Comment by Stratoscope

I don't use AR glasses, and I don't code on my phone, but I do like to use it for writing without having to carry a backpack.

The keyboard I use and really like is the iClever BK05:

https://www.amazon.com/dp/B018K5EJCQ

It is backlit and has a standard full size PC layout, including function keys and an "inverted T" cursor key section. The key feel is nearly as good as my ThinkPad. And it comes with a nice little stand to support your phone at a typical laptop screen angle.

It comes with a soft pouch that holds the keyboard, the phone stand, and the manual. Folded up, it fits easily in the cargo pocket of my pants.

Like the keyboard described in the article, it is not suitable for use on your lap because it doesn't lock open. That doesn't matter for me, because I need a place to put my phone anyway.

If you read the reviews, note that the "top rated critical review" has a glaring mistake:

https://www.amazon.com/gp/customer-reviews/R1RVWODQ8SCS2X?ie...

The reviewer says that the keyboard has no support at the left and right edges, so those outer sections don't lay flat and tap against the table as you type.

Wrong! This reviewer didn't notice the two little black tabs that you need to flip out so the keyboard lays flat and well supported. This is also described in the short manual.