This line works for my Raspberry Pi.

source /usr/share/bash-completion/completions/fzf
source /usr/share/doc/fzf/examples/key-bindings.bash

That was the help of ChatGPT, I’ll leave it here as a bonus info.

To source fzf on your Raspberry Pi OS, you’ll need to add it to your shell configuration file. This ensures that fzf is available every time you open a new terminal session. Follow these steps:

  1. Open your shell configuration file:

    • If you’re using bash, this will likely be ~/.bashrc.
    • If you’re using zsh, this will likely be ~/.zshrc.

    You can open these files with a text editor like nano:

    nano ~/.bashrc

    or

    nano ~/.zshrc

  2. Add the fzf initialization script: Add the following line to the end of your shell configuration file:

    [ -f ~/.fzf.bash ] && source ~/.fzf.bash

    or for zsh:

    [ -f ~/.fzf.zsh ] && source ~/.fzf.zsh

    This line checks if the fzf script exists and sources it if it does.

  3. Save and close the file:

    • If you’re using nano, press CTRL + X, then Y, then ENTER.

  4. Reload your shell configuration: To apply the changes immediately without needing to restart your terminal, run:

    source ~/.bashrc

    or

    source ~/.zshrc

Now, fzf should be available in your terminal. You can test it by typing fzf and seeing if it launches the fuzzy finder.