Development Update — August 30

A performance campaign against the route finder, end to end: from per-request graph builds and path-copy storms down to landmark routing that composes far routes through the mesh’s natural hubs. Around it, range-splitting extends to HTTPS, routes gain a transport-type exclusion knob, and route calc learns to report how much disjoint capacity actually exists between two visors.

Skywire: The Route Finder Gets Fast

The route finder answered every source/destination pair with an exhaustive search over the dense transport graph, rebuilt per request. 4378 replaces path-copying with parent-pointer BFS, 4380 shares one background-refreshed route graph across requests, 4385 memoizes weighted route results per graph, and 4386 byte-sorts the search keys to kill string-conversion churn. 4390 caps the campaign with landmark routing: routes between every node and the highest-degree hubs are precomputed once per graph, and a far pair is answered by composing source-to-hub and hub-to-destination — with a shallow direct search keeping the optimal answer for near pairs and a full search as fallback, so nothing regresses. Composing via different hubs yields disjoint mux legs for free. On the visor side, 4382 builds local-route lookups once per discovery snapshot rather than per dial, and 4383 pins the transport feed so route calculation stops re-handshaking.

Skywire: Range-Splitting Reaches HTTPS

4359 adds TLS-terminating HTTPS range-splitting to the SOCKS5 proxy — strictly opt-in, behind a locally generated root the operator must install — extending yesterday’s plain-HTTP GET striping to the traffic that actually dominates. 4360 creates that root at startup rather than first dial, and 4375 keeps a split chunk retrying through a tunnel rotation instead of failing the download.

Skywire: Choosing Transports for Routes

4368 adds route_exclude_transport_types — hard-exclude a transport type from route building — and 4373 applies it to the mux candidate path too. 4361 and 4362 add route calc --capacity, reporting the disjoint, multiplexable route ceiling from the two visors’ actual transport intersection. 4370 raises the WebRTC transport’s SCTP receive window off its 1 MiB default and surfaces dead channels.

Skywire: Mux Polish

4372 caps per-leg FEC-block striping so a stalled leg stays FEC-recoverable, 4376 holds at least two active download legs and applies the floor to a live group, 4377 parks rather than removes data-stalled legs under a stuck frontier, 4354 confines the upload to the primary leg when there is no direct leg, and 4374 returns route groups in a stable order. 4388 resets the default routing policy to none — the adaptive engine remains a choice, not a surprise.

Skywire: Status, CLI and CI

On the proxy status page, 4363 makes the route graph opt-in and pauses it when hidden, 4366 renders the standby route fan with real endpoints, and 4367 stabilizes leg order so the tree stops reshuffling. 4364 reads CXO-backed discovery URLs straight through instead of via a stale disk cache, 4365 makes a bare ut online query fetch one day rather than thirty, and 4371 surfaces direct/payload/directional counters in the mux-info JSON. 4379 backs off a spinning accept loop, 4358 auto-reloads the browser interstitial once the route is up, and 4356 and 4357 make CI fail when the committed wasm-visor blob is stale against its source — with the routine blob refreshes landing alongside.