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Chris Zemmel.

Founder & Engineer building AI, security, health-tech, and crypto systems, shipped solo, end to end.

OneHealth, Co-Founder & CTO · pre-seed

Projects

Founder-built systems and tools

OneHealth logo
In Development

OneHealth

The operating layer and navigator for personal health

Co-Founder & CTO, pre-seed raising now

Proprietary; private alpha.

OneHealth is the system of record for a person's health, with a navigator built on top of it. Every input (lab document, wearable export, clinician's note, pharmacy slip, image) is normalised into one lifelong, source-agnostic record, where each value carries its unit, reference range, timestamp, source and quality flag, and nothing is ever overwritten. The product sits on that record: you set a destination (lose fat, lower cardiovascular risk, sleep deeper, age slower), the system computes a ranked, reasoned route, a licensed clinician approves it, and it recalculates every time your data changes. The system proposes; a human stays accountable. Built on an event-sourced canonical layer, an AI agent council, and a clinician review loop.

#HealthTech#AI#Privacy#Longitudinal#Clinical
Foundation logo
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Private

Foundation

The internal control plane I run every project from: one source of truth that imports what I built, runs it on infrastructure I own, and keeps understanding it.

Internal only, built solo, and deliberately not a product. Foundation is the meta-layer I run every other project from, so it multiplies my output across all of them rather than competing for time with any one of them.

Foundation is my personal operating layer, the meta-layer that sits underneath everything else on this page. It is not a product and it is not for sale. It is the internal control plane I built to run all of my own work from one place: every project, repo, service, and database becomes a typed resource with a desired spec, an observed status, and typed edges, so I have a single live source of truth for the whole portfolio instead of a dozen dashboards. It orchestrates the software I already trust (Docker, Postgres, Redis, Git, Cloudflare, SaaS) rather than replacing it, and a reconciliation engine converges what is running toward what I declared. On top of that sits Repository Intelligence: every repo is a living resource that Foundation statically analyses and keeps understanding, and scoped agents ride that knowledge to automate parts of my workflow and push each project forward with less manual effort. The point is leverage: one person operating like a team, shipping more across every other thing I build. Docker deploys software; Foundation understands it.

#MetaLayer#ControlPlane#AI#Orchestration#Internal
Panoptes logo
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Live

Panoptes

Autonomous, invariant-directed AI security review for chains and the systems around them

160+ targets reviewed · 24 confirmed findings

Open to a few select audit engagements. Get in touch for a scoped review of contracts, bridges, or web2 access-control.

An autonomous AI security-audit pipeline that reviews critical code the way a specialist team would, invariant by invariant, across smart contracts, bridges, light clients, ZK circuits, and the web2 systems that guard identity, authentication, and access-control. To date: 160+ targets reviewed across 29 ecosystems against 150+ vulnerability classes, with 24 confirmed findings, every one human-triaged and severity-calibrated by a human, not the model alone. That calibration is the point: in a live cross-chain bridge that has moved $100M+ across its routes, the pipeline flagged real consensus-verification gaps in the non-flagship light clients as critical; human review downgraded the severity to conditional, but the gap between the bridge's marketed trustless verification and what those clients actually check still stood (responsibly and privately disclosed). Detection-only: it finds and reports, never exploits. One engine spanning EVM, Solana, Move, Cosmos, Substrate, Bitcoin, ZK circuits, and web2 access-control.

#Security#AI#Audit#SmartContracts#MultiChain
nimimo logo
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Live

nimimo

Receive crypto in seconds, own your address like you own your name

Core open-sourced under AGPL-3.0

Mostly feature-complete, so I'm holding off on active development for now. It stays live and usable as is.

nimimo is a non-custodial crypto identity layer. One link (nimimo.com/@chris) receives Bitcoin, Ethereum, Solana, and USDC, abstracting wallet complexity away from the user. The architecture deliberately separates access, identity, ownership, and recovery, with keys remaining fully on-device. Built for security-critical flows, cross-chain usability, and reducing friction in real-world crypto transactions, with no app, no exchange, and no KYC. Ships with a lightweight, no-API-key developer SDK.

#Crypto#Identity#NonCustodial#MultiChain#OpenCore
A Million Years logo
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Live

A Million Years

A seed-grown world you explore, build in, and claim. Earth a million years after we're gone.

Built to improve my worldbuilding skills. Exploring procedural generation, atmosphere, and discovery.

A solo worldbuilding project exploring procedural generation, persistence, and discovery. Every world is generated deterministically from a single seed, producing its geography, climate, weather, life, and sky. A seed is a place rather than a session, meaning worlds can be revisited, shared, and explored together while remaining identical for everyone who visits. Build a homestead, light a watchfire, plant your standard, and leave a mark on the world. Time passes, weather changes, moons drift overhead, and every world develops its own character from the same underlying rules. Built with React, TypeScript, React Three Fiber, and a fully procedural audio system. No accounts, no downloads, and no backend required.

#WorldBuilding#ProceduralGeneration#WebGL#ThreeJS#CreativeCoding
Enjin Governance logo
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Live

Enjin Governance

Production-grade web client for Enjin OpenGov

~330 passing tests · treasury proposal passed

Live on gov.enjin.cloud. The proposal passed, and I open-sourced the client the same day at github.com/chriszemmel/enjin-governance. It's funded from the treasury at a discounted rate; I keep it low because I like contributing to the ecosystem.

A full-stack governance client for Enjin OpenGov, all backed by live chain RPC. Browse referenda, cast conviction votes, file treasury requests end to end, comment, and manage a profile, straight from the browser. Multi-wallet support (Enjin Wallet, WalletConnect, and the four major Polkadot extensions), four chains with dedicated archive RPCs, zero required indexers, SIWE-style sign-in by signature, and the EGOV1 on-chain metadata standard that lets any third party rebuild the proposal corpus, all backed by around 330 passing tests. The funding proposal passed, and the client is open-source at github.com/chriszemmel/enjin-governance.

#OpenGov#Polkadot#Treasury#Voting#Blockchain
Substreak logo
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Live

Substreak

Governance-funded reward infrastructure on Substrate

I chose not to run custodial wallet infra, so the user-facing Telegram layer was wound down. Substreak now runs as backend infrastructure; the non-custodial direction continued in nimimo.

Substreak is a Substrate reward and asset-distribution system, funded by the Enjin ecosystem's first accepted on-chain treasury proposal and featured by Enjin. It began with a Telegram interface, but rather than run custodial wallet infrastructure on users' behalf, the user-facing layer was wound down by choice. It now runs as backend infrastructure: automated reward distributions continue on schedule, and the integration APIs stay live so dependent systems keep pulling reliable Substrate data. The non-custodial direction carried forward into nimimo, which receives crypto in the browser with keys on-device instead of through managed wallets.

#Substrate#Infrastructure#Rewards#Treasury#Enjin
NFT Enterprise logo
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Discontinued

NFT Enterprise

An early social NFT platform in the Enjin ecosystem, still explorable in 3D

Still explorable inside Enjin City, my own walkable WebGL gallery (40+ floors), where this collection sits alongside other collections.

NFT Enterprise was an early social NFT platform built within the Enjin ecosystem (2021-2022), collaborating with artists and creators on NFT distribution and community-driven releases. It reached tens of thousands of NFT holders through artist collaborations, community campaigns, and QR-based NFT distribution and onboarding flows, featuring over 30 artists at its peak. Its collections can still be explored and inspected today inside Enjin City, a self-built, walkable 3D gallery where you can stroll through the full archive across 40+ floors.

#NFTs#Gallery#WebGL#Enjin#Community

Side Projects

Weekend builds, experiments, and things I tinker with. Swipe through.

  • Chris 2.0

    Live

    2026

    A personal AI brand page: pick a persona (Casual, Professional, Tech, or Flirty) and chat with an AI version of me. Multi-persona knowledge, entity-graph memory, and a Telegram bot, with an Operator mode for admin.

    Visit
  • Enjin City

    Live

    2026

    A walkable 3D WebGL gallery, built in a weekend. It preserves my old NFT Enterprise collection (many of its NFTs now lost) and renders other collections (not mine) as explorable buildings across the city. A browsable museum of NFT art.

    Visit
  • Finger Beat

    Live

    2026

    Reads your heart rate and an HRV estimate from your phone camera (PPG), entirely on-device. The solo, duel, and tournament modes are a playful layer over research I did for OneHealth into low-cost health-data capture. iPhone-optimised.

    Visit
  • CTZ Records

    Live

    Ongoing

    A just-for-fun music side-quest. The songs are AI-generated, but I direct the composition and do the sound engineering, and every release is mastered through a self-built pipeline (around 50 tracks, including a full Christmas album). Making good songs is easy; the music industry isn't, so this stays a playground.

    Visit
  • Resonara

    Private

    Ongoing

    A multisensory state-design studio: sound, rhythm, body vibration (Woojer haptics), breath, and light turned into designable, measurable sessions, built on a strict honesty model that keeps the measurable, the hypothesised, and the traditional clearly apart and never dresses up the unproven as fact.

  • Kinetara

    Private

    Ongoing

    A headless crypto market signal engine: no interface, just a cron and APIs. It scores live perpetual-futures data each hour and broadcasts a long, short, or stay-silent call to Telegram.

  • Falk

    Experiment

    Ongoing

    An AI authorship engine for entire literary universes: world-building, characters, lore, and chapters, writing internally consistent multi-book trilogies. A fun benchmark for how far AI world-building can go.

  • NFT Tipper Bot

    Discontinued

    2023-2025

    A Telegram-based NFT distribution system on Enjin that processed 100k+ on-chain transactions in production. Its scaling limits are what pushed me toward non-custodial infrastructure.

Chris Zemmel

I've been in crypto for 9 years, and I've spent them building whatever the problem actually needed: AI systems, security tooling, health-tech infrastructure, and blockchain rails, not just one lane. Right now I'm Co-Founder and CTO at OneHealth, building the event-sourced canonical record behind a health navigator, and raising a pre-seed to take it further. Alongside that I built Panoptes, an AI security-review pipeline that's reviewed 160+ targets across 29 ecosystems and flagged real consensus-verification gaps in a live cross-chain bridge that's moved over $100M. I tend to ship solo and end to end: Enjin Governance runs on roughly 330 passing tests and went open-source the same day its funding proposal passed, and nimimo's cryptographic core is open under AGPL-3.0. If any of that maps to what you're building, whether that's an engineering hire, an audit, an investment, or just a conversation, I'd like to hear from you.

Five pillars, zero filler

AI & Autonomous Systems

Multi-agent systems that decide, not just autocomplete.

  • Multi-Agent Orchestration

    • Multi-agent AI councils run by a deterministic orchestrator: typed contracts, domain routing, conflict resolution
    • Model-agnostic provider layer, swappable the day a stronger model ships
    • Reproducible inference: deterministic policy gates wrapped around probabilistic agents
  • Applied LLM Engineering

    • Use-case-specific prompt engineering, semantic pipelines, and structured extraction
    • Multimodal ingestion: documents, images, and free text normalised into typed data
    • Production AI surfaces: chatbots, analyzers, and generative document tooling

Security, Privacy & Cryptography

Built like it will be attacked, because it is.

  • Autonomous Security Review

    • Invariant-directed AI audit pipeline reviewing critical code invariant by invariant
    • One engine across EVM, Solana, Move, Cosmos, Substrate, Bitcoin, ZK circuits, and web2 access-control
    • Detection-only and human-triaged against 150+ vulnerability classes: finds and reports, never exploits
  • Applied Cryptography & Access

    • Non-custodial key management and device-bound encryption, kept fully client-side
    • SIWE-style signature sign-in, rotating httpOnly sessions, and Row Level Security
    • Hard separation of access, identity, ownership, and recovery, with open-core crypto under AGPL
  • Privacy & Compliance

    • Identity stripped at ingestion, before any model sees the data, and privacy regression-gated on every change
    • HIPAA / GDPR-style posture: encryption in transit and at rest, append-only audit logs, zero-retention model APIs
    • Data residency as a deploy choice, with a BAA / DPA posture across every processor

Blockchain & Crypto Infrastructure

9 years in crypto, shipping the rails, not the hype.

  • Industry Experience

    • 9 years of crypto experience
    • Built and ran blockchain platforms end to end: product, QA, support, DevRel, and marketing
  • On-Chain Governance

    • Production Enjin OpenGov client: conviction voting, treasury proposals, live RPC + archive reads
    • EGOV1 on-chain metadata standard with content-addressed proposal backlinks
    • Multi-wallet: WalletConnect v2 + Polkadot.js / Talisman / SubWallet / PolkaGate
  • Non-Custodial Rails

    • Single-link receive across BTC / ETH / SOL / USDC, keys on-device
    • Device-bound key encryption, recovery flows, and open-core crypto under AGPL
    • Token gating, credit systems, and usage metering

Systems & Platform Architecture

Event-sourced foundations that scale and never lie about history.

  • Event-Sourced Foundations

    • Append-only, immutable event logs as the single source of truth
    • Canonical data layers that normalise messy vendor payloads
    • State as a fold over history, answering "what changed and why" at any point
  • Full-Stack & Distributed

    • TypeScript / Next.js product surface; Python for data and ML services
    • Small, independent, containerised services that ship and scale on their own
    • REST, Webhooks, GraphQL, real-time indexing, and event-driven pipelines
  • Reliability at Scale

    • Idempotent real-time transaction handling, retries, and batch processing
    • Rate-limit-aware CDN caching with graceful fallbacks
    • 150,000+ on-chain operations handled in production
  • Human-in-the-Loop

    • Review and approval gates before any autonomous action
    • Provenance-tagged data with traceable, causally-linked outcomes

Product, Automation & Execution

One person, the whole stack, from blank repo to shipped product.

  • 0 → 1 Founder MVPs

    • Rapid architecture from idea to execution, shipped solo
    • Systems that "just work": elegant, focused, minimal config
  • Automation & Data Engineering

    • Internal tools, operational dashboards, financial projections, and reporting
    • Transaction parsing and tagging into structured pipelines; cost forecasting from history
    • Custom technical indicators, token-based access, and tiered pricing mechanics
  • Interface & Craft

    • Interfaces that adapt to user state and input type, with empathy-driven tone
    • Strong eye for minimalism, motion, and clean UI copy
  • One-Man Workforce

    • Full ownership from ideation to deployment, across every discipline
    • DevRel and community to product, QA, and marketing, whatever the role needs

Get in Touch

Hiring, collaborating, an audit engagement, or backing something, tell me what you're thinking.

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