Ethereum’s Vitalik Buterin details his 2026 “self-sovereign” tech stack, swapping Big Tech apps for encrypted, open-source and local privacy tools.
Ethereum cofounder Vitalik Buterin declared 2026 to be the “year we take back lost ground in computing self-sovereignty,” starting with his own devices.
In a Friday post on X, he laid out the software changes he has made to reduce reliance on data-hungry, centralized platforms.
The “two major changes” to the software he used in 2025 were switching “almost fully” to Fileverse, an open-source, decentralized document platform — a kind of privacy-preserving Google Docs — and switching “decisively” to Signal as his primary messaging app.
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