bash bind and zsh bindkey are similar enough that you can probably just llm convert it to bash.

curl https://raw.githubusercontent.com/chmouel/zsh-select-with-lf... | llm -x "Convert this zsh script to bash" > maybe-bash.sh

seems to work for me.

I'm on Fish and the integrations don't work as-is for me either. However, the tool itself is quite slick!