Iblis

Iblis is a local-first AI music workstation for Windows 11. It is built to run entirely on the user's machine — offline by default, no cloud dependency, no account or sign-in. The application is an Electron shell with a deliberately small core; almost every capability is a plugin.

Plugin-first architecture

• The shell ships only text-to-song. Image generation, stem splitting, BPM/key detection, waveform visualization, the node editor, and the file-explorer view are all hot-swappable plugins against a strict plugin contract.
• Plugins and skins are orthogonal — skins never reach into plugin logic and vice versa.
• Skins are first-class. Four ship by default — dark-3d (the default, red/blue lens styling), light-paper, infernal, and cathedral — all expressed through a single shared design-token vocabulary so themes are live-swappable without touching component code.

How it's wired

The workstation is strict TypeScript on Electron, with a Svelte + Vite renderer. Audio analysis runs in-process via essentia.js and aubio for tempo and key detection; the shipped generation engine is ACE-Step 1.5 running as a native C++/GGML sidecar (acestep.cpp), which the shell talks to through a neutral engine-provider interface that keeps ACE's own HTTP dialect confined to an explicit compatibility driver — so a second engine can plug in without leaking ACE's quirks into the host. Python is confined to an isolated, opt-in LoRA training-pack sidecar and never touches the generation path. The public site and release channel at iblis.meiuxmeiux.com is a small PHP application (phpstan level 7+) that serves a signed release catalog — a versioned JSON manifest plus detached signatures — so the installer can verify and pull the latest signed build; a second PHP app behind WebAuthn passkeys issues and revokes the product keys that gate generation, training and community Styles. All developer workflows go through just; CI runs on GitHub Actions.

Status

Iblis is in public alpha and shipping continuously. Live today: the Windows installer and auto-update channel, the signed plugin host and plugin SDK, a v2 engine registry that can target more than one generation engine at a time (a Fixture Engine ships in beta to prove the plumbing end to end), the skin/design-token system, and a track library with search, folders, sorting, and detected BPM/key badges on every row. Generation, LoRA training, and the community Styles library are gated behind a manually issued product key that activates once online and silently renews a short-lived signed lease — local library, playback, and skins never need one. Current work is engine pack 0.1.5 (a native acestep.cpp re-pin plus an experimental XL Turbo profile) and Create's capability-driven UI, which reads an engine's signed descriptor to render only the controls it actually supports. CHANGELOG.md and ROADMAP.md on the site render straight from the repo, so the public history is the real one.