chore(deps): add macOS SDK version 26

- Added support for macOS SDK version 26 to the list of supported SDKs.
- Reformatted flake.nix with nixfmt.

Author: jimeh

flake.nix

@@ -6,84 +6,100 @@
     flake-utils.url = "github:numtide/flake-utils";
   };
 
-  outputs = { self, nixpkgs, flake-utils }:
-    flake-utils.lib.eachDefaultSystem (system:
+  outputs =
+    {
+      self,
+      nixpkgs,
+      flake-utils,
+    }:
+    flake-utils.lib.eachDefaultSystem (
+      system:
       let
         pkgs = nixpkgs.legacyPackages.${system};
 
         # List of supported macOS SDK versions.
-        sdk_versions = [ "11" "12" "13" "14" "15" ];
+        sdk_versions = [
+          "11"
+          "12"
+          "13"
+          "14"
+          "15"
+          "26"
+        ];
         default_sdk_version = "11";
 
-        mkDevShell = { macos_version ? default_sdk_version }:
+        mkDevShell =
+          {
+            macos_version ? default_sdk_version,
+          }:
           let
             apple_sdk = pkgs.${"apple-sdk_${macos_version}"};
           in
-            pkgs.mkShell {
-              # Package list specifically excludes ncurses, so that we link
-              # against the system version of ncurses. This ensures emacs' TUI
-              # works out of the box without the user having to manually set
-              # TERMINFO in the shell before launching emacs.
-              packages = with pkgs; [
-                apple_sdk
-                autoconf
-                bash
-                cairo
-                clang
-                coreutils
-                curl
-                darwin.DarwinTools # sw_vers
-                dbus
-                expat
-                findutils
-                gcc
-                gettext
-                giflib
-                git
-                gmp
-                gnumake
-                gnupatch
-                gnused
-                gnutar
-                gnutls
-                harfbuzz
-                jansson
-                jq
-                lcms2
-                libffi
-                libgccjit
-                libiconv
-                libjpeg
-                libpng
-                librsvg
-                libtasn1
-                libunistring
-                libwebp
-                libxml2
-                mailutils
-                nettle
-                pkg-config
-                python313Packages.dmgbuild
-                rsync
-                ruby
-                sqlite
-                texinfo
-                time
-                tree-sitter
-                which
-                xcbuild
-                zlib
-              ];
+          pkgs.mkShell {
+            # Package list specifically excludes ncurses, so that we link
+            # against the system version of ncurses. This ensures emacs' TUI
+            # works out of the box without the user having to manually set
+            # TERMINFO in the shell before launching emacs.
+            packages = with pkgs; [
+              apple_sdk
+              autoconf
+              bash
+              cairo
+              clang
+              coreutils
+              curl
+              darwin.DarwinTools # sw_vers
+              dbus
+              expat
+              findutils
+              gcc
+              gettext
+              giflib
+              git
+              gmp
+              gnumake
+              gnupatch
+              gnused
+              gnutar
+              gnutls
+              harfbuzz
+              jansson
+              jq
+              lcms2
+              libffi
+              libgccjit
+              libiconv
+              libjpeg
+              libpng
+              librsvg
+              libtasn1
+              libunistring
+              libwebp
+              libxml2
+              mailutils
+              nettle
+              pkg-config
+              python313Packages.dmgbuild
+              rsync
+              ruby
+              sqlite
+              texinfo
+              time
+              tree-sitter
+              which
+              xcbuild
+              zlib
+            ];
 
-              shellHook = ''
-                export CC=clang
-                export MACOSX_DEPLOYMENT_TARGET="${macos_version}.0"
-                export DEVELOPER_DIR="${apple_sdk}"
-                export NIX_LIBGCCJIT_VERSION="${pkgs.libgccjit.version}"
-                export NIX_LIBGCCJIT_ROOT="${pkgs.libgccjit.outPath}"
-                export BUNDLE_WITHOUT=development
-              '';
-            };
+            shellHook = ''
+              export CC=clang
+              export MACOSX_DEPLOYMENT_TARGET="${macos_version}.0"
+              export DEVELOPER_DIR="${apple_sdk}"
+              export NIX_LIBGCCJIT_VERSION="${pkgs.libgccjit.version}"
+              export NIX_LIBGCCJIT_ROOT="${pkgs.libgccjit.outPath}"
+              export BUNDLE_WITHOUT=development
+            '';
+          };
 
         # Generate an attrset of shells for each macOS SDK version.
         versionShells = builtins.listToAttrs (
@@ -93,10 +109,10 @@
           }) sdk_versions
         );
       in
-        {
-          devShells = versionShells // {
-            default = mkDevShell {};
-          };
-        }
+      {
+        devShells = versionShells // {
+          default = mkDevShell { };
+        };
+      }
     );
 }