chore(dist): add Linux desktop integration files for installation

Desktop entry, AppStream metainfo, D-Bus service and systemd user unit
templates plus icons, adapted from ZIG/dist/linux and used by
`just install`.

dist/linux/app.desktop.in

@@ -0,0 +1,26 @@
+[Desktop Entry]
+Version=1.0
+Name=@NAME@
+Type=Application
+Comment=A terminal emulator
+TryExec=@GHOSTTY@
+Exec=@GHOSTTY@ --gtk-single-instance=true
+Icon=com.mitchellh.ghostty
+Categories=System;TerminalEmulator;
+Keywords=terminal;tty;pty;
+StartupNotify=true
+StartupWMClass=@APPID@
+Terminal=false
+Actions=new-window;
+X-GNOME-UsesNotifications=true
+X-TerminalArgExec=-e
+X-TerminalArgTitle=--title=
+X-TerminalArgAppId=--class=
+X-TerminalArgDir=--working-directory=
+X-TerminalArgHold=--wait-after-command
+DBusActivatable=true
+X-KDE-Shortcuts=Ctrl+Alt+T
+
+[Desktop Action new-window]
+Name=New Window
+Exec=@GHOSTTY@ --gtk-single-instance=true

dist/linux/com.mitchellh.ghostty.metainfo.xml.in

@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop-application">
+  <id>@APPID@</id>
+  <launchable type="desktop-id">@APPID@.desktop</launchable>
+  <name>@NAME@</name>
+  <url type="homepage">https://ghostty.org</url>
+  <url type="help">https://ghostty.org/docs</url>
+  <url type="bugtracker">https://github.com/ghostty-org/ghostty/discussions</url>
+  <url type="contact">https://ghostty.org/docs/help</url>
+  <url type="contribute">https://github.com/ghostty-org/ghostty/blob/main/CONTRIBUTING.md</url>
+  <url type="translate">https://github.com/ghostty-org/ghostty/blob/main/po/README_TRANSLATORS.md</url>
+  <url type="vcs-browser">https://github.com/ghostty-org/ghostty</url>
+  <summary>Ghostty is a fast, feature-rich, and cross-platform terminal emulator</summary>
+  <metadata_license>MIT</metadata_license>
+  <project_license>MIT</project_license>
+  <content_rating type="oars-1.1" />
+  <developer id="com.mitchellh">
+    <name>Mitchell Hashimoto</name>
+  </developer>
+  <update_contact>m@mitchellh.com</update_contact>
+  <description>
+    <p>
+      Ghostty is a terminal emulator that differentiates itself by being fast,
+      feature-rich, and native. While there are many excellent terminal
+      emulators available, they all force you to choose between speed,
+      features, or native UIs. Ghostty provides all three.
+    </p>
+  </description>
+  <recommends>
+    <control>keyboard</control>
+    <control>pointing</control>
+  </recommends>
+  <requires>
+    <!--
+      Mobile/tablet AND desktop supported
+
+      Ref: https://docs.flathub.org/docs/for-app-authors/metainfo-guidelines#display-size
+    -->
+    <display_length compare="ge">360</display_length>
+  </requires>
+  <translation type="gettext">com.mitchellh.ghostty</translation>
+
+  <!--
+    TODO: Generate manifest location data.
+
+    Ref: https://docs.flathub.org/docs/for-app-authors/metainfo-guidelines#manifest-location
+
+  <custom>
+    <value key="flathub::manifest">https://github.com/ghostty-org/ghostty/blob/<hash>/flatpak/com.mitchellh.ghostty.yml</value>
+  </custom>
+  -->
+
+  <releases>
+    <!-- TODO: Generate this automatically -->
+    <release version="1.3.1" date="2026-03-13">
+        <url type="details">https://ghostty.org/docs/install/release-notes/1-3-1</url>
+    </release>
+    <release version="1.3.0" date="2026-03-09">
+        <url type="details">https://ghostty.org/docs/install/release-notes/1-3-0</url>
+    </release>
+    <release version="1.0.1" date="2024-12-31">
+        <url type="details">https://ghostty.org/docs/install/release-notes/1-0-1</url>
+    </release>
+  </releases>
+</component>

dist/linux/dbus.service.flatpak.in

@@ -0,0 +1,3 @@
+[D-BUS Service]
+Name=@APPID@
+Exec=@GHOSTTY@ --gtk-single-instance=true --initial-window=false

dist/linux/dbus.service.in

@@ -0,0 +1,4 @@
+[D-BUS Service]
+Name=@APPID@
+SystemdService=app-@APPID@.service
+Exec=@GHOSTTY@ --gtk-single-instance=true --initial-window=false

dist/linux/ghostty_dolphin.desktop

@@ -0,0 +1,11 @@
+[Desktop Entry]
+Type=Service
+ServiceTypes=KonqPopupMenu/Plugin
+MimeType=inode/directory
+Actions=RunGhosttyDir
+
+[Desktop Action RunGhosttyDir]
+Name=Open Ghostty Here
+Icon=com.mitchellh.ghostty
+Exec=ghostty --working-directory=%F --gtk-single-instance=false
+

dist/linux/ghostty_nautilus.py

@@ -0,0 +1,66 @@
+# Adapted from wezterm: https://github.com/wez/wezterm/blob/main/assets/wezterm-nautilus.py
+# original copyright notice:
+#
+# Copyright (C) 2022 Sebastian Wiesner <sebastian@swsnr.de>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+from pathlib import Path
+import gettext
+from gi.repository import Nautilus, GObject, Gio
+
+DOMAIN = "com.mitchellh.ghostty"
+locale_dir = Path(__file__).absolute().parents[2] / "locale"
+_ = gettext.translation(DOMAIN, locale_dir, fallback=True).gettext
+
+def open_in_ghostty_activated(_menu, paths):
+    for path in paths:
+        cmd = ['ghostty', f'--working-directory={path}', '--gtk-single-instance=false']
+        Gio.Subprocess.new(cmd, Gio.SubprocessFlags.NONE)
+
+
+def get_paths_to_open(files):
+    paths = []
+    for file in files:
+        location = file.get_location() if file.is_directory() else file.get_parent_location()
+        path = location.get_path()
+        if path and path not in paths:
+            paths.append(path)
+    if 10 < len(paths):
+        # Let's not open anything if the user selected a lot of directories,
+        # to avoid accidentally spamming their desktop with dozends of
+        # new windows or tabs.  Ten is a totally arbitrary limit :)
+        return []
+    else:
+        return paths
+
+
+def get_items_for_files(name, files):
+    paths = get_paths_to_open(files)
+    if paths:
+        item = Nautilus.MenuItem(name=name, label=_('Open in Ghostty'),
+            icon='com.mitchellh.ghostty')
+        item.connect('activate', open_in_ghostty_activated, paths)
+        return [item]
+    else:
+        return []
+
+
+class GhosttyMenuProvider(GObject.GObject, Nautilus.MenuProvider):
+    def get_file_items(self, files):
+        return get_items_for_files('GhosttyNautilus::open_in_ghostty', files)
+
+    def get_background_items(self, file):
+        return get_items_for_files('GhosttyNautilus::open_folder_in_ghostty', [file])

dist/linux/systemd.service.in

@@ -0,0 +1,14 @@
+[Unit]
+Description=@NAME@
+After=graphical-session.target
+After=dbus.socket
+Requires=dbus.socket
+
+[Service]
+Type=notify-reload
+ReloadSignal=SIGUSR2
+BusName=@APPID@
+ExecStart=@GHOSTTY@ --gtk-single-instance=true --initial-window=false
+
+[Install]
+WantedBy=graphical-session.target