diff --git a/extra/opendoas/build b/extra/opendoas/build
new file mode 100755
index 00000000..06401e9a
--- /dev/null
+++ b/extra/opendoas/build
@@ -0,0 +1,15 @@
+#!/bin/sh -e
+
+sed -i '/chown/d'   bsd.prog.mk
+sed -i 's/111/755/' Makefile
+
+./configure \
+    --enable-static \
+    --with-shadow \
+    --with-timestamp \
+    --without-pam
+
+make
+make DESTDIR="$1" install
+
+install -D doas.conf "$1/etc/doas.conf"
diff --git a/extra/opendoas/checksums b/extra/opendoas/checksums
new file mode 100644
index 00000000..4bb6761a
--- /dev/null
+++ b/extra/opendoas/checksums
@@ -0,0 +1,2 @@
+83ca7e6d75b834f0a03604a4e5dd3879534de5ab8e75b36bbe169b53666f8ec8  v6.6.tar.gz
+282258ae49d7959002c6c8a93958b3b4bf0c5f647fdeb67d605af27af1535632  doas.conf
diff --git a/extra/opendoas/depends b/extra/opendoas/depends
new file mode 100644
index 00000000..bccf6175
--- /dev/null
+++ b/extra/opendoas/depends
@@ -0,0 +1 @@
+bison make
diff --git a/extra/opendoas/files/doas.conf b/extra/opendoas/files/doas.conf
new file mode 100644
index 00000000..ae8ec857
--- /dev/null
+++ b/extra/opendoas/files/doas.conf
@@ -0,0 +1,14 @@
+# Set rules here.
+# Priority increases with linenumber.
+# See doas.conf(5) for details.
+
+
+
+# KEEP THIS AT THE BOTTOM.
+
+# Select one of the following. The commented lines allow kiss to run
+# without requiring a password.
+permit keepenv setenv { HOME KISS_PATH KISS_FORCE } :wheel cmd kiss
+permit :wheel cmd git args pull
+# permit nopass keepenv setenv { HOME KISS_PATH KISS_FORCE } :wheel cmd kiss
+# permit nopass :wheel cmd git args pull
diff --git a/extra/opendoas/sources b/extra/opendoas/sources
new file mode 100644
index 00000000..59322cde
--- /dev/null
+++ b/extra/opendoas/sources
@@ -0,0 +1,2 @@
+https://github.com/Duncaen/OpenDoas/archive/v6.6.tar.gz
+files/doas.conf
diff --git a/extra/opendoas/version b/extra/opendoas/version
new file mode 100644
index 00000000..a367d970
--- /dev/null
+++ b/extra/opendoas/version
@@ -0,0 +1 @@
+6.6 1