How-tos

One task per page, with the exact calls. Each assumes you have the kernl source and have run pnpm install && pnpm build (Run the shell); for a guided first pass, start with the tutorials instead.

How-to	What it does
Change the guard profile	Switch the shell between strict, balanced and relaxed, and what a profile can and cannot change.
Grant and revoke	What the shell asks when an applet opens, what each answer changes, and the Kernl calls behind the grants panel.
Change the shell's layout	Change the spacing, choose which layouts the shell offers, and register a layout of your own.
Write your own window manager	Replace how windows are placed, focused and stacked, and the one rule a window manager must keep: tell the guard the truth about what the person can see.
Embed kernl core	Implement KernlHost, call createKernl and mount an applet in an iframe your own page owns.
Add a messaging provider	Define a provider and its backend, and register it in the shell's messaging registry.
Add a bridge backend	Supply a backend that turns an unavailable bridge, such as downloads, into a working one.
Add a cache backend	Keep events in a store of your own, from an applesauce event database or your own rows, in front of the browser's defaults.
Deploy	Build the site, shell, docs and API reference into one static artifact and publish it to kernl.run on bunny.net.
Publish packages	Configure npm and JSR, validate artifacts, release and retry.