I was also wondering if lubing the cable would be a noticeable improvement. I have not done it in the past. And as I was browsing AliX i found these prelubed cable guides with some dust caps: https://www.aliexpress.com/item/4001046329415.html

I do not know how useful the dust caps are but their description was just too good to not to try them. 
(It was just funny to read how many iterations they had before finding the right structure for the end caps.)

The frame has full outer cabling so my plan is to run the cables in these prelubed guides through the full length of the bike with these dust caps at end. My expectation is that dust will not really get into the system with these steps. Time will tell.

Wow... a travel case for your bolts.

Yeah, none of the listings picture show the packaging so it is quite surprising the first time you receive it.

Did you tell them ?
I didn't like it either, and complained.
If we are many they may improve this, and save some money too.

That is a very good point and have not crossed my mind. I will also explain to them what my opinion is about their packaging.

I am using a pair of 52-36 absolute black oval chainrings for 4 years now. I could not find anything on ali at that time so I bought this used set on ebay. I have not looked if there is anything good on ali nowadays.

I have switched stock ultegra 6800 chainrings to these absolute blacks. On the very first ride I felt some difference. I cannot describe it but it felt somehow different. Then the feeling went away after maybe a couple of hundred meters. My commuter has regular round rings and when I switch between that and my best bike with oval chainrings I cannot feel any difference anymore.

One thing did change and it seems like it is here to stay which is occasional chain drops when switching from the big ring to the small one. I could not figure out when it is happening because it is so random and rare-ish. But I have never had it with the ultegra rings. The indexing is correct and everything.

Before buying them I did a lot of research and found multiple forum posts on the internet describing similar problems. One of them suggested to get a chain catcher. I followed that advice and I am happy that I did. I would definitely suggest the same to protect that precious carbon frame.

I am also thinking of going down the same route (single base colour + stickers). I have recently found https://www.dyedbro.com/. They sell custom printed frame protectors and have a couple of designs I like. But they can also print something personalised too.

These are not particularly small so I am not sure if you had something like this in mind. But I thought I will share it in case someone does look for something similar.

apparently they do not transmit well through carbon

Do you have more info about this? My EW-WU111 Di2 transmitter is in my carbon road bikes downtube. I just tried to connect to it over bluetooth with my phone from circa 3-4 meters and connected quickly. Did not notice any visible lag because I was further away. And I think the airtags also use ble (although Apple does like to come up with proprietary solutions).

I do not have yet any airtags but planning to use them with my best bike. I actually wanted to use two. One in a fairly visible location like what Snacks posted or under the saddle. And one somewhere totally hidden. This way finding the obvious one might provide some false safety feeling to the thief while I still have a chance to recover my bike.

My hidden position would be inside the downtube from the bottom bracket end. I would use one of these strips:
https://www.amazon.co.uk/Command-17205-12PK-Picture-Hanging-17205-12pk/dp/B00OI6NQUI

I have a bb86 bottom bracket so to make the yearly airtag battery replacement simpler I would get one of those screw together bb from aliexpress.