Answers + Journal
Direct answers, development notes, and project context for ZeiCoin.
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ZeiCoin is an experimental open-source Layer 1 blockchain written in Zig. It is currently a DevNet project, not a live MainNet cryptocurrency, and the public content here is meant to answer practical questions about the technology, status, and roadmap.
Quick answers
Short answers first, with more detailed project notes below.
ZeiCoin is an experimental open-source Layer 1 blockchain written in Zig. The project currently runs as a DevNet and focuses on learning, protocol design, CPU mining, wallet tooling, and blockchain infrastructure rather than a production MainNet launch.
No. ZeiCoin is currently on DevNet and should be treated as experimental software. MainNet is planned only after the network core, P2P behavior, difficulty adjustment, security work, and testing period are stable enough.
There is no fixed MainNet launch date yet. The timeline depends on finishing stable P2P networking, dynamic difficulty adjustment, security hardening, extended TestNet testing, and an external audit. A realistic MainNet date should only be announced after those milestones are proven, not guessed early.
Yes. ZeiCoin uses RandomX proof-of-work with CPU-friendly mining in the current DevNet implementation. The project includes automatic mining mode selection and keeps ASIC resistance as an important design direction.
Zig gives ZeiCoin fast compile times, explicit memory control, strong tooling, and a practical systems-programming environment for blockchain experiments. The project also tracks Zig 0.16 development and related standard library changes.
Start with the roadmap for current status, then review the GitHub README for implementation details. The resource hub collects direct answers and project notes as the public documentation grows.
Project notes
ZeiCoin exists as an experimental open-source Layer 1 blockchain for exploring blockchain engineering, AI-assisted development, and the Zig programming language. It is currently a DevNet project, not a live MainNet cryptocurrency.
ZeiCoin started as a project to test AI-assisted development tooling in early 2025. The first version of a blockchain written in Zig worked, but it was very basic. After reading many whitepapers, I came to the conclusion that I was far behind any modern blockchain. From there, I started adding one feature at a time, and the codebase went through probably three to five major refactors along the way.
The current blockchain is a test platform for exploring new technology and AI-assisted development in Zig. Zig is still early in its development, and its standard library continues to evolve over time. Zig 0.16.0 is shaping up to be a significant release, and migrating toward it recently removed two dependencies from the codebase while opening the door to post-quantum cryptography support.
The biggest technical challenges so far have been consensus and networking. Those two modules still shape most of the hard work ahead: peer discovery, block synchronization, fork handling, and making sure nodes agree on the same chain under real network conditions.
Looking back, blockchain technology is far more complex than I expected. A simple implementation can now be built in a week, but a blockchain that is secure, reliable, and trusted by users will require considerably more time and effort.
Ryo