Driftwood
A static-first CMS that compiles Markdown to a prerendered site and a typed search index in one pass.
- TypeScript
- Bun
- SvelteKit
- SQLite
- FTS5
Personal hub
Robert Kirsammer
Performance-minded engineer. Systems, web, and the seams between them.
Selected work
Things I have shipped
Lumen
A self-hosted real-time metrics console that renders 50k points without dropping a frame.
- Rust
- axum
- WebSocket
- Svelte
- Canvas
- TimescaleDB
From the journal
Latest writing
Why I keep Bun in the toolchain
A pragmatic case for using Bun across install, workspace scripts, and local builds while deploying the public SvelteKit site on Vercel.
Shaving 400ms off first paint
How I cut Largest Contentful Paint from 2.4s to 2.0s on this site by treating the hero as a CSS problem, not a JavaScript one.
Get in touch
Building something that needs to be fast?
I care about the seams between systems and the milliseconds users feel. If that overlaps with what you are working on, the inbox is open.