gui-update is a plain function, so it cannot wait. It returns the work to do as values. A command is an (Event %m), synced in a fiber of its own, whose answer is the next message. A subscription is a source of messages that the model asks for: after each update the app starts the new ones and cancels the ones that are gone, by key. every sends a message on a timer, and subscription takes a source of one's own. The fibers belong to the app's scope and post their messages to the UI thread, so gui-update and view only run there. Closing the window cancels them. The prelude's path macros already use the name update, hence gui-update. 🤖 Generated with [ECA](https://eca.dev) (anthropic/claude-opus-4-8) Co-Authored-By: eca-agent <git@eca.dev> |
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| effects.bjo | ||