Single-window development runtime for local napplet authoring.
The runtime is designed to be used from a napplet package script:
{
"scripts": {
"dev": "kehto paja --target-url http://127.0.0.1:5173 -- pnpm vite --host 127.0.0.1"
}
}
The target URL is explicit on purpose. Kehto can spawn any framework command and wait for that URL, but it does not guess which URL the framework chose. Loading that URL directly in the runtime iframe preserves the app's own HMR behavior without Vite, Svelte, React, or any other framework lock-in.
The package provides the typed option model, CLI parser, runtime server, minimal
host page, and host config surface. The browser host keeps one iframe with a
reload loop and wires that frame through a real
ShellBridge, @kehto/runtime, and deterministic development service adapters
for the current web NAP surface: relay/outbox, storage, identity, keys, config,
resource, theme, notify, media, upload, intent, cvm, and inc. shell is the
mandatory handshake domain; the deprecated legacy package path remains an
upstream compatibility alias to inc.
Environment simulation can be supplied through CLI flags or a JSON config file:
kehto paja \
--target-url http://127.0.0.1:5173 \
--identity-mode fixed \
--identity-pubkey 4444444444444444444444444444444444444444444444444444444444444444 \
--relay-mode disabled \
--capability relay:off \
--capability outbox:off \
--theme light \
--config-value 'density="compact"'
{
"targetUrl": "http://127.0.0.1:5173",
"simulation": {
"identity": {
"mode": "fixed",
"pubkey": "4444444444444444444444444444444444444444444444444444444444444444"
},
"relay": { "mode": "disabled" },
"capabilities": { "domains": { "relay": false, "outbox": false } },
"theme": { "mode": "light" },
"config": { "values": { "density": "compact" } }
}
}
Full package docs: docs/packages/paja.md.
Local authoring how-to: docs/how-tos/paja-local-authoring.md.
Generated API module: docs/api/modules/_kehto_paja.html (run pnpm docs:api).