diff --git a/network/onyx/README b/network/onyx/README
new file mode 100644
index 0000000000..09e0db7232
--- /dev/null
+++ b/network/onyx/README
@@ -0,0 +1,7 @@
+Onyx provides access to the Gopher protocol to the OverbiteNX extension
+for Firefox.  It is necessary to circumvent the fact that Firefox's
+WebExtensions framework does not provide TCP/IP access to extensions.
+
+You need to have Firefox (version 60 or above) with the OverbiteNX
+extension installed to be able to make use of this package.  It will
+build without either, but it will be useless.
diff --git a/network/onyx/onyx.SlackBuild b/network/onyx/onyx.SlackBuild
new file mode 100644
index 0000000000..9a367557a6
--- /dev/null
+++ b/network/onyx/onyx.SlackBuild
@@ -0,0 +1,101 @@
+#!/bin/sh -e
+
+# Slackware build script for onyx
+
+# Copyright 2018 Kurt M. Weber Riverside, CA
+# 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.
+
+VERSION=${VERSION:-0.9.2.0}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+
+# The source extracts to the "overbitenx" directory, but the actual utility
+# we're building is "onyx" (the rest of overbitenx is a Firefox extension that the
+# user should obtain through the usual interface), so we've got to keep the
+# two names straight.
+
+PRGNAM=onyx
+APP=overbitenx
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+CWD=$(pwd)
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O3 -march=i586 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "i686" ]; then
+  SLKCFLAGS="-O3 -march=i686 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  SLKCFLAGS="-O3 -fPIC"
+  LIBDIRSUFFIX="64"
+else
+  SLKCFLAGS="-O2"
+  LIBDIRSUFFIX=""
+fi
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $TMP/$APP-$VERSION
+tar xvf $CWD/$APP-$VERSION.tar.gz
+cd $APP-$VERSION
+
+chown -R root:root .
+find -L . \
+\( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+ -o -perm 511 \) -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 {} \;
+
+CFLAGS="$SLKCFLAGS"
+
+make -f Makefile.generic
+
+install -d $PKG/usr/bin
+install -g root -o root -p -s -t $PKG/usr/bin onyx onyx
+install -d $PKG/usr/lib${LIBDIRSUFFIX}/mozilla/native-messaging-hosts
+cat $cwd/onyx.json > $PKG/usr/lib${LIBDIRSUFFIX}/mozilla/native-messaging-hosts/onyx.json
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+
+cp -a README.md LICENSE.txt $PKG/usr/doc/$PRGNAM-$VERSION
+find $PKG/usr/doc/$PRGNAM-$VERSION -type f -exec chmod 644 {} \;
+
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}
diff --git a/network/onyx/onyx.info b/network/onyx/onyx.info
new file mode 100644
index 0000000000..0da34517ab
--- /dev/null
+++ b/network/onyx/onyx.info
@@ -0,0 +1,10 @@
+PRGNAM="onyx"
+VERSION="0.9.2.0"
+HOMEPAGE="https://github.com/classilla/overbitenx"
+DOWNLOAD="https://github.com/classilla/overbitenx/archive/0.9.2.0/overbitenx-0.9.2.0.tar.gz"
+MD5SUM="4574e79f673527851da0a60a1b17e2ae"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="Kurt M. Weber"
+EMAIL="weberk294@gmail.com"
diff --git a/network/onyx/onyx.json b/network/onyx/onyx.json
new file mode 100644
index 0000000000..029e954803
--- /dev/null
+++ b/network/onyx/onyx.json
@@ -0,0 +1,7 @@
+{
+  "name": "onyx",
+  "description": "OverbiteNX Gopher system component",
+  "path": "/usr/bin/onyx",
+  "type": "stdio",
+  "allowed_extensions": [ "overbitenx@floodgap.com" ]
+}
diff --git a/network/onyx/slack-desc b/network/onyx/slack-desc
new file mode 100644
index 0000000000..dc5e900bf3
--- /dev/null
+++ b/network/onyx/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 ':'.
+
+    |-----handy-ruler------------------------------------------------------|
+onyx: onyx (Gopher protocol engine)
+onyx:
+onyx: Onyx provides access to the Gopher protocol to the OverbiteNX
+onyx: extension for Firefox.  It is necessary to circumvent the fact that
+onyx: Firefox's WebExtensions framework does not provide TCP/IP access
+onyx: to extensions.
+onyx:
+onyx: This package is useless without Firefox (version 60 or above with
+onyx: the OverbiteNX extension installed.
+onyx:
+onyx: https://github.com/classilla/overbitenx