Networking
Wi-Fi is handled by iwd (iwctl, or the Settings Wi-Fi tab); dhcpcd leases addresses. iproute2’s ip manages links, addresses and routes, including the bridges/taps that guests use.
Firewall: nftables. The default policy allows SSH and drops the rest; the Settings → Firewall panel edits rules and reloads them.
Time: chrony keeps the clock synced; manage it from Settings → Date & Time or webgen-tz.
Remote access: OpenSSH is on by default.