Nixos package install script with FZF

nix-install.sh

#! /usr/bin/env nix-shell
#! nix-shell -i sh -p jq awk fzf

PKG=$(nix search "$1" --json \
    | jq -r '. | to_entries | map("\(.key)|\(.value.version)|\(.value.description)") | join("\n")' \
    | awk -F "|" '{ printf "\033[34m%-40s \033[32m%-20s \033[0m%s\n", $1, $2, $3 }' \
    | fzf \
    | awk '{ print $1 }'
  )

test -n "$PKG" && nix-env -iA "$PKG"