references:

• client/plugos/*
• plugs/builtin_plugs.ts

SilverBullet at its core is bare bones in terms of functionality, most of its power it gains from plugs and [Space Lua](Space Lua).

Plugs are an extension mechanism that runs “plug” code in the browser using web workers.

Plugs can hook into SB in various ways:

• Define new commands and keybindings
• Respond to various events triggered either on the server or client-side
• Run recurring and background tasks.
• Define their own extension mechanisms through custom events

Each plug runs in its own sandboxed environment and communicates with SB via syscalls that expose a vast range of functionality. Plugs can be loaded, unloaded, and updated without having to restart SilverBullet itself.

Plugs are distributed as self-contained JavaScript bundles (ending with .plug.js). SilverBullet will load all core plugs bundled with SB itself (listed below), as well as any additional plugs stored in the _plug folder in your Space|space.

Available plugs

The SilverBullet ‘Plugs’ category has a list of third-party plugs you can try.

• SilverSearch: implements a better full text search
• TreeView: adds a tree-view to your UI
• PDF: enables viewing and annotation of PDF documents with PDF.js
• PlantUML: adds plantuml diagram rendering
• Draw.io: adds drawio diagram rendering and editing
• Excalidraw: adds excalidraw diagram rendering and editing

Development

Want to develop your own plugs? Have a look at Plugs/Development.