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.
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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.
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.
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.