Installation on mac

[StevenLove]

Following the docs for installation doesn't work for me on macOS 12.7.1.
Here is the relevant section

3. Use sl-sh as primary shell

• install binary

sudo install -D -m 755 target/release/slosh /usr/local/bin/

• add slosh to /etc/shells and change login shell to slosh

echo /usr/local/bin/slosh | sudo tee -a /etc/shells
chsh -s /usr/local/bin/slosh

install

• sudo install -D -m 755 target/release/slosh /usr/local/bin/ doesn't work on my Mac
• install on Mac is based on BSD and differs from GNU's install in that it doesn't support the -D flag.
• We could modify the installation instructions to use mkdir -p instead.
• Alternatively, we could have separate installation instructions for Mac

$PATH

• On my machine, I need to add /usr/bin/ to my $PATH for common utils like which and less. Should we modify the default init.slosh file to include /usr/bin in the $PATH?

• We could also mention in these installation instructions for the user to consider manually migrating their ~/.bashrc and ~/.bash_profile to ~/.config/slosh/init.slosh