Polka L1 Blockchain

NOT DONE!

Polka is a high-performance Layer 1 blockchain built entirely in Zig. It is designed for extreme predictability, deterministic execution, and maximum hardware utilization.

Unique Tech Stack

• Language: Zig - chosen for its lack of hidden control flow, explicit memory management, and powerful comptime features.
• Consensus: Lumina BFT - a custom variant of the pipelined HotStuff algorithm.
• Virtual Machine: AetherVM - a bespoke register-based bytecode interpreter designed for blockchain syscalls.
• Storage: Stardust-LSM - a custom Log-Structured Merge-tree storage engine optimized for Merkle-Patricia tries.

Getting Started

Prerequisites

• Zig 0.13.0 or newer.

Building

zig build

Running

./zig-out/bin/polka start

Testing

zig build test

Project Structure

• src/main.zig: Application entry point and CLI handler.
• src/node/: Core node logic and consensus engine.
• src/net/: P2P networking and gossip protocols.
• src/vm/: The PolkaVM execution engine.
• src/storage/: State storage and indexed block database.
• src/crypto/: Hashing and signature verification.