SadServers is an excellent test platform where you get a broken Linux server and fix it. It's a fantastic way to sharpen your Linux and DevOps troubleshooting skills with real-world scenarios, almost like a LeetCode for infrastructure.
Visit sadservers.com →
Stirling PDF is a robust open-source PDF editing platform, usable as a desktop app or self-hosted server. It's ideal for Linux users needing local PDF manipulation without external services.
LosslessCut is an FFmpeg GUI that allows for extremely fast, lossless trimming, cutting, and other operations on video, audio, and subtitle files. It's my go-to for quickly extracting parts of videos without re-encoding and quality loss.
systemd by example is an interactive playground for learning systemd directly in your browser. It's a safe way to experiment with systemd units without risking your actual system.
Espanso is a privacy-first, cross-platform text expander that makes typing faster across all applications. I appreciate its file-based configuration and support for shell scripts, extending beyond basic snippet expansion to include emoji support.
Darling is essentially Wine for macOS applications on Linux, acting as a translation layer to run Darwin binaries directly. It implements a complete Darwin environment for compatibility.
Shellfirm intercepts risky shell commands, both default and user-defined, prompting a challenge for double verification. It's a pragmatic safety net for preventing accidental damage from common mistakes or AI agent missteps in various environments.