Ark server is a setting again; an address on another server falls back to Lightning.

Settings → Advanced → Ark server: coinos, Second (ark.second.tech) or a
custom server, per network — the stored choice is honoured on mainnet
again. Ark state is kept per server, so switching hides but never loses
coins; the card says what the current server holds and asks before letting
go. After a switch the reusable address, the nostr advert and the payment
name's ark= instruction follow the new server.

Sends between servers can't be arkoor, so an Ark address that names a
different server (its first bytes hash the server key) is treated as no
Ark address at all in the pay ladder — a coinos name or npub then goes
over Lightning by itself — and a pasted one is refused with the reason.

Co-Authored-By: Claude Fable 5.1 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Tmfg8k5f3TbNJS34qiqHAp

1 files changed, 2 insertions, 4 deletions

diff --git a/src/api.js b/src/api.js
index ea63fdc..c0ecb4b 100644
--- a/src/api.js
+++ b/src/api.js
@@ -271,10 +271,8 @@ export function arkPresets(net = getNetwork()) {
   return ARK_PRESETS_BY_NET[net] || ARK_PRESETS_BY_NET.mainnet;
 }
 export function getArkProviderId(net = getNetwork()) {
-  // Mainnet always rides coinos — the provider picker was removed from
-  // Settings, so a stale stored choice must not silently win. Dev networks
-  // still honor a stored id (regtest/mutinynet testing needs it).
-  if (net === 'mainnet') return 'coinos';
+  // A stored choice wins on every network (Settings → Advanced → Ark server
+  // offers coinos, Second, or a custom server); the default is coinos.
   try {
     const id = localStorage.getItem(nk(ARK_PROVIDER_KEY, net));
     if (id && arkPresets(net).some((p) => p.id === id)) return id;