Instead of zipties , I used some small diameter brass wire ..two wraps around, pull, twist, cut, file sharp edge...stronger and looks a little better..imo
Build good enough wheels and you don't need zip ties or anything.
If you want a really stiff wheel go with thicker spokes or do a twist spoke pattern. I built those before and they WERE stiffer than a standard wheel. Truing was a little more time consuming though since I had to adjust 2 spoke nipples several holes apart to correct any imbalance or defection. They were durable and nice looking though. BMX bikers have done that for years. Eventually a spoke may fail at the elbow or twist, but any wheel will eventually fail spokes.
Back in the day we would wrap and solder the spokes on our track bikes. The reason we did was so a broken spoke would not get caught in the chain. They supposedly helped make the wheel stronger but I really could not tell if that was the case. I still have and ride a set of wheels on my track bike that have wrapped and soldered spokes. I know the hubs I built them up with are old, pre-NOAVO RECORD Campy. I haven't had to true them in years. I did ride them on the road but now they just sit and spin on my rollers.
I am not sure that zip ties would have the same effect but who knows? I do know that wrapped and soldered looks cool.