Sites like weils.net

Tasks.org: documentation and product pages for Tasks, a free open-source Android task management app with CalDAV sync

Thorium Browser, a fast Chromium-based web browser for Linux, Windows, macOS, Android and Raspberry Pi, with developer tools and demos by its maker

Fedilab, a free open-source multi-account client for Mastodon, Pleroma, Friendica, Pixelfed and PeerTube, with documentation and related projects

The Nobara Project is a Fedora-based Linux desktop distribution tuned for gaming, streaming and content creation, with downloadable ISO editions

JUnit, a open-source testing framework for Java and the JVM, with documentation, release notes and project information

Gadgetbridge, a free open source Android app for pairing and managing smart watches, bands and other wearable gadgets without vendor apps

The MacPorts Project's official site offering a package manager for installing open-source software on macOS and other Unix-like systems

A security-focused, compartmentalizing desktop operating system based on Xen, with project news, hardware compatibility list and documentation

Joplin, an open source note-taking app with multimedia notes, web clipping and end-to-end encrypted sync, developed by Laurent

Manjaro, a Linux distribution built on Arch with rolling releases, with news and team pages by its core developers

Zulip, an open-source team chat application with threaded async messaging, API documentation and help center, by Zulip developers

PlantUML, an open-source tool that draws UML diagrams from simple text descriptions, with a Q&A forum and German edition

Lemmy is a free, open-source, decentralised discussion platform with threaded comments, run by its communities and self-hosted servers

Syncthing, an open-source continuous file synchronisation tool, with project donation and foundation information pages

Alpine Linux, an independent lightweight Linux distribution built on musl libc and busybox, with its release announcements and documentation

Neovim, a Vim-based open-source text editor project with extensible Lua plugins, documentation and developer resources

Keyoxide, a decentralized tool for creating and verifying online identities using cryptographic keys and profile pages

Zed, an open-source multiplayer code editor from Zed Industries with optional AI agent integration and the Agent Client Protocol

Godot Engine, a free open-source 2D and 3D game engine with a project blog and forum, with news by Thaddeus Crews and others

Calibre, a free open-source e-book management software for converting, organising and syncing e-books across devices

The official website of Thunderbird, a free open-source desktop and mobile email, calendar and contacts app