Projects
I like doing recreational programming and just working on random things that interest me. Try recreational programming!
ML/AI
- chibillm: Zero dependency C++ LLM inference engine with custom Metal kernels. Currently it's able to run Qwen3-0.6B, but I'm attempting to get Qwen3.8-27b running at least somewhat efficiently. The engine itself has zero dependencies but the HTTP library for serving the completion endpoint and JSON parsing have dependencies.
Security and cryptography
- c25519: Side-channel-attack-resistant Ed25519 implementation in C that also includes SHA-512. It focuses on practical performance with generally good results while passing a broad set of test vectors.
- newspeak: End-to-end encrypted chat in Rust implementing Signal's Post-Quantum Extended Diffie-Hellman and Double Ratchet. Built with
tonicfor gRPC, SQLite for storage,dalekprimitives, and aratatuiterminal UI.
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- pqxdh: Go library for Post-Quantum Extended Diffie-Hellman and XEdDSA. Extends X3DH with ML-KEM to provide stronger resistance against future quantum adversaries. It relies on a hybrid approach as ML-KEM is relatively recent and shouldn't be blindly trusted.
- secp256k1: secp256k1 signing and verification implementation with Jacobian coordinates and Montgomery representation to reduce expensive operations. Includes deterministic RFC6979 nonces. Implemented in Rust.
- merkle: Merkle tree implementations in Go and C using SHA-256, including generation and verification of inclusion proofs.
- schnorr: Schnorr signatures implemented over secp256k1 curve in 100 lines of Python. Serves as an educational implementation without dependencies (related to math).
Programming languages and parsing
- kukka: Small and fast parser combinator library in Rust that uses static dispatch to avoid trait-object overhead. It's mature enough to write performant parsers for JSON and CSV in a few lines.
- ff: A single-file C compiler that is able to compile itself into ARM64.
- mc: A simplistic C compiler written in Go with lexical analysis, parsing, IR generation, and x64 assembly output. Stopped working on this after getting a MacBook.
Distributed systems and databases
- haystack: Distributed file system inspired by Facebook's Haystack architecture. Uses a Raft-based directory cluster to map files to append-only volumes and coordinates replication across store servers.
- distsql: Distributed consensus layer built on top of SQLite for coordinating state across nodes.
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- levelsql: Minimal SQL implementation that stores relational data as key-value pairs on LevelDB.