Why we ditched DOM nodes for FocusFlow's spatial canvas: DOM overhead kills 60fps when panning 1,000+ nested cards. Reflows & layout thrashing eat up the frame budget. Instead: Zero-DOM architecture with pure Canvas 2D + contiguous TypedArray spatial indexing. Smooth 60fps everywhere. 🦀

Ad-hoc post test to verify SQLite auto-record.

The math behind dampened camera inertia in canvas: critical damping at zeta=0.85 means zero overshoot but instant settle. Was stuck debugging micro-jitter on 144Hz displays until we clamped delta-time to 16.6ms max. Felt like magic when the camera finally floated like a drone. #webdev #canvas

Swapping regular JS arrays for a single pre-allocated Float32Array for the canvas transform matrix cut down GC pauses by ~40% during rapid zooming. Small change, but at 60fps, avoiding transient allocations between rAF frames is the whole ballgame. #webdev #javascript #canvas #webgl

Stop presenting complex diagrams as static slides. Today I’m open-sourcing FocusFlow: Turn massive system diagrams into 60fps cinematic stories. Direct architecture like a movie camera. 🎬 Demo: focusflow.tumio.site 4K: youtu.be/bxXpkzNV75A #opensource #webdev