matrix-sydent 2.5.1-1 (amd64 binary) in ubuntu jammy

 Sydent is a reference implementation of the Matrix Identity Server API
 in Python, supporting:
 .
   - Validation of 3PIDs (email and MSISDNs) for signup and discovery
   - Binding of 3PIDs to MXIDs (for discovery)
   - Lookup of 3PIDs to MXIDs
   - Storing unresolved 3PID invites.
   - Replication of assertions across a closed federation.
 .
 Instances currently run at matrix.org and vector.im; meanwhile others
 are free to run their own but they will not be able to participate in
 the global directory lookup table.
 .
 N.B. use of the Identity Server API is stricly optional in Matrix - it's
 only used to resolve 3PIDs to MXIDs.
 .
 Matrix is an open standard for interoperable, decentralised, real-time
 communication over IP. It can be used to power Instant Messaging, VoIP/WebRTC
 signalling, Internet of Things communication or anywhere where's a need for
 a standard HTTP API for publishing and subscribing to data whilst tracking the
 conversation history.
 .
 In Matrix, every user runs one or more Matrix clients, which connect through
 to a Matrix homeserver. The homeserver stores all their personal chat history
 and user account information, much as a mail client connects through to an
 IMAP/SMTP server.