Community Living and Programming

We are delighted to announce that the first Hæcker House is taking place at the CryptoCastle, a historical place right in the heart of Germany!

Coming soon...


a regal home for cypherpunks

We Offer You

Driving technology for leading businesses


Stay in a gorgeous and historic castle while working alongside other developers to build your dream projects.


Learn how to develop on æternity blockchain and create Smart Contracts with Sophia.


Explore the full potential of your capabilities working within æternity community!

Grab your laptop, pack your bags and start hæcking while enjoying summer in a real castle! Aeternity brings you, the developer, to an oasis — complete with free accommodations (including food & drinks), access to limitless educational materials, and hands on technical support driven by our team of leading developers.


We are looking for smart individuals, from all over the world, who excel at functional programming. You are invited to visit and stay at the CryptoCastle while learning about æternity, exploring Sophia Smart Contract development and showing us how good you are.


Enjoy hæcking, expanding and community building in a historical landmark!

HÆCKERS HOUSE is powered by the leading blockchain ecosystem

Founded in 2016 by Yanislav Malahov, the æternity blockchain was born from a desire to cultivate a fair Internet experience. He envisioned this space be supported by scalable open source and cryptographic software, with a deep commitment to technical excellence.

Æternity blockchain itself launched as the public æternity mainnet in 2018. It is now a blossoming community of enthusiasts supported via the æternity crypto foundation.

Engineered to scale and last, æternity is an easily accessible blockchain platform for the global public. With numerous innovative functionalities and performance far ahead of earlier blockchains, æternity allows its users and community to seamlessly venture into the new era of society, economy, and digital interactions.

Its core components are written in the functional programming and fault tolerant language Erlang, and its Sophia smart contracts are also functional.


Schloßbergstraße 56, 06636 Burgscheidungen, Germany