HEX

File: //lib/systemd/system/syno-boot-seq-tmp-bootseq.service

[Unit]
Description=Set boot sequence config for temporary use
DefaultDependencies=no
IgnoreOnIsolate=true
After=local-fs.target

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/bin/ln -s /run/boot_seq.cfg /tmp/boot_seq.tmp

[X-Synology]