The possibilities for not just a fly-by: “If we launch in 2035, we arrive at Centauri A in 2092, with arrival at Centauri B roughly six days later and, finally, arrival at Proxima Centauri for operations there in a further 46 years.” https://www.centauri-dreams.org/2023/09/08/braking-at-centauri-a-bound-orbit-at-proxima/
