Here's an example. This tent is not in production anymore, but was sold without poles. UL-hiking often involves finding as many uses as possible for as few items as possible.
Some tents are designed to use your hiking poles in place of some or all of the poles they would normally use. Get double duty out of the mass you carry. If you're going to carry it hundreds or thousands of miles weight becomes very important.
That's a tarp, I also use one sometimes (a simple rectangular one.) Lanshans are cheap tents that are pitched with trekking poles: https://www.aliexpress.us/item/2255800228890614.html (this is the older generation I think.) A friend of mine has one, they're good.
