REI (and walmart) sell a tent repair kit for about $5
its looks like the patch repair kit that comes with those aweful Coleman inflatable air mattresses. basically a tiny squeeze tube of a glue, a round peel sticker 2" or 3" diameter, or a rectangular 2"x4" peel and stick.
I just used the stickers, without the glue or sewing.
Decades ago a wild bonfire near my tent, resulted in dime sized burn holes, that mosquitoes exploited... that's how I fixed it.