[Tilted Irish Kilt]

"Each year the first blooms are male.
Later the plants produce a mix of male and female flowers.
However, most squash plants don’t like Texas summer heat."

Exactly true !
Excellent advice !
Try to provide plants some mid-day shade (shade cloth, cedar shingles, row covers, anything to prevent sun from 11AM-2:30 PM etc.),
or even closer to the house (use the house to shade the plants),
or consider relocating future plantings to where they will get some high-afternoon shading from trees.
Regardless, have a water supply handy for anywhere in Texas for this summer (per: Joe Bastardi @weatherbell.com).

[nagant]

For years this is how I grew squash and tomatoes. Both veggies love the nutrient film technique ....actually too much, because they expand until their roots clog and dam the NFT channels.

https://www.youtube.com/watch?v=aqTZYMqXUZ4

Note that these are relatively young plants in the video, and have not had time yet to clog their channels. Done properly NFT squash and tomatoes require extremely wide channels with panned bottoms to let nutrient flow regardless of root crowding.