The manifest baked bitcoin-knots:8332 into DAEMON_URL. Nodes whose backend runs under the bitcoin-core name (and any future variant without a knots DNS alias) left electrumx permanently disconnected — 'connection problem' forever and a block index stuck at 0. The startup script now picks the first backend name that resolves on archy-net and falls back to bitcoin-knots. Catalog regenerated (catalog manifests override disk ones fleet-wide); this regen also embeds the recently-merged barkd/Ark manifest for the first time. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>