Configuration & extension

Typed options, the Rust/WASM init.rs, and the plugin host.

Topic	What it covers
Options	Typed configuration: :set syntax, layered resolution (defaults / TOML / runtime / mode contributions / per-buffer), groups, and how to find every registered option.
init.rs	Configuring lattice in Rust/WASM with init.rs: where it lives, how it loads and reloads, and worked examples for event handlers, custom grammar (commands / motions / text-objects / operators / ex-commands), keybindings, and options.
The leader	The emacs-keys tribute: a default-on, configurable leader binding emacs-style buffer / file / window chords on top of vim modal editing.
When a key does nothing	A key does nothing: how to tell a missing binding from a keystroke the terminal never sent.
Plugins	The WASM plugin host: loading + managing plugins, the capability + fuel + crash-isolation security model, the :plugins manager view, boundary-trace observability, and the plugin API introspection commands.
Core plugins
Org-mode	Org-mode in lattice: what the org plugin gives you, how to install it, the `org.*` options, and where its full reference lives.