COSLU software with the brand baked into the UI. Runs 100% locally — no cloud, no account. What we ship when we are our own client — open source from the first commit.
The Markdown editor that fits in 3.8 MB.
Tauri + Rust, no Electron, no cloud, no login. Split-pane, full GFM, Shiki syntax highlighting — the same engine VS Code uses. Sub-second cold start, 80 MB RAM at idle.
Real-time transcription, on your PC, in ~200 ms.
Whisper large-v3-turbo with CUDA acceleration + Silero VAD. Global F8 hotkey, minimalist floating pill, hybrid paste (clipboard + SendInput) that works even in stubborn apps. Zero network — audio never leaves your machine.
Opens any file. No cloud, no account, no error.
PDF, DOCX, XLSX, PSD, Parquet, SQLite, glTF, EPUB, recursive ZIP — 80+ formats in a 12 MB binary. Heavy formats load on demand, so the app starts fast regardless of catalog size. Whatever the viewer can't render falls back to text. Whatever isn't text falls back to hex. **Nothing ends in error.**
Public libraries, tools and experiments from c0st4-h3n. Fork, star, open a PR.