doing.

Will River ever get out of the shower?
River will stay in the shower until you have been near him and then moved away and not looking at him, then he will get out of the shower.

Issues/limitations:
Uninstalling the mod while he is visiting V's apartment could disable River, this can be fixed with a CET command, but just try to avoid uninstalling while he is there.
River won't be available on the phone, and he may appear unresponsive at the trailer, while he is at V's.
The 'lean' option and its conversations topics are disabled in the mod currently as there isn't a proper location for V to lean at currently.
The reset command will reset all I Really Want To Stay At Your House mods, there's no way to make it only do one, they all need to reset
together.
The current I Really Want To Stay At Your House quest stops when picking the Longer Stay option, this is expected, as there isn't a quest step (yet) just for her being there for 2 days.
There isn't currently a "I've left/gone home" message at the end of the 2 days, I might be able to add something in future.

Bugs
If anyone finds any bugs beyond what's listed in in Issues/Limitations, please let me know!
I've tested it a lot, but with it being a repeating/ongoing thing it's hard to test it for its entire expected run time