About Linggen - Local RAG
Linggen is a local macOS app engine that bundles several skills as tabs, including system health, personal finance, music library, and cross-host memory. It is for users who want these functions in one app served by a local daemon.
Key features
- 01Bundled skills presented as app tabs
- 02macOS disk, app, and cache checks
- 03Bank export imports and spending reports
- 04Music tracklists and tagged libraries
- 05Cross-host memory via ling-mem
Use cases
- 01Reviewing disk, apps, and caches on a Mac
- 02Summarizing spending from bank exports
- 03Organizing tracks into a tagged music library
- 04Using durable memory across hosts
Configuration
Local server config is the same for every client. Copy it into your client’s MCP config file.
We haven’t collected a package or remote endpoint for this server. Follow the instructions in the project README.
Tools
Local servers expose tools only once running on your machine, and the maintainer has not provided a tool list.
Details
From the project READMELinggen Releases
Public download host for the Linggen macOS app.
Linggen is a local AI app engine — the core runtime (engine source) hosts skills as full-featured native apps. The app bundles the engine and its skills into one
.app, served from a local daemon (http://127.0.0.1:9527) with all state under~/.linggen/.
Install
curl -fsSL https://linggen.dev/install-app.sh | bash
Curl rather than a browser download on purpose: macOS attaches a quarantine
attribute to anything a browser fetches, and these builds are ad-hoc signed
rather than notarized, so a downloaded copy would be blocked on first launch.
The installer fetches the tarball, checks its sha256, and puts Linggen.app
in /Applications.
On first launch the app starts the bundled ling engine on 127.0.0.1:9527,
or reuses a healthy daemon already listening there. The daemon shuts itself
down after 5 minutes idle. Updates arrive through the app's own updater.
What's in it
One app, one launcher, several skills as tabs:
- Mac Shifu — macOS health: disk, apps, caches, plus iPhone/Mac photo and video cleanup
- CFO — personal finances: imports bank and credit exports, builds spend reports, learns your categories
- DJ — vibe to tracklist to a tagged library, synced to your phone
- Memory — durable cross-host memory on the
ling-memdaemon
Mac Shifu (formerly Sys Doctor) and CFO were once separate downloads. They are
skills inside the one app now, and linggen.dev/install-sys-doctor.sh and
install-cfo.sh redirect here.
Releases
| Tag pattern | Where | What |
|---|---|---|
linggen-v<version> | this repo | the macOS app tarball + .sha256 |
<version>, no prefix | linggen/linggen | the ling engine binary, macOS and Linux |
v<version> | linggen/linggen-memory | the ling-mem memory daemon |
Only the app is hosted here. It bundles its own copy of the engine, so the app version and the engine version move independently.
Builds are macOS arm64, ad-hoc signed, not notarized. The app source lives in
linggen/linggen-app (private); the engine, the skills, and the memory daemon
are public.
Comments
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An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.