- fs.watch's async 'error' event had no listener, crashing the preview
server on EMFILE (exhausted OS watch handles)
- moveKeyframeInScript/resizeKeyframedTweenInScript/removeAllKeyframesFromScript
required object-form keyframes: {"0%": {...}}, silently no-opping on
array-form keyframes: [{...}, {...}]
- a keyframe diamond click's auto-synthesized native click event bubbled
to the ancestor clip's onClick, which toggles selection off when the
clip is already selected (the state every diamond click happens in)
- the clip's trim-resize handles (z-index 4) visually and functionally
covered any keyframe diamond within their 14px edge strip
- synthesizeFlatTweenKeyframes didn't recognize a collapsed
duration:0 + immediateRender static hold (what remove-all-keyframes
produces) as non-animated, so it kept showing a phantom diamond after
Delete All Keyframes
- resolveMediaStartSeconds's fast path for elements with their own
data-start discarded the host composition's inherited start offset,
so a video nested inside a sub-composition played from the root
timeline's time instead of holding until its parent scene began
Fixes#1838
When installed via npx, `hyperframes dev` now starts a standalone
Hono HTTP server that serves the pre-built studio SPA and implements
the project API (file listing, read/write, preview bundling,
sub-composition rendering, runtime serving, SSE file watching).
Three modes are auto-detected:
1. Monorepo dev (running from .ts source) → spawn Vite (existing)
2. Local @hyperframes/studio installed → spawn Vite via package (new)
3. Default → embedded Hono server (new, zero extra deps needed)
Also patches the studio SPA to use EventSource SSE fallback when
Vite HMR is unavailable (production/embedded builds).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Miguel Angel Simon Sierra