init

modules/home-manager/shells/default.nix

@@ -0,0 +1,10 @@
+{ ...
+}:
+
+{
+  imports = [
+    ./direnv.nix
+    ./fish.nix
+    ./zellij.nix
+  ];
+}

modules/home-manager/shells/direnv.nix

@@ -0,0 +1,24 @@
+{ lib
+, config
+, ...
+}:
+
+let
+  cfg = config.custom.shells.direnv;
+in
+{
+  options.custom.shells.direnv = {
+    enable = lib.mkEnableOption "Whether to enable the direnv shell environment tool.";
+  };
+
+  config = lib.mkIf cfg.enable {
+    programs.direnv = {
+      enable = true;
+      nix-direnv.enable = true;
+
+      enableBashIntegration = config.programs.bash.enable;
+      enableFishIntegration = config.programs.fish.enable;
+    };
+  };
+}
+

modules/home-manager/shells/fish.nix

@@ -0,0 +1,93 @@
+{ lib
+, config
+, pkgs
+, ...
+}:
+
+let
+  cfg = config.custom.shells.fish;
+in
+{
+  options.custom.shells.fish = {
+    enable = lib.mkEnableOption "Whether to enable the Fish shell";
+  };
+
+  config = lib.mkIf cfg.enable {
+    programs = {
+      fish = {
+        enable = true;
+
+        # Disable annoying welcome message.
+        shellInit = ''
+          set fish_greeting
+        '';
+
+        shellAliases = {
+          e = "$EDITOR";
+
+          ".." = "cd ..";
+          "..." = "cd ../..";
+          "...." = "cd ../../..";
+          "....." = "cd ../../../..";
+          "......" = "cd ../../../../..";
+
+          tree = "${pkgs.eza}/bin/eza --color=always --tree";
+          ls = "${pkgs.eza}/bin/eza --color=always --group-directories-first --icons";
+          ll = "${pkgs.eza}/bin/eza -la --icons --octal-permissions --group-directories-first";
+          l = "${pkgs.eza}/bin/eza --long --all --group --group-directories-first --icons";
+          lx = "${pkgs.eza}/bin/eza -lbhHigUmuSa@ --time-style=long-iso --git --color-scale --color=always --group-directories-first --icons";
+
+          cat = "${pkgs.bat}/bin/bat -Pp";
+        };
+      };
+
+      starship = {
+        enable = true;
+
+        settings = {
+          character = {
+            success_symbol = "[[](mauve) ❯](maroon)";
+            error_symbol = "[❯](red)";
+            vimcmd_symbol = "[❮](green)";
+          };
+
+          directory = {
+            truncation_length = 4;
+            style = "bold pink";
+          };
+
+          palette = "catppuccin_mocha";
+
+          palettes.catppuccin_mocha = {
+            rosewater = "#f5e0dc";
+            flamingo = "#f2cdcd";
+            pink = "#f5c2e7";
+            mauve = "#cba6f7";
+            red = "#f38ba8";
+            maroon = "#eba0ac";
+            peach = "#fab387";
+            yellow = "#f9e2af";
+            green = "#a6e3a1";
+            teal = "#94e2d5";
+            sky = "#89dceb";
+            sapphire = "#74c7ec";
+            blue = "#89b4fa";
+            lavender = "#b4befe";
+            text = "#cdd6f4";
+            subtext1 = "#bac2de";
+            subtext0 = "#a6adc8";
+            overlay2 = "#9399b2";
+            overlay1 = "#7f849c";
+            overlay0 = "#6c7086";
+            surface2 = "#585b70";
+            surface1 = "#45475a";
+            surface0 = "#313244";
+            base = "#1e1e2e";
+            mantle = "#181825";
+            crust = "#11111b";
+          };
+        };
+      };
+    };
+  };
+}

modules/home-manager/shells/zellij.nix

@@ -0,0 +1,21 @@
+{ config
+, lib
+, pkgs
+, ...
+}:
+
+let
+  cfg = config.custom.shells.zellij;
+in
+{
+  options.custom.shells.zellij = {
+    enable = lib.mkEnableOption "Enable the Zellij multiplexer.";
+  };
+
+  config = lib.mkIf cfg.enable {
+    programs.zellij = {
+      enable = true;
+    };
+  };
+}
+