feat: Convert home-manager config to use Flakes

.config/home-manager/common-flake.nix

@@ -0,0 +1,190 @@
+{ config, pkgs, lib, inputs, ... }:
+
+let
+  # Get GPG signing key from host configuration, with fallback
+  gpgSigningKey = config.myConfig.gpgSigningKey or null;
+in
+
+{
+  # Allow unfree packages (like some proprietary tools)
+  nixpkgs.config.allowUnfree = true;
+
+  home.packages = [
+    pkgs.ack
+    pkgs.act
+    pkgs.awscli2
+    pkgs.dive
+    pkgs.fd
+    pkgs.fzf
+    pkgs.gh
+    pkgs.git
+    pkgs.gnupg
+    pkgs.jq
+    pkgs.kind
+    pkgs.k9s
+    pkgs.kubectl
+    pkgs.kubernetes-helm
+    pkgs.lazydocker
+    pkgs.lazygit
+    pkgs.neovim
+    pkgs.pinentry-curses  # For GPG password prompts in terminal
+    pkgs.ripgrep
+    pkgs.terraform
+    pkgs.terraform-docs
+    pkgs.tmux
+    pkgs.yq
+    pkgs.yt-dlp
+  ];
+
+  home.file = {
+    ".ackrc".text = ''
+      --pager=less -R
+      --ignore-case
+    '';
+
+    ".tmux.conf".source = ../../tmux.conf;
+
+    ".config/atuin".source = ../atuin;
+    ".config/ghostty".source = ../ghostty;
+    ".config/k9s".source = ../k9s;
+    ".config/nvim".source = ../nvim;
+  };
+
+  # Common session variables
+  home.sessionVariables = {
+    AWS_CLI_AUTO_PROMPT = "on-partial";
+    EDITOR = "nvim";
+    PAGER = "less";
+    LESS = "-R";
+  };
+
+  # Direnv integration
+  programs.direnv = {
+    enable = true;
+    nix-direnv.enable = true;
+  };
+
+  # Fish shell configuration
+  # https://nixos.wiki/wiki/Fish
+  programs.fish = {
+    enable = true;
+
+    shellInit = ''
+      # Set up direnv if available
+      if command -v direnv >/dev/null
+        direnv hook fish | source
+      end
+
+      fish_vi_key_bindings
+    '';
+
+    functions = {
+      # AWS profile switcher
+      aws-ps = {
+        description = "Switch AWS profiles";
+        body = ''
+          set -l profile $argv[1]
+          if test -z "$profile"
+            echo "Available profiles:"
+            aws configure list-profiles
+            return
+          end
+          set -gx AWS_PROFILE $profile
+          echo "Switched to AWS profile: $profile"
+        '';
+      };
+    };
+
+    shellAliases = {
+      # Modern replacements
+      cat = "bat --style=plain";
+      find = "fd";
+      grep = "rg";
+
+      # Nix flake aliases
+      nfc = "nix flake check";
+      nfu = "nix flake update";
+      nfs = "nix flake show";
+    };
+
+    plugins = [
+      {
+        name = "pure";
+        src = pkgs.fishPlugins.pure.src;
+      }
+    ];
+  };
+
+  # Git configuration
+  programs.git = {
+    enable = true;
+    userName = "Mike Priscella";
+    userEmail = "mpriscella@gmail.com";
+
+    extraConfig = {
+      init.defaultBranch = "main";
+      pull.rebase = false;
+      push.autoSetupRemote = true;
+      core.editor = "nvim";
+
+      # GPG signing configuration (conditional)
+      user.signingkey = lib.mkIf (gpgSigningKey != null) gpgSigningKey;
+      commit.gpgsign = lib.mkIf (gpgSigningKey != null) true;
+      tag.gpgsign = lib.mkIf (gpgSigningKey != null) true;
+    };
+
+    ignores = [
+      ".DS_Store"
+      "*.swp"
+      "*.swo"
+      "*~"
+      ".direnv/"
+      "result"
+      "result-*"
+    ];
+
+    aliases = {
+      st = "status";
+      co = "checkout";
+      br = "branch";
+      ci = "commit";
+      di = "diff";
+      unstage = "reset HEAD --";
+      last = "log -1 HEAD";
+      visual = "!gitk";
+      graph = "log --oneline --graph --decorate --all";
+      # Show files ignored by git
+      ign = "ls-files -o -i --exclude-standard";
+    };
+  };
+
+  # GPG configuration
+  programs.gpg = {
+    enable = true;
+    settings = {
+      # Use a long keyid format
+      keyid-format = "long";
+      # Show fingerprints
+      with-fingerprint = true;
+      # Disable greeting message
+      no-greeting = true;
+      # Use the GPG agent
+      use-agent = true;
+    };
+  };
+
+  # Home Manager needs a bit of information about you and the
+  # paths it should manage.
+  programs.home-manager.enable = true;
+
+  # Enable man page support
+  programs.man.enable = true;
+
+  services.gpg-agent = {
+    enable = true;
+    enableFishIntegration = true;
+    pinentry.package = pkgs.pinentry-curses;
+    defaultCacheTtl = 28800;  # 8 hours
+    maxCacheTtl = 86400;      # 24 hours
+  };
+}