# Sovereign OS

For applications on top of ARTIS it's essential to provide Energy-LEGO's, just like they are needed for DeFi (Open Finance) on Ethereum and xDai Chain.

{% content-ref url="sovereign-operating-system/digital-wallet-minerva" %}
[digital-wallet-minerva](https://docs.artis.eco/about/sovereign-operating-system/digital-wallet-minerva)
{% endcontent-ref %}

{% content-ref url="sovereign-operating-system/decentralized-id-layer" %}
[decentralized-id-layer](https://docs.artis.eco/about/sovereign-operating-system/decentralized-id-layer)
{% endcontent-ref %}

{% content-ref url="sovereign-operating-system/decentralized-storage-layer" %}
[decentralized-storage-layer](https://docs.artis.eco/about/sovereign-operating-system/decentralized-storage-layer)
{% endcontent-ref %}