Enable multiple users to install software using homebrew

I installed homebrew using my other user account (which I use during work), but it is impossible to install software from my newly created personal account:

$ brew install unrar
Error: Cannot write to /usr/local/Cellar

A ls -dl /usr/local/Cellar/ shows that the directory is owned by my other user account.

How do I configure homebrew to allow multiple users to install software?

Solution 1:

set umaskfor each user first. (.basrc or .profile or .bash_profile)

umask 0002 # group write permission

then give write permission for groups via /usr/local recursively:

sudo chmod -R g+w /usr/local/

then change the owner to staff

sudo chgrp -R staff /usr/local

now, each user, who is in staff group can use brew install and other brew related operations... Mostly every user is in that group.

Solution 2:

In case your account has root / su / sudo access, you can try the following workaround:

su - myother_user_account -c "brew install ..."

sudo alternative:

sudo -u myother_user_account brew install ...

A handy shell alias (for .bashrc/.zshrc/...):

alias brew="sudo -u myother_user_account brew"

Solution 3:

On the homebrew wiki, it mentions that you can install it anywere, try having local installations for each user.