megasync-bin: add version 6.4.0.2

Binary repack of MEGA's official Debian 13 package, bundling the main
app plus the dolphin (KDE) and thunar (Xfce) file-manager integration
plugins in one package. Links system Qt5, bundles ffmpeg; REQUIRES="".

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

8 files changed, 217 insertions, 5 deletions

diff --git a/.extras/docs/superpowers/specs/2026-07-06-megasync-bin-slackbuild-design.md b/.extras/docs/superpowers/specs/2026-07-06-megasync-bin-slackbuild-design.md
index 945d1cd..9ec60fb 100644
--- a/.extras/docs/superpowers/specs/2026-07-06-megasync-bin-slackbuild-design.md
+++ b/.extras/docs/superpowers/specs/2026-07-06-megasync-bin-slackbuild-design.md
@@ -114,19 +114,19 @@ thunar:
 ## Repo integration
 
 - `nvchecker.toml`: track the GitHub release tag.
-  Tags look like `v6.4.0.2_Linux`; strip the `v` prefix and `_Linux`
-  suffix to get `6.4.0.2` with a regex transform:
+  The latest release is tagged `v6.4.0.2_Linux`; use `use_latest_release`
+  (not `use_max_tag` — MEGAsync's tag set includes old non-Linux tags that
+  sort wrong), then strip the `v` prefix and `_Linux` suffix:
   ```toml
   [megasync-bin]
   source = "github"
   github = "meganz/MEGAsync"
-  use_max_tag = true
+  use_latest_release = true
   prefix = "v"
   from_pattern = '_Linux$'
   to_pattern = ''
   ```
-  (Verify against `nvchecker` output when wiring it up; adjust the pattern
-  if upstream tag format differs.)
+  Verified: resolves to `6.4.0.2`.
 - README version table: add a `megasync-bin` row.
 
 ## Testing
diff --git a/.extras/nvchecker.toml b/.extras/nvchecker.toml
index d514369..535904f 100644
--- a/.extras/nvchecker.toml
+++ b/.extras/nvchecker.toml
@@ -125,3 +125,12 @@ source = "gitea"
 gitea = "gitea/tea"
 use_max_tag = true
 prefix = "v"
+
+# Latest release is tagged like v6.4.0.2_Linux; strip v prefix and _Linux.
+[megasync-bin]
+source = "github"
+github = "meganz/MEGAsync"
+use_latest_release = true
+prefix = "v"
+from_pattern = "_Linux$"
+to_pattern = ""
diff --git a/README.md b/README.md
index 1f04480..39c7135 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,7 @@ Each package lives in its own top-level subfolder:
 | firefly-cli | ✅ | not tested | ❌ | 0.4.1 | 0.4.1 |
 | gitea-cli | ✅ | ✅ | ❌ | 0.14.2 | 0.14.2 |
 | UrbanTerror | ✅ | ✅ | ✅ [UrbanTerror](https://slackbuilds.org/repository/15.0/games/UrbanTerror/) | 4.3.4 | 4.3.4 |
+| megasync-bin | not tested | not tested | ❌ | 6.4.0.2 | 6.4.0.2 |
 
 ---
 
diff --git a/megasync-bin/README b/megasync-bin/README
new file mode 100644
index 0000000..fc46f9d
--- /dev/null
+++ b/megasync-bin/README
@@ -0,0 +1,29 @@
+MEGAsync is the desktop sync client for MEGA (mega.nz) cloud storage. It
+keeps local folders in sync with your MEGA account, supports selective
+sync and backups, and runs as a system-tray application.
+
+This is a binary repack of MEGA's official prebuilt Debian package: MEGA
+does not ship a Slackware build, and building from source pulls in the
+MEGA SDK plus a large set of vcpkg-managed dependencies at build time.
+The binary links against Slackware's own Qt5 and bundles its ffmpeg
+libraries under /opt/megasync/lib, so no extra deps are required.
+
+The package also bundles the file-manager integration plugins:
+
+  * dolphin (KDE) - sync-status emblems and context-menu actions
+  * thunar (Xfce) - context-menu actions
+
+These plugins are loaded only by their respective file manager; if you
+do not run dolphin or thunar they simply sit unused.
+
+Two configuration files are installed as .new so they never overwrite an
+admin-tuned copy:
+
+  /etc/udev/rules.d/99-megasync-udev.rules.new
+  /etc/sysctl.d/99-megasync-inotify-limit.conf.new
+
+The sysctl file raises the inotify watch limit, useful when syncing
+large folder trees. To activate a file, remove the .new suffix and
+reload (udevadm control --reload / sysctl --system).
+
+This package is x86_64 only; MEGA ships no 32-bit build.
diff --git a/megasync-bin/doinst.sh b/megasync-bin/doinst.sh
new file mode 100644
index 0000000..6174f87
--- /dev/null
+++ b/megasync-bin/doinst.sh
@@ -0,0 +1,25 @@
+config() {
+  NEW="$1"
+  OLD="$(dirname $NEW)/$(basename $NEW .new)"
+  # If there's no config file by that name, mv it over:
+  if [ ! -r $OLD ]; then
+    mv $NEW $OLD
+  elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then
+    # toss the redundant copy
+    rm $NEW
+  fi
+  # Otherwise, we leave the .new copy for the admin to consider...
+}
+
+config etc/udev/rules.d/99-megasync-udev.rules.new
+config etc/sysctl.d/99-megasync-inotify-limit.conf.new
+
+if [ -x /usr/bin/update-desktop-database ]; then
+  /usr/bin/update-desktop-database -q usr/share/applications >/dev/null 2>&1
+fi
+
+if [ -e usr/share/icons/hicolor/icon-theme.cache ]; then
+  if [ -x /usr/bin/gtk-update-icon-cache ]; then
+    /usr/bin/gtk-update-icon-cache -f -q usr/share/icons/hicolor >/dev/null 2>&1
+  fi
+fi
diff --git a/megasync-bin/megasync-bin.SlackBuild b/megasync-bin/megasync-bin.SlackBuild
new file mode 100644
index 0000000..dfb75af
--- /dev/null
+++ b/megasync-bin/megasync-bin.SlackBuild
@@ -0,0 +1,115 @@
+#!/bin/bash
+
+# Slackware build script for megasync (binary repack)
+
+# Copyright 2026 danix <danix@danix.xyz>
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+cd $(dirname $0) ; CWD=$(pwd)
+
+PRGNAM=megasync-bin
+SRCNAM=megasync
+VERSION=${VERSION:-6.4.0.2}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+PKGTYPE=${PKGTYPE:-tgz}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
+  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
+  exit 0
+fi
+
+# Upstream ships x86_64 only.
+if [ "$ARCH" != "x86_64" ]; then
+  echo "$ARCH is not supported: MEGAsync is x86_64 only."
+  exit 1
+fi
+
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+LIBDIRSUFFIX="64"
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+
+# Extract the three upstream .deb packages (main app + dolphin + thunar
+# file-manager integration) into $PKG.  Each .deb is an ar archive holding a
+# data.tar.* payload with the real file tree.
+for deb in \
+  megasync-Debian_13_amd64.deb \
+  dolphin-megasync-Debian_13_amd64.deb \
+  thunar-megasync-Debian_13_amd64.deb ; do
+  ( cd $TMP && ar x $CWD/$deb data.tar.xz && tar xf data.tar.xz -C $PKG && rm -f data.tar.xz )
+done
+
+# Move the Debian multiarch libdir to the Slackware libdir.  The main binary
+# links system Qt5 and bundles its ffmpeg under /opt/megasync/lib (RUNPATH),
+# so only the integration plugins live under lib/x86_64-linux-gnu.
+if [ -d $PKG/usr/lib/x86_64-linux-gnu ]; then
+  mkdir -p $PKG/usr/lib${LIBDIRSUFFIX}
+  cp -a $PKG/usr/lib/x86_64-linux-gnu/* $PKG/usr/lib${LIBDIRSUFFIX}/
+  rm -rf $PKG/usr/lib
+fi
+
+# Ship the udev rule and sysctl inotify-limit config as .new so an existing
+# admin-tuned file is never clobbered on upgrade.
+for conf in \
+  etc/udev/rules.d/99-megasync-udev.rules \
+  etc/sysctl.d/99-megasync-inotify-limit.conf ; do
+  [ -f "$PKG/$conf" ] && mv "$PKG/$conf" "$PKG/$conf.new"
+done
+
+# Strip binaries and bundled libraries (RUNPATH is preserved by strip).
+find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" \
+  | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+
+# Docs: drop the Debian packaging cruft, keep upstream copyright.
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+if [ -f $PKG/usr/share/doc/megasync/copyright ]; then
+  cp -a $PKG/usr/share/doc/megasync/copyright $PKG/usr/doc/$PRGNAM-$VERSION/
+fi
+rm -rf $PKG/usr/share/doc
+cat $CWD/README > $PKG/usr/doc/$PRGNAM-$VERSION/README
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+cat $CWD/doinst.sh > $PKG/install/doinst.sh
+
+chown -R root:root $PKG
+find -L $PKG \
+  \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+   -o -perm 511 \) -exec chmod 755 {} \+ -o \
+  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+   -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \+
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
diff --git a/megasync-bin/megasync-bin.info b/megasync-bin/megasync-bin.info
new file mode 100644
index 0000000..04c6fb9
--- /dev/null
+++ b/megasync-bin/megasync-bin.info
@@ -0,0 +1,14 @@
+PRGNAM="megasync-bin"
+VERSION="6.4.0.2"
+HOMEPAGE="https://mega.io/desktop"
+DOWNLOAD="https://mega.nz/linux/repo/Debian_13/amd64/megasync-Debian_13_amd64.deb \
+          https://mega.nz/linux/repo/Debian_13/amd64/dolphin-megasync-Debian_13_amd64.deb \
+          https://mega.nz/linux/repo/Debian_13/amd64/thunar-megasync-Debian_13_amd64.deb"
+MD5SUM="c2f596ea2043da9613104a47934957d8 \
+        0917cb242b0f388f1ab01f6d44b76891 \
+        5270041c4b5b23990d522390fafa551e"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="danix"
+EMAIL="danix@danix.xyz"
diff --git a/megasync-bin/slack-desc b/megasync-bin/slack-desc
new file mode 100644
index 0000000..76b57d7
--- /dev/null
+++ b/megasync-bin/slack-desc
@@ -0,0 +1,19 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+            |-----handy-ruler------------------------------------------------------|
+megasync-bin: megasync-bin (desktop sync client for MEGA cloud storage)
+megasync-bin:
+megasync-bin: MEGAsync keeps local folders in sync with your MEGA (mega.nz)
+megasync-bin: account, supports selective sync and backups, and runs from the
+megasync-bin: system tray.
+megasync-bin:
+megasync-bin: This is a binary repack of MEGA's official Debian package. It also
+megasync-bin: bundles the dolphin (KDE) and thunar (Xfce) file-manager
+megasync-bin: integration plugins.
+megasync-bin:
+megasync-bin: Homepage: https://mega.io/desktop