dotbot does not carry a `defaults` block between config files, so the
host configs ran without force/relink and refused to replace paths that
already existed as real files — the opencode profiles, the Claude files,
the sunshine config and the old systemd units all failed to link. Each
host config now restates the block.
ddns.timer used OnCalendar=*-*-*/2, which systemd rejects: a day-of-month
step needs an explicit start value. The retired cron line was
`0 2 */2 * *`, so the correct spelling is *-*-1/2.
connor
229b4bce6f