An update: that Aliexpress link doesn't work anymore, but that style is still available on eBay and Aliexpress, just search for "mesh tent".
My blog software changed, the correct link is now:
https://bkhome.org/news/201606/bug-net- ... elers.htmlIn that blog post, I considered really minimalist shelter by using that mesh bivi and the Sea to Summit tarp poncho. Great if can use that poncho for two purposes. Photo experimenting with erecting the tarp poncho:

What prompted this update, is I stumbled across these 24.8cm lengths of carbon fibre tube, intended for drone construction:
https://www.aliexpress.com/item/33056914311.htmlThat length is very convenient, as I can lay the segments flat in my backpack or lumbar pack. I ordered 4 pieces of the 4x3 and the 6x4.
Maybe just two segments each end of the tarp poncho would do the trick, held together with a small length of aluminium tube.
But of course the devil is in the detail. As you climb into and out of the mesh bivi from the top, one side of the tarp would have to be lifted up.
Following my own advice, searching for "mesh tent" on Aliexpress, this is one hit:
https://www.aliexpress.com/item/32833751469.html
...ha ha, yes, minimalist!
...but I wonder, if I could replace that tub with some walls, make it a bit higher...
Note, there is discussion here about tent poles, with links to folding carbon fibre poles:
viewtopic.php?f=58&t=32613#p407517