Stop trying to remember the exact name of the nix flake output you want to use !

This little script simplify flake output selection using fzf. We assume that you have nix configured with nix-command and flake available, add the following to your /etc/nix/nix.conf:

experimental-features = nix-command flakes

In a directory containing a flake.nix file, run:

nix run github:jfroche/flake-fzf

It can also build remote flake if you provide a flake url:

nix run github:jfroche/flake-fzf github:Mic92/nix-ci-build

Inside the fzf interface, you can use:

• enter to select or build the selected flake output
• tab to filter packages corresponding to your system
• shift-tab to filter nixos system configurations

flake-fzf accepts the following parameters:

• --print will print the selected flake output instead of building it. This is useful if you want to use it in a shell and remember the command line (see below).

Select a flake output, then press enter to build it.

If you are using zsh here is a simple keybind to run it when pressing ctrl-l:

bindkey -s "^L" 'nix run github:jfroche/flake-fzf^M'

If you want to keep the command line in your history, you can use this instead:

bindkey -s "^L" 'print -z $(nix run github:jfroche/flake-fzf . --print)^M'

This will run the command and replace the command line with the selected flake output.

Of course if you installed flake-fzf in your PATH, you can use it directly:

bindkey -s "^L" 'print -z $(flake-fzf . --print)^M'