Index: GIDs
===================================================================
--- GIDs
+++ GIDs
@@ -186,7 +186,7 @@
 ot-recorder:*:243:
 mastodon:*:244:
 routinator:*:245:
-# free: 246
+fahclient:*:246:fahclient
 fcron:*:247:
 # free: 248
 # free: 249
Index: UIDs
===================================================================
--- UIDs
+++ UIDs
@@ -191,7 +191,7 @@
 ot-recorder:*:243:243::0:0:OwnTracks Recorder:/nonexistent:/usr/sbin/nologin
 mastodon:*:244:244::0:0:Mastodon User:/usr/local/www/mastodon:/bin/sh
 routinator:*:245:245::0:0:Routinator 3000 Pseudo User:/nonexistent:/usr/sbin/nologin
-# free: 246
+fahclient:*:246:246::0:0:Folding@home Desktop Client:/var/db/fahclient:/usr/sbin/nologin
 fcron:*:247:247::0:0:fcron pseudo-user:/nonexistent:/usr/sbin/nologin
 # free: 248
 # free: 249
Index: science/Makefile
===================================================================
--- science/Makefile
+++ science/Makefile
@@ -76,6 +76,7 @@
     SUBDIR += erkale
     SUBDIR += erkale-pseudopotentials
     SUBDIR += esys-particle
+    SUBDIR += fahclient
     SUBDIR += fastcap
     SUBDIR += fasthenry
     SUBDIR += fisicalab
Index: science/fahclient/Makefile
===================================================================
--- /dev/null
+++ science/fahclient/Makefile
@@ -0,0 +1,57 @@
+# $FreeBSD$
+
+PORTNAME=	fahclient
+DISTVERSION=	7.5.1-1
+CATEGORIES=	science linux
+MASTER_SITES=	https://download.foldingathome.org/releases/public/release/fahclient/centos-6.7-64bit/v${DISTVERSION:R}/
+EXTRACT_SUFX=	.x86_64.rpm
+
+MAINTAINER=	0mp@FreeBSD.org
+COMMENT=	Folding@home Desktop Client
+
+LICENSE=	FAHSL
+LICENSE_NAME=	Folding@home Software License
+LICENSE_FILE=	${WRKSRC}/usr/share/doc/fahclient/copyright
+LICENSE_PERMS=	auto-accept
+
+ONLY_FOR_ARCHS=	amd64
+ONLY_FOR_ARCHS_REASON=	The i386 client has not been ported
+
+USES=		linux
+USE_RC_SUBR=	${PORTNAME}
+
+NO_BUILD=	yes
+
+SUB_LIST=	FAHCLIENT_CONFIG_XML=${_FAHCLIENT_CONFIG_XML} \
+		FAHCLIENT_HOME=${_FAHCLIENT_HOME} \
+		FAHCLIENT_PROGRAM=${_FAHCLIENT_PROGRAM}
+NO_WRKSUBDIR=	yes
+
+USERS=		fahclient
+GROUPS=		fahclient
+
+PLIST_SUB=	FAHCLIENT_HOME=${_FAHCLIENT_HOME}
+
+# Keep in sync with the UIDs and GIDs files.
+_FAHCLIENT_CONFIG_XML=	${ETCDIR}/config.xml
+_FAHCLIENT_HOME=	/var/db/fahclient
+_FAHCLIENT_PROGRAM=	${PREFIX}/bin/FAHClient
+
+do-install:
+	${INSTALL_PROGRAM} ${WRKSRC}/usr/bin/FAHClient \
+		${STAGEDIR}${_FAHCLIENT_PROGRAM}
+	${INSTALL_PROGRAM} ${WRKSRC}/usr/bin/FAHCoreWrapper \
+		${STAGEDIR}${PREFIX}/bin/
+	${INSTALL_DATA} ${WRKSRC}/usr/share/pixmaps/* \
+		${STAGEDIR}${PREFIX}/share/pixmaps/
+	${INSTALL_DATA} ${WRKSRC}/usr/share/applications/FAHWebControl.desktop \
+		${STAGEDIR}${DESKTOPDIR}
+	@${MKDIR} ${STAGEDIR}${DOCSDIR}
+	(cd ${WRKSRC}/usr/share/doc/fahclient && \
+		${COPYTREE_SHARE} . ${STAGEDIR}${DOCSDIR})
+	@${MKDIR} ${STAGEDIR}${ETCDIR}
+	${INSTALL_DATA} ${STAGEDIR}${DOCSDIR}/sample-config.xml \
+		${STAGEDIR}${_FAHCLIENT_CONFIG_XML}.sample
+	@${MKDIR} ${STAGEDIR}/var/db/${PORTNAME}
+
+.include <bsd.port.mk>
Index: science/fahclient/distinfo
===================================================================
--- /dev/null
+++ science/fahclient/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1584651753
+SHA256 (fahclient-7.5.1-1.x86_64.rpm) = da579fa02df66fc6fb48dc2bc81c4b6f46fe4f6696afe20d70b9bd5e5941837f
+SIZE (fahclient-7.5.1-1.x86_64.rpm) = 3025708
Index: science/fahclient/files/fahclient.in
===================================================================
--- /dev/null
+++ science/fahclient/files/fahclient.in
@@ -0,0 +1,61 @@
+#! /bin/sh -
+#
+# $FreeBSD$
+#
+# SPDX-License-Identifier: BSD-2-Clause
+#
+# Copyright (c) 2020 Mateusz Piotrowski <0mp@FreeBSD.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+#     1. Redistributions of source code must retain the above copyright notice,
+#        this list of conditions and the following disclaimer.
+#     2. Redistributions in binary form must reproduce the above copyright
+#        notice, this list of conditions and the following disclaimer in the
+#        documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER OR CONTRIBUTORS 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.
+
+# PROVIDE: fahclient
+# REQUIRE: DAEMON LOGIN NETWORKING linux
+
+. /etc/rc.subr
+
+name='fahclient'
+rcvar='fahclient_enable'
+
+load_rc_config 'fahclient'
+
+# Default settings.
+: "${fahclient_enable:=no}"
+: "${fahclient_chdir:=%%FAHCLIENT_HOME%%}"
+: "${fahclient_user:=fahclient}"
+: "${fahclient_pidfile:=/var/run/fahclient.pid}"
+: "${fahclient_config:=%%ETCDIR%%/config.xml}"
+
+pidfile="${fahclient_pidfile}"
+
+procname='%%FAHCLIENT_PROGRAM%%'
+command="/usr/sbin/daemon"
+command_args="-T ${name} -p ${pidfile} ${procname} ${fahclient_config}"
+
+start_precmd="fahclient_prestart"
+
+required_modules='linprocfs linsysfs linuxcommon'
+
+fahclient_prestart() {
+	touch "${pidfile}" && chown "${fahclient_user}" "${pidfile}"
+}
+
+run_rc_command "$1"
Index: science/fahclient/pkg-descr
===================================================================
--- /dev/null
+++ science/fahclient/pkg-descr
@@ -0,0 +1,8 @@
+Folding@home is a distributed computing project -- people from
+throughout the world download and run software to band together to
+make one of the largest supercomputers in the world. Every computer
+takes the project closer to its goals. Folding@home uses novel
+computational methods coupled to distributed computing, to simulate
+problems millions of times more challenging than previously achieved.
+
+WWW: https://foldingathome.org/
Index: science/fahclient/pkg-message
===================================================================
--- /dev/null
+++ science/fahclient/pkg-message
@@ -0,0 +1,15 @@
+[
+{ type: install
+  message: <<EOM
+In order to run the Folding@home Desktop Client daemon it is necessary to:
+- Mount linprocfs in /compat/linux/proc.
+- Mount linsysfs in /compat/linux/sys.
+- Modify the user information in %%FAHCLIENT_CONFIG_XML%%.
+
+Afterwards, the fahclient daemon can be started with service(8).
+
+The logs can be accessed by inspecting either /var/log/messages
+or %%FAHCLIENT_HOME%%/log.txt.
+EOM
+}
+]
Index: science/fahclient/pkg-plist
===================================================================
--- /dev/null
+++ science/fahclient/pkg-plist
@@ -0,0 +1,12 @@
+bin/FAHClient
+bin/FAHCoreWrapper
+@dir(fahclient,fahclient,) %%ETCDIR%%
+@sample(fahclient,fahclient,) %%ETCDIR%%/config.xml.sample
+share/applications/FAHWebControl.desktop
+%%DOCSDIR%%/CHANGELOG.md
+%%DOCSDIR%%/README.md
+%%DOCSDIR%%/copyright
+%%DOCSDIR%%/sample-config.xml
+share/pixmaps/FAHClient.icns
+share/pixmaps/FAHClient.png
+@dir(fahclient,fahclient,) %%FAHCLIENT_HOME%%