fix multithread

web/script/build-wasm.sh

@@ -37,12 +37,14 @@ fi
 
 # Step 1: Build WASM
 #
-# Target features and link args (atomics, shared memory, TLS exports) come
-# from `web/.cargo/config.toml`, which also enables `-Z build-std` so std is
-# rebuilt with atomics support.
+# Single-threaded build: `+bulk-memory` only. The multithreaded web backend
+# is disabled in `web/src/lib.rs` (gpui's wasm workers freeze their JS event
+# loop in `Atomics.wait`, which breaks nostr-sdk's spawn_local-driven client
+# and the WebSocket transport), so no atomics/shared-memory flags here.
 echo -e "${GREEN}Step 1: Building WASM...${NC}"
 cd "$PROJECT_ROOT"
 export CARGO_TARGET_DIR="$PROJECT_ROOT/target"
+RUSTFLAGS='-C target-feature=+bulk-memory -C link-arg=--max-memory=4294967296' \
 cargo build --target wasm32-unknown-unknown $RELEASE_FLAG
 
 # Determine the build directory