refactor: system skeleton instead of common files

skel/etc/cron.d/restic.crontab

@@ -0,0 +1,10 @@
+# /etc/cron.d/restic.crontab
+
+# every 4 hours create a backup
+0 */4 * * * root /neb/common/restic/backup.sh
+
+# every day at 2 in the morning, forget old backups
+0 2 * * * root /neb/common/restic/forget.sh
+
+# every 1st of the month at 2 in the morning, prune
+50 2 1 * * root /neb/common/restic/prune.sh

skel/etc/ssh/ssh_config.d/ixvd.conf

@@ -0,0 +1,21 @@
+#####################
+## IXVD ssh config ##
+#####################
+
+# This config describes what the bastion hose is and how to jump
+
+
+Host link
+    HostName link.ixvd.net
+
+Host keymaker
+    ProxyJump link
+
+Host apoc
+    ProxyJump link
+
+Host kid
+    ProxyJump link
+
+Host mouse
+    ProxyJump link