OPNsense is open source, FreeBSD-based firewall and routing software developed by Deciso. It is a fork of pfSense, which in turn was forked from m0n0wall.
Frigate is an open source NVR built around real-time AI object detection. All processing is performed locally on your own hardware, and your camera feeds never leave your home.
Data visualization & Monitoring with support for Graphite, InfluxDB, Prometheus, Elasticsearch and many more databases.
InfluxDB is an open source time series platform. This includes APIs for storing and querying data, processing it in the background for ETL or monitoring and alerting purposes, user dashboards, and visualizing and exploring the data and more.
Valetudo is the de-facto-standard open-source software solution for cloud-free vacuum robots empowering thousands of users. Since it was started in 2018, it has matured to a reliable fire-and-forget solution that just works.