Ask them. Peter by email and Leon by WhatsApp. Their details are on the forum

Agreed. That's ridiculously shitty of them.
Has South park cable network vibes of like "ooo, you didn't buy your product directly from you and now you have a problem with it and it's clearly something we made and we sold it to a reseller? Right right, oh we're sorry but we're not going to provide any service nor honour guarantee on that product you see"

And the disaster continues. 3rd dead er9 RD. again, randomly and for no reason. Was riding with my friend, who really hasn't used his new bike much, less than ten rides for sure. Dry, 20 Celsius, smooth asphalt, largely flat. 35km into the ride, his RD dies like the other 2. So there's my er9 on which I've put almost 4k km that's working fine (sometimes it charges weird, but at least it's working), and the fifth one isn't being used because the front wheel on that bike broke during a crash and we're still waiting for a replacement.
At which point can I preemptively ask for extra spare RDs? I'm happy to beta test, but we can't be 6 weeks without derailleurs every time one kills itself.

Aluminium then. you can find cheap ass frames on Alibaba, you can order one as sample.
In carbon, to be significantly cheaper than velobuild is asking for trouble. We know velobuild is safe, but they are running a tight ship. they dont really do discounts, they dont really do marketing, they are a lean operator, they clearly compete on price.
If you buy the cheapest carbon frame you find on aliexpress, there's so much that can go wrong, the risk of time & energy you may have to waste trying to get shit to work...
China will absolutely sell you trash if you ask for it.

Not familiar with the name Delihea.

I note the shop listed on AliX on Oct23 only. Their business licence says ... ELECTRONIC commerce, established Mar21. So...
There are a few YT videos of people reviewing Delihea bikes, from much before 2023. From people buying on AliX.
Can't find a website for Delihea.

the ck-two that takes 32C looks VERY interesting. But that frame ticks all the boxes for 2024, i'd say.

I dont think i've seen this frame before. The other one with 28C looks much less future proof and relevant in 2024.

Nothing is going to be unanimous.
However, people who ride Carbonda are quite consistently happy with them, but they're more on the gravel end of things.
Over the years velobuild has been improving their game a lot, doesnt seem to be the gamble it may have been before.
Lightcarbon generally has very good reputation, Yishun too. They are / were / still probably are the same group somehow, or at least related parties, and Yishun OEMs for big names (it's spelled out on their website).
SP Cycle /  Tideace / Haideli are about the same price point as velobuild, it's a bit confusing because they do open mould frames and i think they're all related parties but i'm not sure, it gets confusing. Either way, they dont seem to be very popular here because few post about them, but i havent found anyone saying bad things. The R025-SL for eg looks like a VERY compelling bike (but is 30C only). I may have bought one had it taken 32C.

I'm curious with the hydraulic hoses on fully internal frames. On semi-internal frames you can just detach the stem/bar from the bike and pack the bar sideways next to the frame in a box.

On fully internal frames, is this not an option for travel? Do you have to detach the hoses for travel? Sounds like a big hassle if that's the case.

That's maybe the biggest drawback of fully integrated bikes: you can't travel with them w/o major headache. There are rigid bike boxes where you dont have to detach the bars, precisely because of that (VERY expensive and take a ton of space when not in use).
It is changing a bit in that you have an increasing number of options that are fully integrated AND allow to detach the stem w/o unplugging everything, but it will take years to trickle down. There's a question of stiffness too: my integrated cockpit is super stiff. If tomorrow they start selling a version with more convenient cable integration, it may be a pool noodle.

On Shimano failing, the Nero podcast that just came out, Chris flew across Australia for a race and his di2 died at the start of the race.
I feel everyone who has SRAM has several stories about groups running out of juice. The batteries on SRAM are notoriously bad.
The documentary Icarus that was so interesting about the guy doping for the haute route event. He dnfed because his di2 died.
Maybe the morale of the story is to run mechanical.
But my hope is that L-TWOO will improve their products. Maybe in 3 years they will make stuff that's just as reliable as the big guys. I hope so.