systemd: add aminmda-nocron.{service,timer} for my @reboot crontabs for cronless systems (SteamOS)

etc/systemd/system/aminda-nocron.service

@@ -0,0 +1,29 @@
+[Unit]
+Description=Aminda's cronless boot tasks
+
+[Service]
+Type=oneshot
+TimeoutStartSec=infinity
+# - means it can fail, without failing those after it
+# These services are called here, so
+ExecStartPre=-/usr/bin/systemctl start firewalld.service
+ExecStartPre=-/usr/bin/systemctl start yggdrasil.service
+# Ensure /etc/sysctl.d/ gets read
+ExecStart=-/usr/sbin/sysctl -p --system
+# Ensure we really allow ICMPv6 on FEDORA (or firewalld)
+ExecStart=-/usr/bin/firewall-cmd --add-protocol=ipv6-icmp
+# 3rd party Xbox controller initialization. See Mikaela/gist/gayming/
+#ExecStart=-/root/fixcontroller.py
+# Another attempt at ensuring Yggdrasil works with nordvpnd
+ExecStart=-/usr/sbin/sysctl net.ipv6.conf.all.disable_ipv6=0
+ExecStart=-/usr/bin/systemctl restart yggdrasil.service
+# BTRFS deduplication
+#ExecStart=-/usr/sbin/duperemove -rdhq --hashfile=/root/home.hash /home
+#ExecStart=-/usr/sbin/duperemove -rdhq --hashfile=/root/flatpak.hash /var/lib/flatpak
+#ExecStart=-/usr/sbin/duperemove -rdhq --hashfile=/root/snap.hash /var/lib/snapd
+User=root
+StandardOutput=journal
+StandardError=journal
+
+[Install]
+WantedBy=multi-user.target

etc/systemd/system/aminda-nocron.timer

@@ -0,0 +1,11 @@
+[Unit]
+Description=Run Aminda's crontab boot tasks for when there is no cron
+
+[Timer]
+OnBootSec=0
+# User services
+#OnStartupSec5
+Persistent=true
+
+[Install]
+WantedBy=timers.target