# CDN Dependencies
Source: https://lumeo.nativ.sh/docs/cdn-deps
# CDN Dependencies
Satellite packages (Maps, PdfViewer, Charts, Scheduler, CodeEditor) load their JavaScript libraries from a public CDN at runtime. This page lists every dependency, explains how to override the URLs, and shows how to self-host them with the CLI for airgapped or strict-CSP deployments.
## How it works
Every satellite's JavaScript interop file uses a small helper:
function \_cdn(key, fallback) { return (window.lumeoCdn && window.lumeoCdn\[key\]) || fallback; } const MAPLIBRE\_JS = \_cdn('mapLibreJs', 'https://unpkg.com/maplibre-gl@5.7.1/...');
If `window.lumeoCdn` is set before the first component mounts, its values take priority. If not, the CDN fallback is used. Nothing else to configure — the default works out of the box.
## Self-hosting with the CLI
Run once from your Blazor project root to download every dependency into `wwwroot/lib/lumeo-vendor/`:
lumeo deps install
This also generates `wwwroot/js/lumeo-cdn-init.js` which sets `window.lumeoCdn` to the local paths. Add one script tag to your `App.razor` `` before Blazor's framework script:
### Options
Flag
Default
Description
\--lib
all
Filter by satellite name, package, or key (e.g. `Lumeo.Maps`)
\--target
auto
Project root (defaults to first parent dir with a \*.csproj)
\--no-bootstrap
false
Skip generating lumeo-cdn-init.js
\--force
false
Re-download files that already exist
\--dry-run
false
Print what would happen without writing files
## Manual override
You can point individual keys at any URL — your own CDN, a local path, or an alternative version — without running the CLI. Set `window.lumeoCdn` before Blazor boots:
Only the keys you set are overridden — unset keys fall back to the CDN default.
## Current dependencies
Loaded from [/registry/cdn-deps.json](/registry/cdn-deps.json) — regenerated by `tools/Lumeo.RegistryGen` on every CI run.