diff --git a/preseed/Makefile b/preseed/Makefile
new file mode 100644
index 0000000..113831d
--- /dev/null
+++ b/preseed/Makefile
@@ -0,0 +1,45 @@
+# Copyright (C) 2023 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
+#
+# This project is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This project is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this project.  If not, see <http://www.gnu.org/licenses/>.
+
+.PHONY: mtools-signkey
+
+all: preseed.img
+
+pubring.kbx:
+	gpg --homedir $$PWD \
+		--list-keys 51A23D9D7C4DF41AA48FA893E99CF5537790B839 || \
+	gpg --homedir $$PWD \
+		--recv-keys 51A23D9D7C4DF41AA48FA893E99CF5537790B839
+
+mtools-4.0.43.tar.bz2:
+	wget http://ftp.gnu.org/gnu/mtools/$@ -O $@
+
+mtools-4.0.43.tar.bz2.sig:
+	wget http://ftp.gnu.org/gnu/mtools/$@ -O $@
+
+mtools-4.0.43: mtools-4.0.43.tar.bz2 mtools-4.0.43.tar.bz2.sig
+	gpg --homedir $$PWD --verify mtools-4.0.43.tar.bz2.sig
+	tar xf mtools-4.0.43.tar.bz2
+	cd mtools-4.0.43 && \
+		./configure && \
+		make
+
+preseed.img: mtools-4.0.43
+	dd if=/dev/zero of=$@ count=2048
+	mtools-4.0.43/mformat -i $@ ::
+	mtools-4.0.43/mcopy   -i $@ \
+	../trisquel-guix-installer.experimental.a-lec.org/config/debconf/FAIBASE \
+	::
+	mtools-4.0.43/mdir -i $@ ::