# systemd/systemd

The systemd System and Service Manager

Repository: https://github.com/systemd/systemd
Canonical: https://ross.abutalabs.com/products/systemd
Homepage: https://systemd.io
Language: C
License: GPL-2.0
License Family: copyleft
Topics: systemd, c, linux, init, services, system
Last push: 2026-08-26T23:17:40+00:00

## Health v2 (maintenance only)
Score: 97/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 94, longevity 100
- inputs: {"age_days": 4179, "days_push": 7, "days_rel": 40, "gap_med": 4, "n_releases_24m": 54}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 16630, forks 4643 (observed 2026-08-28T04:11:16.873032+00:00)

## What it is
systemd is a suite of basic building blocks for a Linux system, providing a system and service manager that runs as PID 1 and starts the rest of the system. It offers parallelized service startup, socket and D-Bus activation, cgroup-based process tracking, and companion daemons for logging, network configuration, time sync, and name resolution.

## Use cases
- manage system services and daemons on linux
- configure which services start at boot
- view and query system logs with journald
- set up socket-activated on-demand services
- manage mount points and automounts
- control runlevels and boot targets
- track processes with control groups

## When to choose
- you administer a modern linux distribution that ships systemd
- you need a dependency-based service manager with parallel startup
- you want integrated logging, network config, and device management under one init system

## When to avoid
- you run a non-linux operating system
- you prefer a minimal init like runit, s6, or OpenRC on a lightweight system
- you need to manage services on embedded systems with strict resource constraints

## Facets
- artifact type: application
- maturity: stable
- function: configuration-management, logging, networking, scheduling, developer-tools
- domain: operating-systems, self-hosted, infrastructure-as-code
- platform: c
- tags: init-system, pid1, service-manager, cgroups, journald, system-boot, unit-files, dbus-activation, devops, linux

## Member repositories
- systemd/systemd (main) score 97

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:16.873032+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:04:50.152686+00:00, confidence not recorded.
  - readme: https://github.com/systemd/systemd (fetched 2026-08-28T04:11:16.873032+00:00, sha 657d11e50740)
  - homepage: https://systemd.io (fetched 2026-08-29T08:02:04.518625+00:00, sha 1fc4d631d22e)
  - site_page: https://systemd.io/FAQ (fetched 2026-08-29T08:02:04.528388+00:00, sha 194db9ccdebc)
- Data as of 2026-08-30T08:39:29.467469+00:00.