diff --git a/textproc/quarto/Makefile b/textproc/quarto/Makefile
index b115a0383df2..ab0e7c999246 100644
--- a/textproc/quarto/Makefile
+++ b/textproc/quarto/Makefile
@@ -1,78 +1,85 @@
 PORTNAME=	quarto
 DISTVERSION=	1.6.9
-PORTREVISION=	3
+PORTREVISION=	4
 CATEGORIES=	textproc
 MASTER_SITES=	https://github.com/quarto-dev/quarto-cli/releases/download/v${DISTVERSION}/
 DISTFILES=	quarto-${DISTVERSION}-linux-amd64.tar.gz # same for all architectures
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Scientific and technical publishing system
 WWW=		https://quarto.org/
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/repo/COPYRIGHT
 
 RUN_DEPENDS=	bash:shells/bash \
 		deno:www/deno \
 		esbuild:devel/esbuild \
 		hs-pandoc32>0:textproc/hs-pandoc32 \
 		typst:textproc/typst \
 		deno-dom>0:www/deno-dom \
 		tex-xetex>0:print/tex-xetex \
 		${LOCALBASE}/lib/ruby/gems/3.2/gems/dartsass-1.49.8/exe/linux/sass:textproc/rubygem-dartsass \
 		${PYTHON_PKGNAMEPREFIX}jupyter>0:devel/py-jupyter@${PY_FLAVOR}
 
 USES=		python
 
 USE_GITHUB=	nodefault
 GH_TUPLE=	quarto-dev:quarto-cli:v${DISTVERSION}:repo/repo # only for tests
 
 XARCH!=		uname -m
 
 PLIST_SUB+=	XARCH=${XARCH}
 
 NO_BUILD=	yes
 
+OPTIONS_DEFINE=	R
+
+R_DESC=		Install R dependency
+R_RUN_DEPENDS=	R:math/R \
+		R-cran-knitr>0:print/R-cran-knitr
+		#R-cran-rmarkdown>0:textproc/R-cran-rmarkdown # conflicts with hs-pandoc32
+
 post-patch:
 	# replace tokens in the quarto executable and in run-tests.sh
 	${REINPLACE_CMD} -i '' \
 		-e 's|%%SCRIPT_PATH%%|${DATADIR}/bin|; s|%%ARCH_DIR%%|${XARCH}|' \
 		${WRKSRC}/bin/quarto
 	${REINPLACE_CMD} \
 		-e 's|%%SCRIPT_PATH%%|${STAGEDIR}${DATADIR}/bin|; s|%%ARCH_DIR%%|${XARCH}|; s|%%REPO%%|${WRKSRC}/repo|; s|$$DENO_DIR|${LOCALBASE}/bin|' \
 		${WRKSRC}/repo/tests/run-tests.sh
 
 do-install:
 	# copy files from the tarball
 	@cd ${WRKSRC} && \
 		${COPYTREE_SHARE} bin ${STAGEDIR}${DATADIR} && \
 		${COPYTREE_SHARE} share ${STAGEDIR}${DATADIR}
 	# remove unnecessary files
 	${RM} ${STAGEDIR}${DATADIR}/bin/quarto.orig
 	# adjust architecture
 	${MV} ${STAGEDIR}${DATADIR}/bin/tools/x86_64 ${STAGEDIR}${DATADIR}/bin/tools/${XARCH}
 	cd ${STAGEDIR}${DATADIR}/bin/tools && ${LN} -s amd64 x86_64
 	# create symlink
 	${RLN} ${STAGEDIR}${DATADIR}/bin/${PORTNAME} ${STAGEDIR}${PREFIX}/bin/${PORTNAME}
 	# substitute linux binaries with native ones
 .for exe in deno esbuild pandoc typst
 	${TOUCH} ${STAGEDIR}${PREFIX}/bin/${exe}
 	${RM} ${STAGEDIR}${DATADIR}/bin/tools/${XARCH}/${exe}
 	${RLN} ${STAGEDIR}${PREFIX}/bin/${exe} ${STAGEDIR}${DATADIR}/bin/tools/${XARCH}/${exe}
 	${RM} ${STAGEDIR}${PREFIX}/bin/${exe}
 .endfor
 	${RM} ${STAGEDIR}${DATADIR}/bin/tools/${XARCH}/deno_dom/libplugin.so
 	${RMDIR} ${STAGEDIR}${DATADIR}/bin/tools/${XARCH}/deno_dom
 	${REINPLACE_CMD} -i '' \
 		-e 's|export DENO_DOM_PLUGIN=.*|export DENO_DOM_PLUGIN=${LOCALBASE}/lib/deno-plugins/deno_dom.so|' \
 		${STAGEDIR}${DATADIR}/bin/quarto
 	# make quarto an executable
 	${CHMOD} +x ${STAGEDIR}${DATADIR}/bin/quarto
 	# replace Linux binary for dart-sass with the binary provided by the rubygem-dartsass package
 	${RM} -r ${STAGEDIR}${DATADIR}/bin/tools/${XARCH}/dart-sass
 	${MKDIR} ${STAGEDIR}${DATADIR}/bin/tools/${XARCH}/dart-sass
 	${LN} -s \
 		${LOCALBASE}/lib/ruby/gems/3.2/gems/dartsass-1.49.8/exe/linux/sass \
 		${STAGEDIR}${DATADIR}/bin/tools/${XARCH}/dart-sass/sass
 
 .include <bsd.port.mk>