nix-develop.nvim

nix develop for neovim

:NixDevelop
:NixDevelop .#foo
:NixDevelop --impure

:NixShell
:NixShell nixpkgs#hello

devenv integration

:DevenvShell
:DevenvShell --profile foo

riff (unmaintained) integration

:RiffShell
:RiffShell --project-dir foo

See nix-develop.txt for more information