I did it daily with a car I had bought for 50 bucks and that was not worth a new battery. Just make sure to park it on top of a hill. Push it off with a foot out the door, gain momentum and now you have one attempt.
I used to roll start my last stickshift car just for fun. 2001 Honda Civic. The inertia from just rolling down my 30ft gently sloping driveway was enough, have it in 3rd or so, pop the clutch briefly and it would start right up. A diehard stick shift colleague with a 2014-ish VW tells me this won't work on modern stickshift cars any more, don't know why.
I did a 3000km road trip with it. Lol