aviso

Web Push for rastrillo apps: subscriptions a signed-in person enrols from their browsers, one VAPID key per app, and a sender that fans a payload out to those devices. An addon — amadan.net/rastrillo/aviso depends on rastrillo, never the reverse.

go get amadan.net/rastrillo/aviso cat "$(go list -m -f '{{.Dir}}' amadan.net/rastrillo/aviso)/SKILL.md"

SKILL.md is the authoring doc: how to wire it, send, and write the browser and worker halves. docs/installable.md is the recipe for making the app installable, which iOS requires before it will deliver push. example/ is the smallest app that wires every seam.

What it is not

It does not decide who is told what — recipient selection and payload meaning are the app's. It does not cache, work offline, or own the service worker's lifecycle. It does not retry, queue, or report delivery; a push service's acceptance is where its knowledge ends.

Design: docs/superpowers/specs/2026-09-07-aviso-web-push-design.md, extracted from Eleven messenger's push transport. Gate: make ci.