systemd

Persistent execution enables agent systems to handle long-running tasks and resume after interruptions.

A systemd timer is the scheduled task mechanism provided by systemd, consisting of a pair of units: the .timer unit defines the trigger time (similar to cron), and the .service unit defines the command actually executed.

systemd's Restart=on-failure configuration means systemd automatically restarts the process when it exits with a non-zero status or is killed by a signal; it does not handle hangs or false liveness, and must be paired with journalctl -f to track logs in real time.

LCOS 0.9.4 adds support for running Thermal D and several tools in a systemd-free environment, for which the development team wrote additional scripts.

Distributions that do not ship systemd must provide their own alternative init solution (such as OpenRC, runit, s6, etc.) and rewrite the startup logic for software that hard-depends on systemd.

systemd is the init system and service manager adopted by default in the vast majority of mainstream Linux distributions today.

Self-hosting means users must themselves take responsibility for the runtime environment, dependency updates, security patches, and backups; production environments typically also require a reverse proxy (such as Nginx), process supervision (such as systemd), and a regular update strategy.

A supervisor (such as systemd, supervisord, PM2) is a daemon that manages the worker lifecycle and automatically restarts it on crash, and its status command must be used to confirm whether the worker was successfully started.

Traditionally, configuring a daemon requires explicit user action (such as writing a systemd service file), and users have clear knowledge of its existence, permissions, and startup timing.

launchd is macOS's init and service management daemon, equivalent to Linux's systemd, and via plist files it can define tasks that start Exo and Ray workers when invoked.

He-API's usage events are written to ClickHouse via Kafka, while billing, model and provider metadata land in PostgreSQL; the system comprises 15 services running on systemd, all in Go except one Next.js admin console; the middleware includes Postgres, Kafka, Redis and ClickHouse, and all 22 migration scripts are idempotent.

The AI agent spending gate is deployed above the local agent, runs in a systemd unit on the loopback address 127.0.0.1:8899/anthropic, holds the real key and forwards to the upstream, and the agent itself does not hold the key.

A daemon is a process that detaches from terminal control and runs in the background for a long time, typically registered and started at system boot via an init system (such as systemd, launchd) or a service manager.

macOS has neither systemd nor cgroups, so it cannot limit the memory of a single task through cgroup or systemd-run the way Linux does

rclone has a relatively high barrier to entry, requiring OAuth authorization configuration in the terminal, manually writing sync commands, or using systemd to set up scheduled tasks for automation

This implementation uses systemd services to manage the lifecycle of background inference processes, ensuring that services start in the correct order after boot.

Daemon services are typically configured via systemd to ensure automatic startup on boot and automatic restart after a crash, which is standard practice for production-grade local deployments.

In Unix/Linux systems, when a parent process exits, its unreclaimed child processes become orphan processes and are taken over by the init process (PID 1) or systemd.

Common implementation methods for process-level self-healing include using a watchdog process to monitor service liveness, or using systemd's Restart=always configuration to achieve automatic restarts.

systemd 支持用户级服务管理（通过 --user 标志），普通用户无需 root 权限即可注册和管理后台服务，用户级 unit 文件存放在 ~/.config/systemd/user/