How do I cache brew install node?

[GeoffreyPlitt]

@levlaz I haven’t seen any documentation saying that you can only cache home folder. Here’s an example in Circle’s docs that shows the opposite is true:

Installing android build tools 23.0.2

this adds roughly 21 seconds to the build not 1-2 mins… or even 4 like some people are saying… if you are redownloading the build tools each build you DO NOT have circleci configured properly. the dependencies are supposed to be cached. My build runs a step called restore cache for 17 seconds, but after that 17 seconds the same script that usually takes over 1 minute to download dependencies just does a filesystem check that the cache has not been invalidated and is present and continues on, t…

Please advise, thanks.