Our lead dev had been developing on a macbook air for a while, seemed to be more than fine even when compiling swift+obj-c projects. He only replaced it very recently since his the battery crapped out and wanted a shiny new toy :)
I'd say 128gb is too small but SSDs are only getting cheaper, you could probably get 250gb external SSD for <=£200 if you decide you still need more. (I forget, do MBA have SD cards? They would be a nice expansion option too if you don't want to carry an SSD around).
UK Apple refurbs: apple.com/uk/shop/browse/home/spec...
Our lead dev had been developing on a macbook air for a while, seemed to be more than fine even when compiling swift+obj-c projects. He only replaced it very recently since his the battery crapped out and wanted a shiny new toy :)
I'd say 128gb is too small but SSDs are only getting cheaper, you could probably get 250gb external SSD for <=£200 if you decide you still need more. (I forget, do MBA have SD cards? They would be a nice expansion option too if you don't want to carry an SSD around).
I have external hard drives that might help me with that problem