The prior three-line CONTRIBUTING left newcomers guessing at every
non-trivial step: which Go / Node versions, where xray comes from, why
the panel goes blank when XUI_DEBUG=true is flipped on, how the Vue
multi-page setup is wired, what to do on Windows when go build trips
on the CGo SQLite driver.
Now covers prerequisites, MinGW-w64 install on Windows (niXman builds
or MSYS2), one-shot first-time setup, two frontend dev workflows with
the XUI_DEBUG asset-cache gotcha called out, the architecture and
conventions of the Vue side, a project-layout map, useful env vars,
and the PR checklist.
A VLESS or Trojan inbound on TCP with TLS or Reality can now act as a
fallback master: pick existing inbounds as children and the panel auto-
fills the SNI / ALPN / path / xver routing fields from each child's
transport, auto-builds settings.fallbacks at config-gen time, and
rewrites the child's client-share link so it advertises the master's
reachable endpoint and TLS state instead of the child's loopback listen.
Layout matches the Xray All-in-One Nginx example: master at :443 with
clients + TLS, each child on 127.0.0.1 with its own transport+clients.
Order matters (Xray walks fallbacks top-to-bottom) — reorder via the
per-row up/down arrows. Path / SNI / ALPN are exposed under a per-row
Edit toggle for the rare cases where the auto-derivation needs
overriding; otherwise just pick a child and you're done.
Backend: new InboundFallback table + FallbackService (GetByMaster /
SetByMaster / GetParentForChild / BuildFallbacksJSON); two routes
(GET / POST /panel/api/inbounds/:id/fallbacks); xray.GetXrayConfig
injects settings.fallbacks for any VLESS/Trojan TCP-TLS/Reality
inbound; GetInbounds annotates each child with FallbackParent so the
frontend can rewrite links without an extra round-trip.
Link projection covers every emission path — clients-page QR/links,
per-inbound Get URL, raw subscription, sub-JSON, sub-Clash, and the
inbounds-page link/info/QR — via a shared projectThroughFallbackMaster
on the backend and a shared projectChildThroughMaster on the frontend
that both handle the panel-tracked relationship and the legacy
unix-socket (@vless-ws) convention.
Strings translated into all 12 non-English locales.
