Systems engineer. I build developer tools and databases in Rust.
Current focus: compiler-grade code intelligence, embedded graph databases, and LLM inference tooling.
Code intelligence
- magellan — Deterministic code intelligence engine. Compiler-grade symbol, call-graph, and CFG extraction from LLVM IR, Java bytecode, and tree-sitter. SQLiteGraph-backed graph store for grounded LLM coding workflows.
- llmgrep — Semantic and structural code search against magellan graphs. Docs, facts, and vector search modes.
- mirage — CFG analysis: blast zones, dominance trees, refactor risk scoring, inter-procedural paths.
- forge — Rust SDK for code intelligence and AI agent workflows. Graph queries, CFG analysis, span-safe edits, ReAct agent loop, DAG workflow engine, Ollama/OpenAI/Anthropic backends.
Databases
- sqlitegraph — Embedded graph database on SQLite. HNSW vector search, Cypher-like queries, graph algorithms (BFS, A*, SCC, dominance), ACID + WAL + MVCC delta log, Python bindings.
- geographdb-core — Geographic graph database.
Agent infrastructure
- atheneum — Agent coordination graph DB. Session memory, knowledge persistence, task tracking, decision threading, cross-project routing.
- envoy — HTTP bridge for multi-agent coordination. Message routing, agent identity, pub/sub.
20 crates on crates.io/users/oldnordic — 8.5k+ downloads.
Rust · SQLite · Graph databases · HNSW · LLM inference · Code intelligence · LLVM IR · Tree-sitter · ROCm/HIP
- Technical X-ray: Attention Mechanisms Across 6 Architectures — deep-dive into attention patterns across Qwen3, Gemma4, Mistral, DeepSeek, LLaMA, and Phi architectures
Open to work. luiz.spies@gmail.com