Well, here's one way, for a pole towards the door, outside a solo bug net -
I attached the "receiver" side of a buckle to the top of the 'mid with a short piece of grosgain, but long enough to get your hands up there when the pole is in place. (I can't remember if my 'mid had an existing hang-loop or if I added it.)
I attached an 18" section of grosgrain to the top of my bug net, with the "plug" side of the buckle threaded on. I tied in a "stopper" knot 2" from the end of the grosgrain to make sure I always had something to pull on, and to never lose the buckle. (You must attach the "adjustable" side of the buckle to the bug net. Otherwise you can't easily tension it.)
I used mitten hooks, with the flex-tab cut back so it was just a hook, attached immediately to LineLock3s, with the cord running back a corner of the bug net. That way I could hook a guyline and tension by pulling the tail coming off the LineLock. A longish tail makes this easier. With the LineLocks at the hook you can reach them from outside the 'mid for both tensioning (awkward) and release.
[I just realized that instead of a buckle at the top you could a mitten hook and LineLock, although I don't know if the "disconnect" would be as easy.]
I'd set up the 'mid, connect the bug net to my corner and midpoint guylines, and square things up.
Then I'd snap the peak buckle together (at the maximum length), and tension the bug net.
For me, every setup was a little different, so every height was different, so I needed the height/tension adjustability afforded by the buckle and the corner LineLocks. Yep, adds weight, but it was relatively easy to get a tight, square, net-off-the-'mid pitch
Take-down was a PITA if there was a lot of condensation. There was not an easy way to reach into the peak to unsnap the buckle without getting wet. The cut down mitten hooks meant I didn't have to get two hands in there to disconnect the corners.