modern SSR-first UI
generated target objects from .heml
hemplate partials for issue lanes, cards, and inspector panels
native form posts wired through generated form/handle resources
multi-target tuple-composed IntoEffect responses
generated slot updates instead of selectors
root-scoped runtime application without selector lookups
page-enhancer navigation with native link fallback
SSE server push into a generated slot
drag-and-drop lane moves persisted by typed server handlers through the hemx runtime
an explicit advanced opaque canvas island fed by a generated event helper, without teaching hemx core about the widget
no user-authored browser JavaScript in hemx-managed UI; the island JavaScript is a leaf-widget escape hatch

Verification:

cargo test -p hemx-techdemo --test e2e
cargo test -p hemx-techdemo --test browser_e2e
mutest -p hemx-techdemo -f examples/techdemo/src/main.rs -F 'registry' -j 2 --timeout 90 -- --test e2e