diff --git a/.config/setup/01-install-packages.sh b/.config/setup/01-install-packages.sh
index 636375e..73a231a 100755
--- a/.config/setup/01-install-packages.sh
+++ b/.config/setup/01-install-packages.sh
@@ -2,6 +2,7 @@
 
 DEB_PKGS="\
 audacity \
+borgbackup \
 direnv \
 docker.io \
 emacs-mozc \
diff --git a/.config/setup/11-initialize-backup-repository.sh b/.config/setup/11-initialize-backup-repository.sh
new file mode 100755
index 0000000..26c475e
--- /dev/null
+++ b/.config/setup/11-initialize-backup-repository.sh
@@ -0,0 +1,7 @@
+#! /usr/bin/sh
+
+sudo mkdir -p "${BORG_REPO}"
+sudo chown "${USER}":"${USER}" "${BORG_REPO}"
+sudo chmod 700 "${BORG_REPO}"
+
+borg init --encryption=repokey
diff --git a/.profile b/.profile
index 7946a22..00bab95 100644
--- a/.profile
+++ b/.profile
@@ -30,3 +30,5 @@ umask 0007
 export GTK_IM_MODULE="fcitx"
 export QT_IM_MODULE="fcitx"
 export XMODIFIERS="@im=fcitx"
+export BORG_REPO="/media/backup/"
+export BORG_PASSCOMMAND="cat ${HOME}/.keys/borg-passphrase.txt"