InfluxDB is designed to handle high write and query loads, and is optimized for storing and analyzing time-stamped data, such as metrics, events, and logs. InfluxDB supports SQL-like query language and has a built-in HTTP API for data ingestion and retrieval. It's commonly used for IoT and industrial applications where time-series data is involved. Telegraf is a server agent that collects, processes, and aggregates metrics and events data from different sources, such as systems, databases, and APIs, and outputs the data to various outputs, such as InfluxDB, Prometheus, Elasticsearch, and many others.

Hyperion is an opensource Ambient Lighting implementation. It supports many LED devices and video grabbers.

HyperHDR is a highly optimized open source ambient lighting implementation based on modern digital video and audio stream analysis.

Homer is a simple and lightweight static homepage generator that allows you to create and manage a home page for your server. It uses a YAML configuration file to define the layout and content of your homepage, making it easy to set up and customize. The generated homepage is static, meaning it does not require any server-side processing, making it fast and efficient to serve. Homer is designed to be a flexible and low-maintenance solution for organizing and accessing your services and information from a single, centralized location.

Homepage is a self-hosted dashboard solution for centralizing and organizing data and information.

Homebridge is a popular open-source software platform that enables you to integrate smart home devices and services that do not natively support Apple's HomeKit protocol into the HomeKit ecosystem. This allows you to control and automate these devices using Siri, the Home app, or other HomeKit-enabled apps, making it easy to bring together a variety of different devices into a unified smart home system. With Homebridge, you can expand the capabilities of your smart home, unlocking new possibilities for automating and controlling your devices and systems.

HiveMQ CE is a Java-based open source MQTT broker that fully supports MQTT 3.x and MQTT 5.

Heimdall Dashboard is a self-hosted, web-based dashboard for managing and monitoring the health of applications and servers. It allows you to keep track of the status of your systems from a single, centralized location, and receive notifications when things go wrong. With Heimdall Dashboard, you have full control over your data and can customize it to meet your specific needs. Self-hosting the dashboard gives you the flexibility to run it on your own infrastructure, making it a suitable solution for organizations that prioritize data security and privacy.

grocy is a web-based self-hosted groceries & household management solution for your home. It helps you keep track of your groceries and household items, manage your shopping list, and keep track of your pantry, recipes, meal plans, and more.

Grafana is a data visualization and monitoring platform that enables users to query, visualize, alert on and understand metrics, logs, and other data sources. It integrates with various data sources, including Prometheus, InfluxDB, Elasticsearch, and many others, to present a unified view of the data and enable users to create insightful and interactive dashboards.