cadence

Cadence is the target-independent foundation for full-stack Go+ interfaces. A program owns one model, one closed message algebra, one update function, and explicit commands. Browser, server, terminal, and native GUI packages interpret that same program without moving domain policy into JavaScript or widget code.

v0.4.0: Elm Architecture across targets

• program.Logic defines Init, Update, and Subscriptions.
• Opaque commands cover emit, batch, sequence, delay, cancellation, and typed effects; interpreters decide how target capabilities execute.
• sel.Element is a semantic element language for controls that translate cleanly across browser, terminal, and GUI targets.
• Immutable semantic styles separate intent from CSS, Lip Gloss, or Gio details.
• Components provide child model/message lifting without giving child code access to parent state.

Execution plans, not mode flags

Plan separates five orthogonal decisions: initial render, state owner, activation, transport, and fallback. Hosts accept only ValidatedPlan, so incoherent combinations cannot reach an interpreter.

plan := cadence.Hydrated(cadence.ActivateLoad{})
live := cadence.LiveServer(cadence.ActivateLoad{})
floor := cadence.WithoutClient(plan)

Presets include static, deferred-server, streamed-server, hydrated, client-only, and server-owned live execution. The universal-floor fallback remains a law: disabling the client produces readable server-rendered content rather than a permanent loading shell.

Architecture

Install

go get goforge.dev/cadence@v0.4.0

Cadence is MIT licensed and authored in .gp sources. Consumers compile the checked-in generated Go and do not need Go+ installed.