diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..d7df686
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,164 @@
+SUBDIR += misc
+SUBDIR += sience
+
+PORTSTOP=	yes
+
+.include <bsd.port.subdir.mk>
+
+index: 	${INDEXDIR}/${INDEXFILE}
+
+INDEX_COMPRESSION_FORMAT?=	xz
+
+.if ${INDEX_COMPRESSION_FORMAT} != xz && \
+	${INDEX_COMPRESSION_FORMAT} != bz2 && ${INDEX_COMPRESSION_FORMAT} != zst
+.error "Invalid compression format: ${INDEX_COMPRESSION_FORMAT}, expecting xz, bz2 or zst"
+.endif
+
+fetchindex: ${INDEXDIR}/${INDEXFILE}.${INDEX_COMPRESSION_FORMAT}
+	@if bsdcat < ${INDEXDIR}/${INDEXFILE}.${INDEX_COMPRESSION_FORMAT} > ${INDEXDIR}/${INDEXFILE}.tmp ; then \
+		chmod a+r ${INDEXDIR}/${INDEXFILE}.tmp; \
+		${MV} ${INDEXDIR}/${INDEXFILE}.tmp ${INDEXDIR}/${INDEXFILE}; \
+		${RM} ${INDEXDIR}/${INDEXFILE}.${INDEX_COMPRESSION_FORMAT} \
+	else ; \
+		${RM} ${INDEXDIR}/${INDEXFILE}.tmp ; \
+	fi
+
+${INDEXDIR}/${INDEXFILE}.${INDEX_COMPRESSION_FORMAT}: .PHONY
+	${FETCHINDEX} ${INDEXDIR}/${INDEXFILE}.${INDEX_COMPRESSION_FORMAT} \
+		${MASTER_SITE_INDEX}${INDEXFILE}.${INDEX_COMPRESSION_FORMAT}
+
+MASTER_SITE_INDEX?=	https://download.FreeBSD.org/ports/index/
+SETENV?=	/usr/bin/env
+FETCHINDEX?=	${SETENV} ${FETCH_ENV} fetch -am -o
+
+.if !defined(INDEX_JOBS)
+INDEX_JOBS!=	${SYSCTL} -n kern.smp.cpus
+.endif
+
+.if !defined(INDEX_VERBOSE)
+INDEX_ECHO_MSG=		true
+INDEX_ECHO_1ST=		echo -n
+.else
+INDEX_ECHO_MSG=		echo 1>&2
+INDEX_ECHO_1ST=		echo
+.endif
+
+# /rescue/sh is statically linked and much faster to execute than the
+# dynamically linked /bin/sh.  This is significant for targets like
+# make index that execute the shell tens of thousands of times.
+.if exists(/rescue/sh)
+INDEX_SHELL=		/rescue/sh
+.else
+INDEX_SHELL=		/bin/sh
+.endif
+
+.if !defined(INDEX_PORTS)
+INDEX_PORTS=.
+.endif
+
+.if exists(/usr/libexec/make_index)
+MAKE_INDEX=	/usr/libexec/make_index /dev/stdin
+.else
+MAKE_INDEX=	perl ${.CURDIR}/Tools/make_index
+.endif
+
+${INDEXDIR}/${INDEXFILE}: .PHONY
+	@${INDEX_ECHO_1ST} "Generating ${INDEXFILE} - please wait.."; \
+	if [ "${INDEX_PRISTINE}" != "" ]; then \
+		export LOCALBASE=/nonexistentlocal; \
+	fi; \
+	tmpdir=`/usr/bin/mktemp -d -t index` || exit 1; \
+	trap "rm -rf $${tmpdir}; exit 1" 1 2 3 5 10 13 15; \
+	( cd ${.CURDIR}; for i in ${INDEX_PORTS}; do (cd $${i} && ${MAKE} -j${INDEX_JOBS} INDEX_TMPDIR=$${tmpdir} BUILDING_INDEX=1 \
+		__MAKE_SHELL=${INDEX_SHELL} \
+		ECHO_MSG="${INDEX_ECHO_MSG}" describe); done ) || \
+		(rm -rf $${tmpdir} ; \
+		if [ "${INDEX_QUIET}" = "" ]; then \
+			echo; \
+			echo "********************************************************************"; \
+			echo "Before reporting this error, verify that you are running a supported"; \
+			echo "version of FreeBSD (see https://www.FreeBSD.org/ports/) and that you"; \
+			echo "have a complete and up-to-date ports collection.  (INDEX builds are"; \
+			echo "not supported with partial or out-of-date ports collections."; \
+			echo "If that is the case, then"; \
+			echo "report the failure to ports@FreeBSD.org together with relevant"; \
+			echo "details of your ports configuration (including FreeBSD version,"; \
+			echo "your architecture, your environment, and your /etc/make.conf"; \
+			echo "settings, especially compiler flags and OPTIONS_SET/UNSET settings)."; \
+			echo; \
+			echo "Note: the latest pre-generated version of INDEX may be fetched"; \
+			echo "automatically with \"make fetchindex\"."; \
+			echo "********************************************************************"; \
+			echo; \
+		fi; \
+		exit 1); \
+	cat $${tmpdir}/${INDEXFILE}.desc.* | \
+		sed -e 's|${.CURDIR}|${PORTSDIR}|g' | \
+		(cd ${.CURDIR} ; ${MAKE_INDEX}) | \
+		sed -e 's/  */ /g' -e 's/|  */|/g' -e 's/  *|/|/g' -e 's./.
.g' | \
+		sort -t '|' -k 2,3 | \
+		sed -Ee 's.
./.g' -e ':a' -e 's|/[^/]+/\.\.||; ta' \
+		-e 's|${PORTSDIR}|/usr/ports|g' \
+		-e 's|${.CURDIR}|/usr/ports|g' > ${INDEXDIR}/${INDEXFILE}.tmp; \
+	if [ "${INDEX_PRISTINE}" != "" ]; then \
+		sed -e "s,$${LOCALBASE},/usr/local," ${INDEXDIR}/${INDEXFILE}.tmp > ${INDEXDIR}/${INDEXFILE}; \
+	else \
+		mv ${INDEXDIR}/${INDEXFILE}.tmp ${INDEXDIR}/${INDEXFILE}; \
+	fi; \
+	rm -rf $${tmpdir}; \
+	echo " Done."
+
+print-index:	${INDEXDIR}/${INDEXFILE}
+	@awk -F\| '{ printf("Port:\t%s\nPath:\t%s\nInfo:\t%s\nMaint:\t%s\nIndex:\t%s\nB-deps:\t%s\nR-deps:\t%s\nE-deps:\t%s\nP-deps:\t%s\nF-deps:\t%s\nWWW:\t%s\n\n", $$1, $$2, $$4, $$6, $$7, $$8, $$9, $$11, $$12, $$13, $$10); }' < ${INDEXDIR}/${INDEXFILE}
+
+GIT?= git
+.if !defined(SVN) || empty(SVN)
+. for _P in /usr/bin /usr/local/bin
+.  for _S in svn svnlite
+.   if exists(${_P}/${_S})
+SVN=   ${_P}/${_S}
+.   endif
+.  endfor
+. endfor
+.endif
+RSYNC?= rsync
+PORTSNAP?= portsnap
+PORTSNAP_FLAGS?= -p ${.CURDIR}
+.if !target(update)
+update:
+.if exists(${.CURDIR}/.svn)
+	@echo "--------------------------------------------------------------"
+	@echo ">>> Updating ${.CURDIR} using Subversion"
+	@echo "--------------------------------------------------------------"
+	cd ${.CURDIR}; ${SVN} update
+.elif exists(${.CURDIR}/.git)
+.  if exists(${.CURDIR}/.git/svn)
+	@echo "--------------------------------------------------------------"
+	@echo ">>> Updating ${.CURDIR} from git+svn repository"
+	@echo "--------------------------------------------------------------"
+	cd ${.CURDIR}; ${GIT} svn rebase
+.  else
+	@echo "--------------------------------------------------------------"
+	@echo ">>> Updating ${.CURDIR} from git repository"
+	@echo "--------------------------------------------------------------"
+	cd ${.CURDIR}; ${GIT} pull --rebase
+.  endif
+.elif defined(RSYNC_UPDATE) && defined(PORTS_RSYNC_SOURCE)
+	@echo "--------------------------------------------------------------"
+	@echo ">>> Updating with ${RSYNC} from ${PORTS_RSYNC_SOURCE}"
+	@echo "--------------------------------------------------------------"
+	@${RSYNC} ${RSYNC_FLAGS} ${PORTS_RSYNC_SOURCE}/ ${.CURDIR}/
+.else
+	@echo "--------------------------------------------------------------"
+	@echo ">>> Running ${PORTSNAP}"
+	@echo "--------------------------------------------------------------"
+.if !exists(${PORTSDIR}/.portsnap.INDEX)
+	@echo "Error: 'make update' uses portsnap(8) by default and"
+	@echo "needs ${PORTSDIR} to be created by portsnap on its first run."
+	@echo "Please run 'portsnap fetch extract' first."
+.else
+	@${PORTSNAP} ${PORTSNAP_FLAGS} fetch
+	@${PORTSNAP} ${PORTSNAP_FLAGS} update
+.endif
+.endif
+.endif