moodbeat: a music player creating playlists from your mood

moodbeat is a desktop music player that builds a playlist from a mood you describe. You type something like “90s rock”, “rainy day in New York” or “Polish summertime”, and moodbeat asks OpenAI for 10-15 matching songs, finds them on YouTube, downloads them as MP3 and plays them in order. I often know what kind of music I want to hear, but not which songs. Streaming services have mood playlists, but they’re curated for everybody, and describing a vibe in my own words is much faster than scrolling through them. LLMs turned out to be surprisingly good music curators, so I built a small player around that idea. ...

September 29, 2026 · 5 min · 873 words · Piotr Wittchen

kayet: a minimalistic text editor for macOS

kayet is a minimalistic text editor for macOS, written in Rust with Tauri. When you’re writing, the only thing on screen is your text. The title bar, the controls and the file tree show up only when you reach for them with the mouse, and then fade away again. I write a lot of notes and drafts in Markdown - including the posts on this blog - and I wanted a place for that which is quiet. Most editors are built around code: gutters, tabs, status bars, panels, minimaps. Even the “distraction-free” modes usually feel like a mode bolted onto a busy app. I wanted the opposite: an app that is empty by default and adds things only when asked. ...

September 28, 2026 · 5 min · 998 words · Piotr Wittchen