Avian uses mostly Open Source Software for all critical functions, if you're living in the UK please consider writing to your MP to support this bill
UK Digital Sovereignty Strategy https://action.openrightsgroup.org/protect-britain%E2%80%99s-digital-backbone-%E2%80%94-ask-your-mp-act
UK Digital Sovereignty Strategy https://action.openrightsgroup.org/protect-britain%E2%80%99s-digital-backbone-%E2%80%94-ask-your-mp-act

Protect Britain’s Digital Backbone — Ask Your MP to Act
Take action! What’s the problem? The UK’s digital backbone. The cloud services, data systems, and platforms that underpin government, public services, and democratic processes is dangerously reliant on a small number of foreign tech companies. Much of this critical digital infrastructure is controlled by US-based firms such as Amazon, Google, Microsoft, and Palantir, whose services are embedded across government and the public sector. Other key providers are based in Israel and China. Together, these companies operate systems that are essential to how the UK state functions day to day.