For those of us with a heavily customized environment, eg lots of shell aliases, prompt, functions, etc, it’s useful to be able to have all of that within a nix shell. After some digging, I came up with this:
nix-shell --command '. ~/.bash_profile; return' https://holochain.love
This likely works with other shells than bash, but haven’t tried there.
Personally, I alias this, so I just type love, after adding this to my ~/.bash_profile :
alias love="nix-shell --command '. ~/.bash_profile; return' https://holochain.love"