CH 00 · SPECIMEN

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Rafael
Calderón
Robles

LIVE

Rafael Calderón Robles

systems & performance engineer — rust · wasm · kilobytes

Libraries

Rust → WebAssembly, sized in single-digit kilobytes. Hover a figure — the plates pull apart.

FlashFuzzy

rust · wasm · ~3 kB · npm: flashfuzzy

Typo-tolerant fuzzy search in about three kilobytes of WebAssembly. Bloom-filter pre-filtering feeds a Bitap matcher — sub-millisecond queries across 100,000-record sets, zero dependencies.

docs → source ↗ npm ↗ architecture ↗

Albex

rust · wasm · webgpu · 13.5 kB

A complete document-search runtime in 13.5 kB of WebAssembly — streaming parsers, accent-insensitive matching, a WebGPU compute pre-filter sweeping 100,000 chunks on the GPU. Documents never leave the machine.

docs → source ↗

vectis-crdt

rust · wasm · rga/yata · vector clocks

A CRDT for ordered collections of mutable objects — concurrent edits converge without coordination. Replicated sequence, per-property LWW registers, binary wire format, delta sync. Powers SyncInk’s shared canvas.

docs → source ↗ live in syncink ↗

ClickType

rust · clickhouse

A ClickHouse client for Rust — bulk data ingestion, type-safe query construction, explicit memory control throughout.

source ↗

Webs

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Experience

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Stack

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Certificates

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Articles

Technical writing on performance, memory and the WebAssembly boundary — published on dev.to.

  1. 16 Patterns for Crossing the WebAssembly Boundary wasm · ffi · performance
  2. How I Built a CRDT Engine for a Collaborative Whiteboard in Rust rust · crdt · sync
  3. Real Zero-Copy: A Technical Autopsy of Cap’n Proto serialization · zero-copy
  4. Your Code Is Slow Because You Think in Objects, Not Data data-oriented design · cache
  5. Beyond FFI: Zero-Copy IPC with Lock-Free Ring-Buffers rust · ipc · lock-free
  6. How Cloudflare Replaced NGINX with Rust, Tokio and Pingora rust · networking
  7. From WAL to WASM: Local-First Sync with Postgres & SQLite postgres · sqlite · local-first
  8. Rust as a Universal Accelerator rust · ffi · interop
all 15 articles on dev.to ↗

Portrait

CH 07 · silver on paper

Letters, commissions and bug reports are welcome. The fastest route is email; the public one is GitHub.

rafaelcalderonrobles@gmail.com linkedin.com/in/rafael-c github.com/RafaCalRob

Set in Bricolage Grotesque, Fraunces & JetBrains Mono · hand-built, no trackers · © 2026 Rafael Calderón Robles · bdovenbird.com