You will use goats or a push reel mower and eat your bugs.
My newest neighbor of not quite a year did the reel mower thing for a few weeks and for whatever reason went to a small gas powered.
I used one for a while myself in the new pad for half of a summer. The front yard grass, not much of a problem.
The back yard grass if it grew any was like trying cut hay. Thick stuff. Figure 90-100 degree summer heat, and I gave up myself.
Back when producing stock footage was worth doing and me kind of giving up the idea of the old timey mower.
https://www.shutterstock.com/video/clip-11045114-antique-lawnmower-on-green-grass-tilted-back