Top 3 C Service Projects

InitWare

1 22 284 2.1 C

The InitWare Suite of Middleware allows you to manage services and system resources as logical entities called units. Its main component is a service management ("init") system.

Project mention: InitWare, a portable systemd fork running on BSDs and Linux | news.ycombinator.com | 2025-04-03

Agree and so I went looking and here is the reason: https://github.com/InitWare/InitWare/commit/3ee721035525dbb1....
They started with a specific version of systemd and have been mutating it since then, so the whole this is "tainted" with LGPL now.
InfluxDB

influxdata.com featured

InfluxDB high-performance time series database. Collect, organize, and act on massive volumes of high-resolution data to power real-time intelligent systems.
ngx-export

2 2 162 8.0 C

A comprehensive web framework aimed at building custom Haskell handlers for the Nginx Web Server
fiss

3 1 20 8.5 C

Friedel's Initialization and Service Supervision

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).