zsh-autosuggestions : Fish-like autosuggestions for zsh ( https://github.com/zsh-users/zsh-autosuggestions )
zsh-fast-syntax-highlighting : Optimized and extended syntax highlighting for zsh ( https://github.com/zdharma/$_PN )
zsh-history-substring-search : ZSH port of Fish history search ( https://github.com/zsh-users/zsh-history-substring-search )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a swirl
For Paludis use this rsync : rsync://gentoo.zugaina.org/swirl-portage
If you have a problem : ycarus(-at-)zugaina.org