be a bit smarter about fzf module

modules/basic-tools/default.nix

@@ -0,0 +1,119 @@
+{ lib, config, pkgs, inputs, ... }:
+
+{
+  imports = [
+    ./fzf.nix
+  ];
+
+  environment.systemPackages = with pkgs; [
+    bat
+    fd
+    file
+    fzf
+    git
+    gnupg
+    htop
+    irssi
+    killall
+    neovim
+    ripgrep
+    tealdeer
+    traceroute
+    tcpdump
+    tree
+    (aspellWithDicts (ps: with ps; [ en en-science en-computers ru de ]))
+    exfatprogs
+    nmap
+    bind
+    nnn
+    ranger
+    man-pages
+    wlsunset
+    screen
+  ];
+
+  nix = {
+    extraOptions = ''
+      experimental-features = nix-command flakes
+    '';
+  };
+
+  # override default nix shell nixpkgs# behaviour to use current flake lock
+  nix.registry =
+    let flakes = lib.filterAttrs (name: value: value ? outputs) inputs.self.inputs;
+    in builtins.mapAttrs (name: v: { flake = v; }) flakes;
+
+  nix.nixPath = lib.mapAttrsToList (name: value: "${name}=${value.outPath}") inputs.self.inputs;
+
+
+  programs.tmux = {
+    enable = true;
+    keyMode = "vi";
+    escapeTime = 0;
+    historyLimit = 50000;
+    aggressiveResize = true;
+    terminal = "tmux-256color";
+  };
+
+  # set appropriate environ variables
+  environment.variables = {
+    EDITOR = "nvim";
+    PAGER = "less -F";
+  };
+
+  environment.shellAliases = {
+    ls = "ls --color=auto";
+    l = "ls -l";
+    la = "ls -la";
+    ll = "ls -lah";
+    lt = "ls --tree";
+    vim = "nvim";
+    vf = "$EDITOR $(fzf)";
+    vff = "$EDITOR $(ls|fzf)";
+    mutt = "neomutt";
+    grep = "grep --color=auto";
+  };
+
+  users.defaultUserShell = pkgs.zsh;
+  programs.zsh = {
+    enable = true;
+    enableCompletion = true;
+    syntaxHighlighting.enable = true;
+    interactiveShellInit = ''
+      bindkey -e
+      export HISTFILE="$HOME/.zsh_history"
+      export HISTSIZE=10000000
+      export SAVEHIST=10000000
+      # allow comments
+      setopt interactivecomments
+    '';
+    promptInit = ''
+      source ${pkgs.liquidprompt}/share/zsh/plugins/liquidprompt/liquidprompt
+    '';
+  };
+
+  environment.etc.liquidpromptrc = {
+    text = ''
+      LP_ENABLE_SSH_COLORS=1
+      LP_ENABLE_TITLE=1
+      LP_ENABLE_SCREEN_TITLE=1
+      LP_ENABLE_TEMP=0
+      LP_ENABLE_SVN=0
+      LP_BATTERY_THRESHOLD=15
+      LP_SSH_COLORS=1
+    '';
+  };
+
+  programs.iftop.enable = true;
+  programs.mosh.enable = true;
+
+  programs.screen.screenrc = ''
+    defscrollback 10000
+
+    startup_message off
+
+    hardstatus on
+    hardstatus alwayslastline
+    hardstatus string "%w"
+  '';
+}

modules/basic-tools/fzf.nix

@@ -0,0 +1,10 @@
+{ lib, config, ... }: {
+  # integrate fzf into shell, >23.05 only
+  programs =
+    if (lib.toInt (lib.elemAt (lib.splitVersion config.system.nixos.release) 0) >= 23) then {
+      fzf = {
+        keybindings = true;
+        fuzzyCompletion = true;
+      };
+    } else { };
+}