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Following, Discover, Trending
Multiple feeds. Compose with character counter. Replies to posts, reposts, likes. Kebab-menu moderation actions for platform owners and admins. Trending panel surfacing top 5 posts by likes.
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Application · uLine
Feeds.
Public by design.
Social feeds inside the OS
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Capabilities
What you can do with Feeds.
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Encrypted social inside the OS
Posts are encrypted on your device. The server only sees ciphertext. No advertising, no off-platform tracking, no data broker.
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Owned by your community
Owner and admin roles can moderate. Communities can establish their own moderation rules without depending on a third-party social network.
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Protection
Security for Feeds.
Authentication and key exchange are post-quantum, as everywhere in UltimaOS. Feeds is a public surface by design, so its posts are not covered by the end-to-end encrypted envelope.
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Post-quantum cryptography by default
All authentication and key exchange uses NIST-standardized ML-DSA-65 (FIPS 204) signatures and ML-KEM-768 (FIPS 203) key encapsulation. There is zero RSA, zero elliptic-curve, zero classical-only crypto in the authentication path. Defeats store-now-decrypt-later attacks.
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Posts are public by design
Feeds is a social surface: posts, replies, reactions and polls are meant to be seen, so they are not covered by the end-to-end encrypted envelope. Treat anything you post here as public.
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Your identity is still yours
Posting uses the same post-quantum identity as the rest of the workspace — keys derived on your device, no password database, no advertising identifier, no behavioural profile built from what you post.
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Your keys stay on your device
Your private keys are derived in your browser from three secrets only you control, and are held in memory for the session only — never written to browser storage, never sent to the server. A new device derives the same keys locally from the same three secrets.
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Mechanics
How Feeds works.
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Open Feeds in your browser
UltimaOS runs in any modern browser — Chrome, Firefox, Safari, Edge. Nothing to install. Sign in by re-entering the three secrets your keys are derived from, and the same keys are rebuilt locally on whatever device you are using.
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What you post is published
Feeds is a public surface, so posts, replies and reactions are stored so they can be shown to others. They are not covered by the end-to-end encrypted envelope.
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Your identity stays post-quantum
You post as your uOS keypair, derived on your device. There is no password database behind it, and nothing you post feeds an advertising profile.
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Changes follow you across devices
Any change you make is uploaded and picked up by every other device you are signed in on, so Feeds looks the same wherever you open it.
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Inside the suite
How Feeds fits in the suite.
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Contacts
Post authors are Contacts entries. Following a contact feeds their posts to your Feeds.
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Files
Posts can attach Files. Attachments inherit the same encryption and access permissions.
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Account
Identity-bound moderation: only owners and admins can take kebab-menu actions on posts.
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Marketplace
Community apps can add Feeds integrations (e.g. a polls app, an events app) without leaking data.
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Get started
Get started with Feeds.
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Open Feeds in your browser
UltimaOS runs in Chrome, Firefox, Safari and Edge. Nothing to install. Sign in with your passphrase to derive your private key locally.
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Open the workspace and launch Feeds
The launcher shows every app. Feeds is right there with its capsule video preview. Click to open.
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Connect it with the rest of the suite
Feeds works alone, but it shines when combined with the rest of the UltimaOS apps. Same identity, same workspace, one place to work.
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Frequently asked
Questions about Feeds.
Is Feeds end-to-end encrypted?
Short answer
No, and deliberately so. Feeds is a public social surface: posts, replies, reactions and polls are meant to be seen, so they are not covered by the end-to-end encrypted envelope. Your identity is still the same post-quantum keypair used everywhere else, and nothing you post is used to build an advertising profile.
What cryptography does Feeds use?
Short answer
Feeds uses the same post-quantum stack as every other UltimaOS app: ML-DSA-65 (FIPS 204) for authentication, ML-KEM-768 (FIPS 203) for key encapsulation, XChaCha20-Poly1305 (RFC 8439) for symmetric encryption, and HKDF-SHA256 for key derivation.
Can I use Feeds on multiple devices?
Short answer
Yes. Sign in on any device by re-entering your three secrets and the same keys are derived locally, so your Feeds content follows you. Changes sync live across all signed-in devices.
Is Feeds GDPR-compliant?
Short answer
No, and deliberately so. Feeds is a public social surface: posts, replies, reactions and polls are meant to be seen, so they are not covered by the end-to-end encrypted envelope. Your identity is still the same post-quantum keypair used everywhere else, and nothing you post is used to build an advertising profile.
How much does Feeds cost?
Short answer
UltimaOS is free for individuals and families — permanently, not as a trial. Organizations pay per seat once early access ends, and that is what funds the free accounts. There is no per-app add-on.
Can I export my Feeds data?
Short answer
Yes. UltimaOS supports encrypted export of all your content for backup and portability. The export is encrypted to a key you control; you can store it on your own infrastructure or in a personal encrypted backup.
Is Feeds a public social network?
Short answer
Feeds is a social feed inside the encrypted workspace. Posts are end-to-end encrypted. The server does not see who follows whom, does not profile, and does not serve advertising. Communities decide their own moderation rules through owner-admin roles.