Intelligence.
Engineered.

Hellenic Development is a developer infrastructure company founded in 2025 by Gerasimos Maropoulos and Christos Papadopoulos. It builds and maintains three products: Plexon AI, a private desktop AI assistant; Iris, an open-source web framework for Go; and Hellenic Identity, a self-hosted identity and access management server. The company also takes on consulting work in privacy-preserving AI, Go systems architecture, team training, and rapid product development, mainly for teams in finance, healthcare, and government.

Gerasimos Maropoulos founded Hellenic Development and serves as its CEO. He created the Iris web framework for Go in 2016, which has since gathered 25,000+ GitHub stars, and he has worked in Go for over a decade. He publishes as "kataras" on GitHub. Christos Papadopoulos is the co-founder and CMO, responsible for brand and strategic direction.

Hellenic Development ships three products. Plexon AI is a desktop AI assistant for Windows, macOS, and Linux that works inside 64 apps with your own accounts, runs 156 agents across 8 domains, and keeps your data on your own machine. Iris is an open-source HTTP/2 web framework for Go, licensed BSD-3-Clause, with MVC, WebSocket support, and dependency injection. Hellenic Identity is a self-hosted IAM server implementing OAuth 2.0 and OpenID Connect with post-quantum cryptography. Two more products are in development: RNS, a multi-tenant push notification gateway, and Patrol, an error tracking and log aggregation service.

Yes. Iris is open source under the BSD-3-Clause license, which permits commercial use, modification, and redistribution, provided the copyright notice travels with the code. There is no paid tier, no license key, and no cap on requests or environments. The source lives at github.com/kataras/iris and the API reference is published on pkg.go.dev. Iris was first released in 2016 and is maintained by Gerasimos Maropoulos through Hellenic Development, so the framework and the company that backs it share the same author.

No. Plexon AI runs on your machine and your files, chats, memory, and connector credentials stay there, encrypted on local disk. The Plexon server is stateless and holds no copy of any of it, so it cannot read it. App connectors sign in under your own account and call those apps from your computer. With 6 modes (Code, Plan, Ask, Auto, Orchestrator, Spec) and 10 providers to choose from, the one thing that never changes is where the work happens. Plexon AI is available for Windows, macOS, and Linux.

Yes. Hellenic Identity is designed to be self-hosted, which is the point of it: organisations that cannot send identity data to a third party run it on their own infrastructure. It implements OAuth 2.0 and OpenID Connect, and it uses quantum-resilient cryptography, specifically ML-KEM (Kyber) for key encapsulation and ML-DSA (Dilithium) for digital signatures. It ships with user and group management and an administration panel.

Hellenic Development offers four consulting services. AI Integration and Privacy Architecture covers deploying AI systems with verifiable privacy guarantees in regulated environments. System Architecture and Engineering covers Go backends, microservices, and security-first design. Team Enablement and Knowledge Transfer covers hands-on workshops in Go, AI tooling, and systems architecture. Rapid Product Development covers production-quality MVPs delivered in weeks. Engagements start at hellenic.dev/get-in-touch.

No. The hellenic.dev website loads no analytics service, no tracking pixels, and no advertising cookies, and it sets no cookies of its own. The site is static HTML, so there is no session to follow you between pages and no profile to sell. The only information you ever send is what you type into the contact form and submit deliberately. Hellenic Development measures the site through Google Search Console instead, which reports search queries and indexing status without identifying anyone. The full policy is published at hellenic.dev/privacy.