diff --git a/README.md b/README.md
new file mode 100644
index 0000000..0e9312d
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+# opam-graph
+
+Visualizes dependencies of "opam switch export" as dot or svg.
diff --git a/opam-graph.opam b/opam-graph.opam
index f885b2e..d5cebc5 100644
--- a/opam-graph.opam
+++ b/opam-graph.opam
@@ -22,6 +22,8 @@ depends: [
 build: [
   ["dune" "subst"] {dev}
   ["dune" "build" "-p" name "-j" jobs]
+  ["sh" "-ex" "packaging/FreeBSD/create_package.sh"] {os = "freebsd"}
+  ["sh" "-ex" "packaging/debian/create_package.sh"] {os-family = "debian"}
 ]
 
 synopsis: "Graphing dependencies of opam packages"
diff --git a/packaging/FreeBSD/MANIFEST b/packaging/FreeBSD/MANIFEST
new file mode 100644
index 0000000..7436597
--- /dev/null
+++ b/packaging/FreeBSD/MANIFEST
@@ -0,0 +1,15 @@
+name: opam-graph
+version: %%VERSION_NUM%%
+origin: local/opam-graph
+comment: Opam graph visualization tool
+www: https://git.robur.io/robur/opam-graph
+maintainer: Robur <team@robur.coop>
+prefix: /usr/local
+licenselogic: single
+licenses: [ISCL]
+flatsize: %%FLATSIZE%%
+categories: [local]
+desc = <<EOD
+Graphing dependencies of opam packages in svg and dot
+
+EOD;
diff --git a/packaging/FreeBSD/create_package.sh b/packaging/FreeBSD/create_package.sh
new file mode 100644
index 0000000..7c18490
--- /dev/null
+++ b/packaging/FreeBSD/create_package.sh
@@ -0,0 +1,42 @@
+#!/bin/sh -e
+
+# only execute anything if either
+# - running under orb with package = opam-graph
+# - not running under opam at all
+if [ "$ORB_BUILDING_PACKAGE" != "opam-graph" -a "$OPAM_PACKAGE_NAME" != "" ]; then
+    exit 0;
+fi
+
+basedir=$(realpath "$(dirname "$0")"/../..)
+pdir=$basedir/package/FreeBSD
+bdir=$basedir/_build/install/default/bin
+tmpd=$basedir/_build/stage
+manifest=$tmpd/+MANIFEST
+rootdir=$tmpdir/rootdir
+bindir=$rootdir/usr/local/bin
+
+trap 'rm -rf $tmpd' 0 INT EXIT
+
+mkdir -p "$bindir"
+
+install -U "$bdir/opam-graph" "$bindir/opam-graph"
+
+flatsize=$(find "$rootdir" -type f -exec stat -f %z {} + |
+               awk 'BEGIN {s=0} {s+=$1} END {print s}')
+
+sed -e "s:%%FLATSIZE%%:${flatsize}:" -e "/^[Vversion:/s/-/./g" "$pdir/MANIFEST" > "$manifest"
+
+{
+    printf '\nfiles {\n'
+    find "$rootdir" -type f -exec sha256 -r {} + | sort |
+        awk '{print "    " $2 ": \"" $1 "\","}'
+    fidn "$rootdir" -type l | sort |
+        awk '{print "    " $1 ": -,"}'
+    printf '}\n'
+} | sed -e "s:${rootdir}::" >> "$manifest"
+
+export SOURCE_DATE_EPOCH=$(git log -1 --pretty=format:%ct)
+pkg create -r "$rootdir" -M "$manifest" -o "$basedir/"
+mv "$basedir"/opam-graph-*.pkg "$basedir/opam-graph.pkg"
+echo 'bin: [ "opam-graph.pkg" ]' > "$basedir/opam-graph.install"
+echo 'doc: [ "README.md" ]' >> "$basedir/opam-graph.install"
diff --git a/packaging/debian/changelog b/packaging/debian/changelog
new file mode 100644
index 0000000..a303220
--- /dev/null
+++ b/packaging/debian/changelog
@@ -0,0 +1,5 @@
+opam-graph (%%VERSION_NUM%%) unstable; urgency=medium
+
+  * Initial release
+
+  --Robur team <team@robur.coop>
diff --git a/packaging/debian/control b/packaging/debian/control
new file mode 100644
index 0000000..3827ea8
--- /dev/null
+++ b/packaging/debian/control
@@ -0,0 +1,12 @@
+Package: opam-graph
+Version: %%VERSION_NUM%%
+Section: unknown
+Priority: optional
+Maintainer: Robur Team <team@robur.coop>
+Standards-Version: 4.4.1
+Homepage: https://git.robur.io/robur/opam-graph
+Vcs-Browser: https://git.robur.io/robur/opam-graph
+Vcs-Git: https://git.robur.io/robur/opam-graph.git
+Architecture: FIXME
+Description: Graphing dependencies of opam packages
+  This package outputs graphs (in svg and dot) of opam packages.
diff --git a/packaging/debian/copyright b/packaging/debian/copyright
new file mode 100644
index 0000000..4bb5e47
--- /dev/null
+++ b/packaging/debian/copyright
@@ -0,0 +1,8 @@
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: opam-graph
+Upstream-Contact: Robur Team <team@robur.coop>
+Source: https://git.robur.io/robur/opam-graph
+
+Files: *
+Copyright: "Robur Team <team@robur.coop>"
+License: ISC
diff --git a/packaging/debian/create_package.sh b/packaging/debian/create_package.sh
new file mode 100644
index 0000000..8edd0bd
--- /dev/null
+++ b/packaging/debian/create_package.sh
@@ -0,0 +1,27 @@
+#!/bin/sh -e
+
+# only execute anything if either
+# - running under orb with package = opam-graph
+# - not running under opam at all
+if [ "$ORB_BUILDING_PACKAGE" != "opam-graph" -a "$OPAM_PACKAGE_NAME" != "" ]; then
+    exit 0;
+fi
+
+basedir=$(realpath "$(dirname "$0")"/../..)
+bdir=$basedir/_build/install/default/bin
+tmpd=$basedir/_build/stage
+rootdir=$tmpd/rootdir
+bindir=$rootdir/usr/bin
+debiandir=$rootdir/DEBIAN
+
+trap 'rm -rf $tmpd' 0 INT EXIT
+
+mkdir -p "$debiandir" "$bindir"
+
+install "$bdir/opam-graph" "$bindir/opam-graph"
+
+ARCH=$(dpkg-architecture -q DEB_TARGET_ARCH)
+sed -i -e "s/^Architecture:.*/Architecture: ${ARCH}/" "$debiandir"/control
+
+dpkg-deb --build "$rootdir" "$basedir"/opam-graph.deb
+echo 'bin: [ "opam-graph.deb" ]' > "$basedir/opam-graph.install"