The crate-extraction findings Phase 6 deferred the alknet-http rework on the grounds that the QuicStream wrapper (44 lines) is a necessary adapter. The finding was right about the symptom, wrong about the cause: the root is that the leaf type is split, so every consumer re-joins or bypasses. Five abstractions exist for one concept (BiStream trait vestigial in code, Connection, SendStream/RecvStream, WsStream, MpscSendStream/MpscRecvStream). ADR-092 resurrects ADR-007's BiStream as a concrete newtype leaf (the bounds survive, the trait becomes a concrete struct for Pin<&mut Self> projection), moves the join into core's quinn/iroh BidiStreamSource impls once, and removes the per-handler wrappers: - HttpAdapter::handle drops QuicStream (44 lines) and QuicStreamDuplex (38 lines); serve_io is unchanged. - WebSocket runs through Connection::from_bidi + the call-protocol handler. WsBidiStream (~50-80 lines) implements AsyncRead/AsyncWrite over axum WS binary messages. WsStream trait, drive_ws_session loop, and ~150 lines of dispatch glue removed. ADR-044/048's 'WS message stream is BiStream-satisfying' becomes literal. - Tunnel/SSH handlers call tokio::io::split(bidi) for their two pumps (same stdlib idiom as TcpStream/TlsStream). ADR-078 preserved. - SendStream/RecvStream collapse to thin newtypes (quinn enum dispatch gone); retained for ADR-074 into_sub_streams() and channels reassembly (ADR-071 unidirectional sub-streams). - 'VPN-like without being a VPN' over WS in v1 becomes real: the webtransport.md path, over WS, now. WASM SSH parser implements BiStream over a WS-message adapter on the browser side. - WebTransport h3 extraction recorded as a future channels-variant move enabled by the unification (out of scope per ADR-044). Amends ADR-065 (from_bidi primary, from_stream escape hatch), ADR-070 (accept_bi returns BiStream), ADR-074 (ChannelBidiStreamSource::accept_bi returns BiStream; into_sub_streams unchanged). ADR-077 two-mode TTY design preserved. Resolves the findings.md Phase 6 deferral. Three open questions recorded with defaults (WsBidiStream home, SendStream/RecvStream long-term home, from_stream vs from_bidi primacy) — none blocking.
Alknet
Status: Pre-alpha — This project is undergoing a major architectural pivot to an ALPN-as-service model. The previous implementation has been archived and a greenfield rebuild is in progress.
A self-hostable networking toolkit built on QUIC+TLS with ALPN-based protocol dispatch. Each protocol handler (SSH, SFTP, Git, HTTP, DNS, messaging, call protocol) registers an ALPN string on a shared endpoint. The ALPN negotiation during the TLS/QUIC handshake routes connections to the correct handler before any application bytes are read.
Core Insight
A service IS an ALPN. One endpoint, one port, many protocols — dispatched by the TLS handshake, not by application-level peeking or separate listeners.
Crates
| Crate | Status | Description |
|---|---|---|
alknet-vault |
stable | Local key vault: BIP39/SLIP-0010/AES-GCM key derivation and encryption |
alknet-core |
planned | ProtocolHandler trait, ALPN router, auth/identity, config |
alknet-ssh |
planned | SSH handler (russh), SOCKS5, port forwarding |
alknet-call |
planned | JSON-RPC call protocol (EventEnvelope framing) |
alknet-fs |
planned | Content-addressed file storage (iroh-blobs backend) |
alknet-sftp |
planned | SFTP handler (russh-sftp protocol core) |
alknet-git |
planned | Git smart protocol handler (gix) |
alknet-http |
planned | HTTP handler (axum, REST API, MCP) |
alknet-dns |
planned | DNS handler (hickory-proto, pkarr) |
alknet-msg |
planned | E2E encrypted messaging, mixnet support |
alknet |
planned | CLI binary (assembles and registers handlers) |
Documentation
- ALPN-as-service architecture — pivot proposal
- Cleanup plan — greenfield transition plan
- SDD process — spec-driven development process
- Research references — iroh, russh, russh-sftp deep dives
Reference implementation (previous architecture) is preserved at /workspace/@alkdev/alknet-main/.
License
Licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.