我就在 nixos 上用 zimfw。一点问题都没有。当然， setup 稍微复杂一些，如果决定 allin nixos 了倒是用 nix 来管理 zsh 插件就行了，没必要用 zimfw。但是我还是需要用 非 nix 的环境，所以还是决定用 zimfw 来管理。zsh 的插件都是至少十几年的稳定的老插件了，也不担心 breaking change。
同理，emacs 也完全可以用 package.el 一点问题也没有，不需要用 nix 装 emacs 的包。就一套 emacs 配置完全可以在不同的环境里面用。
在 你的 zsh.nix 里面这么写:
initContent = let
zshConfigBeforeInit = lib.mkOrder 500
''
[ -f "$HOME/.zsh-preload.sh" ] && source ~/.zsh-preload.sh
[ -f "$HOME/.zimfw-setup.sh" ] && source ~/.zimfw-setup.sh'';
zshConfigAfterInit = lib.mkOrder 1200
''[ -f "$HOME/.zsh-postload.sh" ] && source ~/.zsh-postload.sh'';
in
lib.mkMerge [ zshConfigBeforeInit zshConfigAfterInit ];
然后 zimfw.setup 里面你写 zimfw bootstrap code 的前半部分，大概就长这样:
ZIM_HOME=${ZDOTDIR:-${HOME}}/.zim
# Download zimfw plugin manager if missing.
if [[ ! -e ${ZIM_HOME}/zimfw.zsh ]]; then
if (( ${+commands[curl]} )); then
curl -fsSL --create-dirs -o ${ZIM_HOME}/zimfw.zsh \
https://github.com/zimfw/zimfw/releases/latest/download/zimfw.zsh
else
mkdir -p ${ZIM_HOME} && wget -nv -O ${ZIM_HOME}/zimfw.zsh \
https://github.com/zimfw/zimfw/releases/latest/download/zimfw.zsh
fi
fi
# Install missing modules, and update ${ZIM_HOME}/init.zsh if missing or outdated.
if [[ ! ${ZIM_HOME}/init.zsh -nt ${ZDOTDIR:-${HOME}}/.zimrc ]]; then
source ${ZIM_HOME}/zimfw.zsh init -q
fi
# Initialize modules.
source ${ZIM_HOME}/init.zsh
然后 zsh-postload.sh 里面写 zimfw setup 后需要的 code，例如
#!/bin/zsh
# Sensible configuration setup by zimfw.
# relocate these settings to the user configuration
# ------------------------------
# Post-init module configuration
# ------------------------------
#
# zsh-history-substring-search
#
zmodload -F zsh/terminfo +p:terminfo
# Bind ^[[A/^[[B manually so up/down works both before and after zle-line-init
for key ('^[[A' '^P' ${terminfo[kcuu1]}) bindkey ${key} history-substring-search-up
for key ('^[[B' '^N' ${terminfo[kcud1]}) bindkey ${key} history-substring-search-down
for key ('k') bindkey -M vicmd ${key} history-substring-search-up
for key ('j') bindkey -M vicmd ${key} history-substring-search-down
unset key
# }}} End configuration added by Zim install