Initial dendritic rewrite

modules/features/zsh.nix

@@ -0,0 +1,56 @@
+{
+  flake.modules.nixos.zsh = {
+    programs.zsh.enable = true;
+
+    environment.pathsToLink = [ "/share/zsh" ];
+  };
+
+  flake.modules.homeManager.zsh =
+    { config, ... }:
+    {
+      programs.zsh = {
+        enable = true;
+        enableCompletion = false;
+        antidote = {
+          enable = true;
+          plugins = [
+            "Aloxaf/fzf-tab"
+          ];
+        };
+        autosuggestion.enable = true;
+        dotDir = "${config.xdg.configHome}/zsh";
+        history = {
+          append = true;
+          findNoDups = true;
+          ignoreSpace = true;
+          ignoreDups = true;
+          saveNoDups = true;
+          share = true;
+        };
+        historySubstringSearch = {
+          enable = true;
+          searchDownKey = "^p";
+          searchUpKey = "^n";
+        };
+        initContent = ''
+          # disable sort when completing `git checkout`
+          zstyle ':completion:*:git-checkout:*' sort false
+          # set descriptions format to enable group support
+          # NOTE: don't use escape sequences (like '%F{red}%d%f') here, fzf-tab will ignore them
+          zstyle ':completion:*:descriptions' format '[%d]'
+          # preview directory's content when completing cd or zoxide
+          zstyle ':fzf-tab:complete:cd:*' fzf-preview 'ls --color $realpath'
+          zstyle ':fzf-tab:complete:__zoxide_z:*' fzf-preview 'ls --color $realpath'
+          # custom fzf flags
+          # NOTE: fzf-tab does not follow FZF_DEFAULT_OPTS by default
+          zstyle ':fzf-tab:*' fzf-flags --color=fg:1,fg+:2 --bind=tab:accept
+          # switch group using `<` and `>`
+          zstyle ':fzf-tab:*' switch-group '<' '>'
+        '';
+        syntaxHighlighting.enable = true;
+        shellAliases = {
+          ff = "fastfetch";
+        };
+      };
+    };
+}