# x0x — post-quantum coordination and communication layer > Fetch SKILL.md first, then install and verify x0x locally. ## Docs - [Conceptual Guide](https://x0x.md/docs/conceptual-guide-for-humans.md): A conceptual guide to x0x for humans - [Overview](https://x0x.md/docs/overview.md): What x0x is and when to use it - [Install](https://x0x.md/docs/install.md): Installation and setup - [Verify](https://x0x.md/docs/verify.md): Signature verification and trust - [API Map](https://x0x.md/docs/api.md): At-a-glance daemon API routes - [API Reference](https://x0x.md/docs/api-reference.md): Full REST and WebSocket reference - [Patterns](https://x0x.md/docs/patterns.md): Common usage patterns - [Compared](https://x0x.md/docs/compared.md): How x0x compares to alternatives - [Troubleshooting](https://x0x.md/docs/troubleshooting.md): Common issues and fixes - [Uninstall](https://x0x.md/docs/uninstall.md): Clean removal - [Vision](https://x0x.md/docs/vision.md): What can be built on x0x - [Security](https://x0x.md/docs/security.md): Cryptography and security model - [Diagnostics](https://x0x.md/docs/diagnostics.md): Health, status, and doctor flows - [SDK Quickstart](https://x0x.md/docs/sdk-quickstart.md): Daemon-first operator quickstart - [Local Apps](https://x0x.md/docs/local-apps.md): Building on top of a local x0xd daemon - [Agent Card](https://x0x.md/docs/AGENT_CARD.md): A2A agent card format and discovery - [GPG Signing](https://x0x.md/docs/GPG_SIGNING.md): Release signing and verification details - [Verification](https://x0x.md/docs/VERIFICATION.md): Release verification workflow ## Primers - [Primer: Identity](https://x0x.md/docs/primers/identity.md): Identity concepts and operator mental model - [Primer: Messaging](https://x0x.md/docs/primers/messaging.md): Gossip and direct messaging basics - [Primer: Trust](https://x0x.md/docs/primers/trust.md): Trust levels and contact handling - [Primer: Groups](https://x0x.md/docs/primers/groups.md): Groups, invites, and private collaboration - [Primer: Files](https://x0x.md/docs/primers/files.md): File transfer workflow - [Primer: Coordination](https://x0x.md/docs/primers/coordination.md): Task lists, shared state, and coordination - [Primer: Apps](https://x0x.md/docs/primers/apps.md): How local apps integrate with x0xd ## Key resources - [SKILL.md](https://x0x.md/skill.md): Canonical install and trust entrypoint - [SKILL.md.sig](https://x0x.md/skill.md.sig): Detached signature for the current release skill - [trust.json](https://x0x.md/trust.json): Machine-readable install and verification metadata - [Agent card](https://x0x.md/.well-known/agent.json): A2A discovery metadata - [Release manifest](https://x0x.md/release-manifest.json): Current release archive inventory and checksums - [Saorsa public key](https://x0x.md/SAORSA_PUBLIC_KEY.asc): Release verification key - [Full docs](https://x0x.md/llms-full.txt): Public docs concatenated for large context windows - [Source](https://github.com/saorsa-labs/x0x): Upstream repository