Merge pull request #430 from naturallaw777/chore/bitcoin-core-only

Replace Bitcoin Knots with Bitcoin Core

CHANGELOG.md

@@ -10,7 +10,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Fixed
-- Fix Bitcoin Knots → Bitcoin Core switch hanging in the Hub UI
   - Sessions are now persisted to `/var/lib/secrets/hub-sessions.json` so the
     browser login survives the Hub service restart that `nixos-rebuild switch`
     performs during activation. Previously the in-memory session store was
@@ -243,7 +242,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Integrated Sparrow Wallet, Bisq, and Bisq 2
 - Comprehensive Sovran Hub for service management
 - NixOS-based operating system with privacy and sovereignty focus
-- Support for Bitcoin Knots + BIP110, Electrs, LND, Ride The Lightning, BTCPay Server, and more
+- Support for Bitcoin Core, Electrs, LND, Ride The Lightning, BTCPay Server, and more
 - Server + Desktop hybrid mode with Matrix, Nextcloud, VaultWarden, and other self-hosted services
 - Automated installer with graphical GNOME desktop
 - Tor integration and onion services for all major components

README.md

@@ -73,8 +73,7 @@ Sovran_SystemsOS solves both with one operating system:
 - **Buy and sell Bitcoin peer-to-peer** with Bisq and Bisq 2. No central
   company holds user funds, and no exchange account stands between buyers and
   sellers.
-- **Verify your own Bitcoin** with a full node: [Bitcoin
+- **Verify your own Bitcoin** with a full node: [Bitcoin Core](https://bitcoin.org) and
-  Knots](https://bitcoinknots.org) and
   [Electrs](https://github.com/romanz/electrs), so your wallets connect to
   *your* node instead of a stranger's.
 - **Use Lightning** with [LND](https://github.com/lightningnetwork/lnd) and
@@ -150,13 +149,13 @@ presents and manages the features available on your system.
 
 ### Your money — Bitcoin sovereignty
 
-- Bitcoin Knots, Electrs, and Tor integration
+- Bitcoin Core, Electrs, and Tor integration
 - LND and Ride The Lightning, with [Alby Hub](https://albyhub.com) for Nostr
   Wallet Connect (NWC) connections
 - BTCPay Server
 - Sparrow Wallet, Bisq, and Bisq 2, with automatic wallet-to-node connections
 - Optional: a self-hosted [Mempool](https://github.com/mempool/mempool)
-  explorer, or Bitcoin Core in place of Knots
+  explorer
 
 Run your own Bitcoin infrastructure. Verify your own money. Trust no one.
 
@@ -202,7 +201,7 @@ Bitcoin and self-hosting infrastructure runs on the machine.
 | Mode | Best for | What you get |
 |---|---|---|
 | **Desktop** | Everyday users and computers with modest hardware | Sparrow, Bisq, and Bisq 2 for self-custody and peer-to-peer Bitcoin use |
-| **Node** | People ready to verify and operate their own Bitcoin infrastructure | Everything in Desktop, plus the full Bitcoin stack: Bitcoin Knots, Electrs, LND, Ride The Lightning, BTCPay Server, and wallet-to-node connections |
+| **Node** | People ready to verify and operate their own Bitcoin infrastructure | Everything in Desktop, plus the full Bitcoin stack: Bitcoin Core, Electrs, LND, Ride The Lightning, BTCPay Server, and wallet-to-node connections |
 | **Server + Desktop** | Bitcoiners who want the same sovereignty over their communications, cloud, passwords, and web services | The complete Node stack, plus the private self-hosted services |
 
 **Desktop: start with your keys.** Desktop is not a reduced or Bitcoin-free
@@ -688,7 +687,6 @@ rebuilds the machine into the selected declarative state.
 | Shared credentials | `modules/credentials.nix` |
 | Bitcoin and Lightning stack | `modules/bitcoinecosystem.nix` |
 | Automatic wallet-to-node connections | `modules/wallet-autoconnect.nix` |
-| Optional Bitcoin Core in place of Knots | `modules/bitcoin-core.nix` |
 | Alby Hub and Nostr Wallet Connect (NWC) on LND | `modules/nwc-wallets.nix`, `packages/albyhub/` |
 | Matrix Synapse | `modules/synapse.nix` |
 | Optional Element audio and video calling via LiveKit | `modules/element-calling.nix` |
@@ -777,7 +775,6 @@ This work helps make it possible for Sovran_SystemsOS to deliver self-custody an
 
 Sovran_SystemsOS also depends on the work of the developers and communities behind:
 
-- [Bitcoin Knots](https://github.com/bitcoinknots/bitcoin)
 - [Bitcoin Core](https://github.com/bitcoin/bitcoin)
 - [Sparrow Wallet](https://github.com/sparrowwallet/sparrow)
 - [Bisq](https://github.com/bisq-network/bisq)

app/icons/bip110.svg

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-</svg>

app/sovran_systemsos_web/server.py

@@ -149,7 +149,6 @@ SESSION_MAX_AGE         = 86400  # 24 hours
 # Sessions are persisted here so logins survive a restart of the Hub service.
 # nixos-rebuild switch restarts sovran-hub-web.service during activation (its
 # unit definition changes with every feature toggle — e.g. the Bitcoin
-# Knots → Core switch changes services.bitcoind.package, which is on the Hub's
 # PATH).  Without persistence the browser session dies mid-rebuild, the
 # /api/rebuild/status polling starts receiving 401s and the rebuild modal
 # hangs forever showing "Applying changes…".  The file lives in
@@ -318,18 +317,6 @@ FEATURE_REGISTRY = [
         "conflicts_with": [],
         "port_requirements": [],
     },
-    {
-        "id": "bitcoin-core",
-        "name": "Bitcoin Core",
-        "description": "Only one Bitcoin node implementation can be active: Bitcoin Knots + BIP110 (default) or Bitcoin Core. Enabling this replaces Knots + BIP110 with Bitcoin Core. Your timechain data is preserved.",
-        "category": "bitcoin",
-        "needs_domain": False,
-        "domain_name": None,
-        "needs_ddns": False,
-        "extra_fields": [],
-        "conflicts_with": [],
-        "port_requirements": [],
-    },
     {
         "id": "sshd",
         "name": "SSH Remote Access",
@@ -363,7 +350,7 @@ FEATURE_REGISTRY = [
 
 # Feature ids that have been removed/deprecated. The Hub must never write these
 # back into custom.nix, and should strip any it finds (see startup migration).
-DEPRECATED_FEATURE_IDS: set[str] = {"bip110"}
+DEPRECATED_FEATURE_IDS: set[str] = {"bitcoin-core"}
 
 # Map feature IDs to their systemd units in config.json
 FEATURE_SERVICE_MAP = {
@@ -371,7 +358,6 @@ FEATURE_SERVICE_MAP = {
     "haven": "haven-relay.service",
     "element-calling": "livekit.service",
     "mempool": "mempool.service",
-    "bitcoin-core": None,
     "btcpay-web": "btcpayserver.service",
     "nwc-wallets": "albyhub.service",
     "sshd": "sshd.service",
@@ -426,9 +412,7 @@ SERVICE_DOMAIN_MAP: dict[str, str] = {
 }
 
 # For features that share a unit, disambiguate by icon field
-FEATURE_ICON_MAP = {
+FEATURE_ICON_MAP: dict[str, str] = {}
-    "bitcoin-core": "bitcoin-core",
-}
 
 ROLE_LABELS = {
     "server_plus_desktop": "Server + Desktop",
@@ -447,7 +431,7 @@ ROLE_CATEGORIES: dict[str, set[str] | None] = {
 ROLE_FEATURES: dict[str, set[str] | None] = {
     "server_plus_desktop": None,
     "desktop":             {"rdp", "sshd"},
-    "node":                {"rdp", "bitcoin-core", "mempool", "btcpay-web", "nwc-wallets", "sshd"},
+    "node":                {"rdp", "mempool", "btcpay-web", "nwc-wallets", "sshd"},
 }
 
 SERVICE_DESCRIPTIONS: dict[str, str] = {
@@ -2080,7 +2064,7 @@ def _is_feature_enabled_in_config(feature_id: str) -> bool | None:
         return False  # Default off in Node role; only on via explicit hub toggle
     unit = FEATURE_SERVICE_MAP.get(feature_id)
     if unit is None:
-        return None  # bitcoin-core — can't determine from config
+        return None
     cfg = load_config()
     for svc in cfg.get("services", []):
         if svc.get("unit") == unit:
@@ -2823,21 +2807,11 @@ BITCOIN_DATADIR = "/run/media/Second_Drive/BTCEcoandBackup/Bitcoin_Node"
 _btc_sync_cache: tuple[float, dict | None] = (0.0, None)
 _BTC_SYNC_CACHE_TTL = 5  # seconds
 
-_btc_version_cache: tuple[float, dict | None] = (0.0, None)
 _BTC_VERSION_CACHE_TTL = 60  # seconds — version doesn't change at runtime
 
 # Cache for ``bitcoind --version`` output (available even before RPC is ready)
 _btcd_version_cache: tuple[float, str | None] = (0.0, None)
 
-# Cache for ``bitcoin-cli getdeploymentinfo`` output (BIP-110 live status)
-_btc_deployment_cache: tuple[float, dict | None] = (0.0, None)
-
-# Bitcoin Knots exposes BIP-110 as the `reduced_data` versionbits deployment
-# (RDTS, bit 4) in getdeploymentinfo. See Knots src/deploymentinfo.cpp,
-# src/kernel/chainparams.cpp, and doc/bips.md.
-BIP110_DEPLOYMENT_NAMES = {"reduced_data", "rdts", "bip110", "uasf-bip110"}
-BIP110_VERSIONBITS_BIT = 4
-BIP110_SUBVERSION_MARKERS = {"bip110", "uasf-bip110", "reduced_data", "rdts"}
 
 
 # ── Generic service version detection (NixOS store path) ─────────
@@ -2963,213 +2937,12 @@ def _get_service_version(unit: str) -> str | None:
     return version
 
 
-def _parse_bitcoin_subversion(subversion: str) -> str:
-    """Parse a subversion string like '/Bitcoin Knots:27.1.0/' into 'v27.1.0'.
-
-    Examples:
-      '/Bitcoin Knots:27.1.0/'          → 'v27.1.0'
-      '/Satoshi:27.0.0/'                → 'v27.0.0'
-      '/Bitcoin Knots:27.1.0(bip110)/'  → 'v27.1.0 (bip110)'
-    Falls back to the raw subversion string if parsing fails.
-    """
-    m = re.search(r":(\d+\.\d+(?:\.\d+)*)", subversion)
-    if m:
-        ver = "v" + m.group(1)
-        if "(bip110)" in subversion.lower():
-            ver += " (bip110)"
-        return ver
-    return subversion
-
-
-def _get_bitcoin_version_info() -> dict | None:
-    """Call bitcoin-cli getnetworkinfo and return parsed JSON, or None on error.
-
-    Results are cached for _BTC_VERSION_CACHE_TTL seconds since the version
-    does not change while the service is running.
-    """
-    global _btc_version_cache
-    now = time.monotonic()
-    cached_at, cached_val = _btc_version_cache
-    if now - cached_at < _BTC_VERSION_CACHE_TTL:
-        return cached_val
-
-    try:
-        result = subprocess.run(
-            ["bitcoin-cli", f"-datadir={BITCOIN_DATADIR}", "getnetworkinfo"],
-            capture_output=True,
-            text=True,
-            # This is a dashboard hint; do not make an unavailable RPC delay
-            # the entire service tile response.
-            timeout=3,
-        )
-        if result.returncode != 0:
-            _btc_version_cache = (now, None)
-            return None
-        info = json.loads(result.stdout)
-        _btc_version_cache = (now, info)
-        return info
-    except Exception:
-        _btc_version_cache = (now, None)
-        return None
-
-
-def _get_bitcoin_deployment_info() -> dict | None:
-    """Call bitcoin-cli getdeploymentinfo and return parsed JSON, or None on error.
-
-    Results are cached for _BTC_VERSION_CACHE_TTL seconds.  Never raises.
-    """
-    global _btc_deployment_cache
-    now = time.monotonic()
-    cached_at, cached_val = _btc_deployment_cache
-    if now - cached_at < _BTC_VERSION_CACHE_TTL:
-        return cached_val
-
-    try:
-        result = subprocess.run(
-            ["bitcoin-cli", f"-datadir={BITCOIN_DATADIR}", "getdeploymentinfo"],
-            capture_output=True,
-            text=True,
-            # BIP-110 is supplementary tile metadata; an RPC timeout must not
-            # block the dashboard from rendering.
-            timeout=3,
-        )
-        if result.returncode != 0:
-            _btc_deployment_cache = (now, None)
-            return None
-        info = json.loads(result.stdout)
-        _btc_deployment_cache = (now, info)
-        return info
-    except Exception:
-        _btc_deployment_cache = (now, None)
-        return None
-
-
-def _get_bip110_status() -> dict:
-    """Return a dict describing the live BIP-110 deployment/signaling state.
-
-    The returned struct has four stable keys::
-
-        {
-          "supported": bool,   # node build is BIP-110-capable
-          "signaling": bool,   # node is actively signaling / locked-in / active
-          "state": str,        # "active" | "locked_in" | "signaling" |
-                               # "not_signaling" | "unsupported" | "unknown"
-          "source": str,       # "getdeploymentinfo" | "subversion" | "none"
-        }
-
-    Resolution order (authoritative → fallback → honest unknown):
-
-    1. ``getdeploymentinfo`` (authoritative) — scan ``deployments`` for BIP-110.
-       Bitcoin Knots currently exposes BIP-110 as ``reduced_data`` (RDTS, bit 4;
-       see Knots deploymentinfo.cpp / chainparams.cpp / doc/bips.md), so matching
-       first uses known deployment names, then falls back to versionbits bit 4.
-
-    2. Subversion fallback — if getdeploymentinfo is unavailable or yields no
-       recognisable BIP-110 entry, inspect the ``subversion`` field from
-       ``getnetworkinfo``.  A case-insensitive match for known BIP-110 markers
-       (including "bip110", "uasf-bip110", "reduced_data", "rdts") is treated as
-       "signaling".
-
-    3. Unknown — if the node is entirely unreachable or neither source is
-       conclusive, return state="unknown", signaling=False, source="none".
-    """
-    _unknown: dict = {"supported": False, "signaling": False, "state": "unknown", "source": "none"}
-
-    def _deployment_bit(entry: dict) -> int | None:
-        bip9 = entry.get("bip9", {}) or {}
-        bip8 = entry.get("bip8", {}) or {}
-        bit = bip9.get("bit")
-        if bit is None:
-            bit = bip8.get("bit")
-        if bit is None:
-            bit = entry.get("bit")
-        return bit
-
-    # ── 1. getdeploymentinfo (authoritative) ──────────────────────────
-    deploy_info = _get_bitcoin_deployment_info()
-    if deploy_info is not None:
-        deployments = deploy_info.get("deployments", {})
-        if isinstance(deployments, dict):
-            matched_entry: dict | None = None
-
-            # Primary match: known deployment names (case-insensitive exact match)
-            for key, entry in deployments.items():
-                if not isinstance(entry, dict):
-                    continue
-                key_lower = key.lower()
-                if key_lower not in BIP110_DEPLOYMENT_NAMES:
-                    continue
-                matched_entry = entry
-                break
-
-            # Secondary match: versionbits bit (fallback only)
-            if matched_entry is None:
-                for _, entry in deployments.items():
-                    if not isinstance(entry, dict):
-                        continue
-                    if _deployment_bit(entry) != BIP110_VERSIONBITS_BIT:
-                        continue
-                    matched_entry = entry
-                    break
-
-            if matched_entry is not None:
-                entry = matched_entry
-
-                # bip9 / bip8 status field
-                bip9 = entry.get("bip9", {}) or {}
-                bip8 = entry.get("bip8", {}) or {}
-                status = (
-                    bip9.get("status")
-                    or bip8.get("status")
-                    or entry.get("status")
-                    or ""
-                ).lower()
-                active = entry.get("active", False)
-
-                if active or status == "active":
-                    return {"supported": True, "signaling": True, "state": "active", "source": "getdeploymentinfo"}
-                if status == "locked_in":
-                    return {"supported": True, "signaling": True, "state": "locked_in", "source": "getdeploymentinfo"}
-                if status in ("started", "defined"):
-                    # Check whether deployment is currently signaling in this period.
-                    stats = bip9.get("statistics") or bip8.get("statistics") or {}
-                    # Some Knots outputs expose only ``count`` (not explicit signaling bool),
-                    # so treat count>0 as a conservative signaling indicator for this period.
-                    count = stats.get("count")
-                    signaling = bool(
-                        stats.get("signaling")
-                        or stats.get("signalling")
-                        or (isinstance(count, int) and count > 0)
-                    )
-                    if signaling:
-                        return {"supported": True, "signaling": True, "state": "signaling", "source": "getdeploymentinfo"}
-                    return {"supported": True, "signaling": False, "state": "not_signaling", "source": "getdeploymentinfo"}
-                if status == "failed":
-                    return {"supported": True, "signaling": False, "state": "not_signaling", "source": "getdeploymentinfo"}
-                # Entry found but status unrecognised — node supports BIP-110 but state unclear
-                return {"supported": True, "signaling": False, "state": "unknown", "source": "getdeploymentinfo"}
-
-    # ── 2. Subversion fallback ─────────────────────────────────────────
-    net_info = _get_bitcoin_version_info()
-    if net_info is not None:
-        subversion = net_info.get("subversion", "") or ""
-        sv_lower = subversion.lower()
-        if any(marker in sv_lower for marker in BIP110_SUBVERSION_MARKERS):
-            return {"supported": True, "signaling": True, "state": "signaling", "source": "subversion"}
-        # Node is reachable via RPC but no BIP-110 marker found anywhere
-        return {"supported": False, "signaling": False, "state": "unsupported", "source": "subversion"}
-
-    # ── 3. Node unreachable / RPC not ready ───────────────────────────
-    return _unknown
 
 
 def _get_bitcoind_version() -> str | None:
     """Run ``bitcoind --version`` and return the raw version string, or None on error.
 
     Parses the first output line to extract the token after "version ".
-    For example: "Bitcoin Knots daemon version v29.3.knots20260508"
-    returns "v29.3.knots20260508".
-
     Works regardless of whether the RPC server is ready (IBD, warmup, etc.).
     Results are cached for 60 seconds (_BTC_VERSION_CACHE_TTL).
     """
@@ -3200,17 +2973,9 @@ def _get_bitcoind_version() -> str | None:
     return None
 
 
-def _format_bitcoin_version(raw_version: str, icon: str = "") -> str:
+def _format_bitcoin_version(raw_version: str) -> str:
-    """Format a raw version string from ``bitcoind --version`` for tile display.
+    """Format a raw version string from ``bitcoind --version`` for display."""
-
+    return raw_version
-    For the BIP110 tile (icon == "bip110") a " (bip110)" tag is appended,
-    since mainline Bitcoin Knots (29.3.knots20260508+) now includes BIP-110
-    and no longer carries a separate ``+bip110-vX.Y.Z`` suffix.
-    """
-    display = raw_version
-    if icon == "bip110" and "(bip110)" not in display.lower():
-        display += " (bip110)"
-    return display
 
 
 def _get_bitcoin_sync_info() -> dict | None:
@@ -3279,19 +3044,6 @@ async def api_bitcoin_version():
     }
 
 
-@app.get("/api/bitcoin/bip110")
-async def api_bitcoin_bip110():
-    """Return live BIP-110 deployment/signaling status from bitcoin-cli.
-
-    Always returns HTTP 200.  When bitcoind is unreachable or the node is mid-IBD
-    the response will contain ``state = "unknown"`` so the UI can render a neutral
-    badge rather than an error toast.
-    """
-    loop = asyncio.get_event_loop()
-    status = await loop.run_in_executor(None, _get_bip110_status)
-    return status
-
-
 @app.get("/api/services")
 async def api_services():
     started_at = time.monotonic()
@@ -3371,39 +3123,27 @@ async def api_services():
     dns_states_future = asyncio.gather(
         *(resolve_domain(domain) for domain in sorted(domain_names))
     )
-    # Bitcoin sync and BIP-110 are supplementary tile metadata.  Fetch each
+    # Bitcoin sync is supplementary tile metadata. Fetch it once alongside
-    # once, concurrently with the other diagnostics, instead of doing duplicate
+    # the other diagnostics instead of duplicating RPC calls per tile.
-    # RPC calls inside both bitcoind tile coroutines.
     has_enabled_bitcoin = any(
         entry.get("unit") == "bitcoind.service" and enabled
         for entry, enabled in effective_entries
     )
-    has_enabled_bip110 = any(
-        entry.get("icon") == "bip110" and enabled
-        for entry, enabled in effective_entries
-    )
     bitcoin_sync_future = (
         loop.run_in_executor(None, _get_bitcoin_sync_info)
         if has_enabled_bitcoin
         else asyncio.sleep(0, result=None)
     )
-    bip110_future = (
-        loop.run_in_executor(None, _get_bip110_status)
-        if has_enabled_bip110
-        else asyncio.sleep(0, result=None)
-    )
     (
         active_states,
         port_states,
         dns_states,
         bitcoin_sync_info,
-        bip110_status,
     ) = await asyncio.gather(
         active_states_future,
         port_states_future,
         dns_states_future,
         bitcoin_sync_future,
-        bip110_future,
     )
     listening_ports, firewall_ports = port_states
     resolved_domains = dict(dns_states)
@@ -3559,11 +3299,9 @@ async def api_services():
         if unit == "bitcoind.service" and enabled:
             raw_ver = await loop.run_in_executor(None, _get_bitcoind_version)
             if raw_ver is not None:
-                btc_ver = _format_bitcoin_version(raw_ver, icon=icon)
+                btc_ver = _format_bitcoin_version(raw_ver)
                 service_data["bitcoin_version"] = btc_ver  # backwards compat
                 service_data["version"] = btc_ver
-            if icon == "bip110" and bip110_status is not None:
-                service_data["bip110"] = bip110_status
         # ── Generic version for all services (Nix store path) ──────────
         if enabled and unit and "version" not in service_data:
             ver = await loop.run_in_executor(None, _get_service_version, unit)
@@ -3840,11 +3578,9 @@ async def api_service_detail(unit: str, icon: str | None = None):
         loop = asyncio.get_event_loop()
         raw_ver = await loop.run_in_executor(None, _get_bitcoind_version)
         if raw_ver is not None:
-            btc_ver = _format_bitcoin_version(raw_ver, icon=icon)
+            btc_ver = _format_bitcoin_version(raw_ver)
             service_detail["bitcoin_version"] = btc_ver  # backwards compat
             service_detail["version"] = btc_ver
-        if icon == "bip110":
-            service_detail["bip110"] = await loop.run_in_executor(None, _get_bip110_status)
     # ── Generic version for all services (Nix store path) ──────────
     if enabled and unit and "version" not in service_detail:
         ver = await loop.run_in_executor(None, _get_service_version, unit)
@@ -6325,8 +6061,7 @@ async def _startup_recover_stale_status():
 
 @app.on_event("startup")
 async def _startup_migrate_deprecated_features():
-    """Strip deprecated feature lines (e.g. bip110) from the Hub Managed section
+    """Strip deprecated feature lines from the Hub Managed section of custom.nix."""
-    of custom.nix so they are never re-written and do not cause stale warnings."""
     loop = asyncio.get_event_loop()
     await loop.run_in_executor(None, _migrate_strip_deprecated_features)
 

app/sovran_systemsos_web/static/css/tiles.css

@@ -178,68 +178,6 @@
   white-space: nowrap;
 }
 
-/* ── BIP-110 status badge (tile + detail modal) ───────────────────── */
-
-.tile-bip110-badge {
-  display: inline-flex;
-  align-items: center;
-  gap: 3px;
-  font-size: 0.64rem;
-  font-weight: 600;
-  border-radius: 4px;
-  padding: 2px 6px;
-  margin-top: 4px;
-  white-space: nowrap;
-  letter-spacing: 0.02em;
-}
-
-.tile-bip110-badge--active {
-  background: rgba(109, 191, 139, 0.18);
-  color: var(--green);
-  border: 1px solid rgba(109, 191, 139, 0.3);
-}
-
-.tile-bip110-badge--locked_in {
-  background: rgba(94, 173, 138, 0.15);
-  color: var(--accent-color);
-  border: 1px solid rgba(94, 173, 138, 0.3);
-}
-
-.tile-bip110-badge--signaling {
-  background: rgba(94, 173, 138, 0.12);
-  color: var(--accent-color);
-  border: 1px solid rgba(94, 173, 138, 0.2);
-}
-
-.tile-bip110-badge--not_signaling {
-  background: rgba(229, 165, 10, 0.12);
-  color: var(--yellow);
-  border: 1px solid rgba(229, 165, 10, 0.25);
-}
-
-.tile-bip110-badge--unsupported {
-  background: rgba(94, 122, 106, 0.12);
-  color: var(--grey);
-  border: 1px solid rgba(94, 122, 106, 0.2);
-}
-
-.tile-bip110-badge--unknown {
-  background: transparent;
-  color: var(--text-dim);
-  border: 1px solid var(--border-color);
-}
-
-.bip110-status-row {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-  flex-wrap: wrap;
-}
-
-.bip110-source-label {
-  color: var(--text-dim);
-  font-size: 0.75rem;
-}
 
 /* ── Service detail modal sections ───────────────────────────────── */
 

app/sovran_systemsos_web/static/js/features.js

@@ -403,10 +403,7 @@ function handleFeatureToggle(feat, newEnabled) {
     openPortRequirementsModal(feat.name, ports, proceedAfterPortCheck);
   }
 
-  if (feat.id === "bitcoin-core") {
+  if (conflictNames.length > 0) {
-    var confirmMsg = "Only one Bitcoin node implementation can be active. Enabling Bitcoin Core will replace Bitcoin Knots + BIP110 as the active node. Your timechain data will be preserved — you will not need to re-download the timechain. Continue?";
-    openFeatureConfirm(confirmMsg, proceedAfterConflictCheck);
-  } else if (conflictNames.length > 0) {
     openFeatureConfirm("This will disable " + conflictNames.join(", ") + ". Continue?", proceedAfterConflictCheck);
   } else {
     proceedAfterConflictCheck();

app/sovran_systemsos_web/static/js/helpers.js

@@ -133,17 +133,3 @@ async function apiFetch(path, options) {
   }
   return res.json();
 }
-
-
-// ── BIP-110 badge state config ────────────────────────────────────
-// Shared lookup used by tiles.js and service-detail.js.
-// Keys match the "state" values returned by /api/bitcoin/bip110.
-
-var BIP110_BADGE_CONFIG = {
-  active:        { cls: 'tile-bip110-badge--active',       label: 'Active',         title: 'BIP-110 is active on this node' },
-  locked_in:     { cls: 'tile-bip110-badge--locked_in',    label: 'Locked In',      title: 'BIP-110 is locked in and will activate shortly' },
-  signaling:     { cls: 'tile-bip110-badge--signaling',    label: 'Signaling',      title: 'Node is signaling readiness for BIP-110' },
-  not_signaling: { cls: 'tile-bip110-badge--not_signaling',label: 'Not Signaling',  title: 'Node supports BIP-110 but is not signaling this period' },
-  unsupported:   { cls: 'tile-bip110-badge--unsupported',  label: 'Not Supported',  title: 'This node build does not include BIP-110' },
-  unknown:       { cls: 'tile-bip110-badge--unknown',      label: '\u2014',          title: 'Status unavailable (node syncing or RPC not ready)' }
-};

app/sovran_systemsos_web/static/js/service-detail.js

@@ -704,20 +704,6 @@ async function openServiceDetailModal(unit, name, icon) {
       '</div>' +
       '</div>');
 
-    // Section B2: BIP-110 live status (bip110 tile only)
-    if (icon === 'bip110' && data.bip110) {
-      var bip110 = data.bip110;
-      var bip110State = bip110.state || 'unknown';
-      var bip110Cfg = BIP110_BADGE_CONFIG[bip110State] || BIP110_BADGE_CONFIG.unknown;
-      var bip110Source = bip110.source ? ' <span class="bip110-source-label">(source: ' + escHtml(bip110.source) + ')</span>' : '';
-      html += '<div class="svc-detail-section">' +
-        '<div class="svc-detail-section-title">BIP-110 Deployment Status</div>' +
-        '<div class="bip110-status-row">' +
-          '<span class="tile-bip110-badge ' + bip110Cfg.cls + '" title="' + escHtml(bip110Cfg.title) + '">' + escHtml(bip110Cfg.label) + '</span>' +
-          bip110Source +
-        '</div>' +
-        '</div>';
-    }
 
     // Section C: Domain diagnostics (domain services)
     if (data.needs_domain) {
@@ -901,9 +887,7 @@ async function openServiceDetailModal(unit, name, icon) {
       var addonBtnCls      = feat.enabled ? "btn btn-close-modal" : "btn btn-primary";
 
       // Section title: use a more specific label for mutually-exclusive Bitcoin node features
-      var addonSectionTitle = (feat.id === "bitcoin-core")
+      var addonSectionTitle = "\uD83D\uDD27 Addon Feature";
-        ? "\u20BF Bitcoin Node Selection"
-        : "\uD83D\uDD27 Addon Feature";
 
       // Description: prefer the feature's own description over a generic fallback
       var addonDesc = feat.description

app/sovran_systemsos_web/static/js/tiles.js

@@ -4,14 +4,6 @@
 // Keyed by tileId: { progress: float, timestamp: ms }
 var _btcSyncPrev = {};
 
-// ── BIP-110 badge helper ──────────────────────────────────────────
-
-function _renderBip110Badge(bip110) {
-  if (!bip110) return '';
-  var state = bip110.state || 'unknown';
-  var cfg = BIP110_BADGE_CONFIG[state] || BIP110_BADGE_CONFIG.unknown;
-  return '<div class="tile-bip110-badge ' + cfg.cls + '" title="' + escHtml(cfg.title) + '">' + escHtml(cfg.label) + '</div>';
-}
 
 function _firstElementFromHtml(html) {
   var tmp = document.createElement("div");
@@ -175,8 +167,7 @@ function buildTile(svc) {
     return tile;
   }
 
-  var bip110Badge = (svc.icon === 'bip110') ? _renderBip110Badge(svc.bip110) : '';
+  tile.innerHTML = '<img class="tile-icon" src="/static/icons/' + escHtml(svc.icon) + '.svg" alt="' + escHtml(svc.name) + '" onerror="this.style.display=\'none\';this.nextElementSibling.style.display=\'flex\'"><div class="tile-icon-fallback" style="display:none">?</div><div class="tile-name">' + escHtml(svc.name) + '</div><div class="tile-status"><span class="status-dot ' + sc + '"></span><span class="status-text">' + st + '</span></div>';
-  tile.innerHTML = '<img class="tile-icon" src="/static/icons/' + escHtml(svc.icon) + '.svg" alt="' + escHtml(svc.name) + '" onerror="this.style.display=\'none\';this.nextElementSibling.style.display=\'flex\'"><div class="tile-icon-fallback" style="display:none">?</div><div class="tile-name">' + escHtml(svc.name) + '</div>' + bip110Badge + '<div class="tile-status"><span class="status-dot ' + sc + '"></span><span class="status-text">' + st + '</span></div>';
 
   tile.style.cursor = "pointer";
   tile.addEventListener("click", function() {
@@ -244,23 +235,6 @@ function updateTiles(services) {
       var text = tile.querySelector(".status-text");
       if (dot) dot.className = "status-dot " + sc;
       if (text) text.textContent = st;
-      // Update BIP-110 badge for bip110 tiles
-      if (svc.icon === 'bip110') {
-        var badgeHtml = _renderBip110Badge(svc.bip110);
-        var badgeEl = tile.querySelector(".tile-bip110-badge");
-        if (badgeEl) {
-          // Replace existing badge in-place
-          var newBadge = _firstElementFromHtml(badgeHtml);
-          if (newBadge) { badgeEl.replaceWith(newBadge); } else { badgeEl.remove(); }
-        } else if (badgeHtml) {
-          // Insert badge after the service name
-          var anchorEl = tile.querySelector(".tile-name");
-          if (anchorEl) {
-            var newBadgeEl = _firstElementFromHtml(badgeHtml);
-            if (newBadgeEl) anchorEl.insertAdjacentElement("afterend", newBadgeEl);
-          }
-        }
-      }
     }
   }
 }

modules/bitcoin-core.nix

@@ -1,7 +0,0 @@
-{ config, pkgs, lib, ... }:
-
-lib.mkIf config.sovran_systemsOS.features.bitcoin-core {
-  # Vendored nix-bitcoin now uses nixpkgs directly; no nix-bitcoin.pkgs indirection.
-  # Use standard bitcoind from nixpkgs (override to knots if desired via pkgs.bitcoind-knots)
-  services.bitcoind.package = lib.mkForce pkgs.bitcoind;
-}

modules/bitcoin/bitcoind.nix

@@ -62,11 +62,6 @@ let
         description = ''
           The package providing bitcoind binaries.
 
-          You can use this option to select other bitcoind-compatible implementations.
-          Example:
-          ```nix
-          services.bitcoind.package = pkgs.bitcoind-knots;
-          ```
         '';
       };
       extraConfig = mkOption {

modules/bitcoinecosystem.nix

@@ -4,7 +4,7 @@ lib.mkIf config.sovran_systemsOS.services.bitcoin {
 
   services.bitcoind = {
     enable = true;
-    package = pkgs.bitcoind-knots;
+    package = pkgs.bitcoind;
     dataDir = "/run/media/Second_Drive/BTCEcoandBackup/Bitcoin_Node";
     txindex = true;
     tor.proxy = true;

modules/core/role-logic.nix

@@ -33,7 +33,6 @@
         haven = lib.mkForce false;
         mempool = lib.mkForce false;
         element-calling = lib.mkForce false;
-        bitcoin-core = lib.mkForce false;
         "nwc-wallets" = lib.mkForce false;
       };
 

modules/core/roles.nix

@@ -45,23 +45,19 @@
       haven = lib.mkEnableOption "Haven NOSTR relay";
       mempool = lib.mkEnableOption "Bitcoin Mempool Explorer";
       element-calling = lib.mkEnableOption "Element Video and Audio Calling";
-      bitcoin-core = lib.mkEnableOption "Bitcoin Core";
+      # Compatibility shim for Hub-managed settings from releases where Core
-      "nwc-wallets" = lib.mkEnableOption "Lightning Wallet Connections";
+      # was an optional replacement for the default node. Core is now always
-      rdp = lib.mkEnableOption "Gnome Remote Desktop";
+      # selected when the Bitcoin service is enabled.
-      sshd = lib.mkEnableOption "SSH remote access";
+      bitcoin-core = lib.mkOption {
-
-      # Deprecated: BIP-110 is now built into mainline Bitcoin Knots and is the
-      # default node. This option is retained ONLY so that existing machines with
-      # `sovran_systemsOS.features.bip110 = lib.mkForce true;` left in their local
-      # custom.nix continue to evaluate. It has no effect and will be removed in a
-      # future release once the Hub has cleaned up old custom.nix files.
-      bip110 = lib.mkOption {
         type = lib.types.nullOr lib.types.bool;
         default = null;
         internal = true;
         visible = false;
-        description = "(Deprecated, no-op) BIP-110 is now built into Bitcoin Knots.";
+        description = "Deprecated no-op: Bitcoin Core is the default node implementation.";
       };
+      "nwc-wallets" = lib.mkEnableOption "Lightning Wallet Connections";
+      rdp = lib.mkEnableOption "Gnome Remote Desktop";
+      sshd = lib.mkEnableOption "SSH remote access";
     };
 
     # ── Web exposure (controls Caddy vhosts) ──────────────────
@@ -103,14 +99,4 @@
     };
   };
 
-  config = lib.mkIf (config.sovran_systemsOS.features.bip110 != null) {
-    warnings = [
-      ''
-        sovran_systemsOS.features.bip110 is deprecated and has no effect:
-        BIP-110 is now built into mainline Bitcoin Knots, which is the default node.
-        You can safely remove the `sovran_systemsOS.features.bip110` line from
-        /etc/nixos/custom.nix. The Sovran Hub will also remove it automatically.
-      ''
-    ];
-  };
 }

modules/core/sovran-hub.nix

@@ -37,12 +37,9 @@ let
         { label = "How to Connect"; value = "1. Install an RDP client (e.g. Remmina, Microsoft Remote Desktop)\n2. Create a new RDP connection\n3. Enter the Address above as the host\n4. Enter the Username and Password above"; }
       ]; }
     ]
-    # ── Bitcoin Base (node implementations) ────────────────────
+    # ── Bitcoin Base ────────────────────────────────────────────
     ++ lib.optionals cfg.services.bitcoin [
-      { name = "Bitcoin Knots + BIP110"; unit = "bitcoind.service"; type = "system"; icon = "bip110";        enabled = cfg.services.bitcoin && !cfg.features.bitcoin-core; category = "bitcoin-base"; credentials = [
+      { name = "Bitcoin Core"; unit = "bitcoind.service"; type = "system"; icon = "bitcoin-core"; enabled = cfg.services.bitcoin; category = "bitcoin-base"; credentials = [
-        { label = "Tor Address — Access from anywhere via Tor Browser"; file = "/var/lib/tor/onion/bitcoind/hostname"; prefix = "http://"; }
-      ]; }
-      { name = "Bitcoin Core";           unit = "bitcoind.service"; type = "system"; icon = "bitcoin-core";  enabled = cfg.features.bitcoin-core;  category = "bitcoin-base"; credentials = [
         { label = "Tor Address — Access from anywhere via Tor Browser"; file = "/var/lib/tor/onion/bitcoind/hostname"; prefix = "http://"; }
       ]; }
     ]
@@ -132,7 +129,7 @@ let
     "caddy.service" = if pkgs ? caddy then pkgs.caddy.version else "2.8.4";
     "tor.service" = if pkgs ? tor then pkgs.tor.version else "0.4.8.12";
     "gnome-remote-desktop.service" = if pkgs ? gnome-remote-desktop then pkgs.gnome-remote-desktop.version else "46.0";
-    "bitcoind.service" = if pkgs ? bitcoind-knots then pkgs.bitcoind-knots.version else (if pkgs ? bitcoind then pkgs.bitcoind.version else "27.1.0");
+    "bitcoind.service" = if pkgs ? bitcoind then pkgs.bitcoind.version else "27.1.0";
     "electrs.service" = if pkgs ? electrs then pkgs.electrs.version else "0.10.6";
     "lnd.service" = if pkgs ? lnd then pkgs.lnd.version else "0.18.0";
     # Keep the fallbacks aligned with the vendored packages used by the
@@ -244,7 +241,7 @@ let
     # Stream output straight into $LOG (tee'd by the exec redirect above) so
     # the Hub UI shows live progress.  Capturing the output in a variable
     # kept the log empty for the entire build+activation, which made long
-    # rebuilds (e.g. the Bitcoin Knots → Core switch) look like a hang.
+    # rebuilds can otherwise look like a hang.
     nixos-rebuild switch --flake /etc/nixos --print-build-logs \
       --option connect-timeout 10 \
       --option stalled-download-timeout 90 \

modules/modules.nix

@@ -35,7 +35,6 @@
     ./nwc-wallets.nix
     ./element-calling.nix
     ./mempool.nix
-    ./bitcoin-core.nix
     ./rdp.nix
     ./sshd.nix
   ];