Added optional Explorer/Indexer

2026-05-20 15:43:38 -04:00
parent 2cdc4a5f34
commit e41ff31221
27 changed files with 1431 additions and 70 deletions
@@ -37,13 +37,21 @@ through a browser-based terminal.

 | Field | Value |
 | --- | --- |
-| Image | `docker.io/horologger/spaces` |
+| Spaces image | `docker.io/horologger/spaces` |
+| PostgreSQL image | `docker.io/postgres:16.3` |
+| Indexer-Go image | `docker.io/golang:1.23-alpine` |
+| Explorer-UI image | `docker.io/node:20-alpine` |
 | Architectures | `linux/amd64`, `linux/arm64` |
-| Entrypoint | StartOS-managed (image entrypoint is **not** used) |
+| Entrypoint | StartOS-managed (image entrypoints are **not** used directly) |

-The image bundles `spaced`, `space-cli`, `bitcoin-cli`, `gotty`, `node`, `npm`,
-`screen`, and a small shell environment. StartOS ignores the image's
-`docker_entrypoint.sh`; daemons are defined in `startos/main.ts`.
+The Spaces image bundles `spaced`, `space-cli`, `bitcoin-cli`, `gotty`, `node`,
+`npm`, `screen`, and a small shell environment. StartOS ignores the Spaces
+image's `docker_entrypoint.sh`; daemons are defined in `startos/main.ts`. The
+PostgreSQL image is the upstream `postgres:16.3`, launched via its official
+`docker-entrypoint.sh`. The Indexer-Go image is the upstream
+`golang:1.23-alpine`, used both to compile the indexer's `sync` binary +
+`goose` migrator (one-time, at install) and to run the compiled binaries on
+each start.

 ## Volume and Data Layout

@@ -51,53 +59,115 @@ The image bundles `spaced`, `space-cli`, `bitcoin-cli`, `gotty`, `node`, `npm`,
 | --- | --- | --- |
 | `/data` | `main` | Spaces data directory (`SPACED_DATA_DIR`), wallets, indexes, and `store.json` |
 | `/data/mainnet/.cookie` | `main` | Spaced RPC cookie (auto-generated by `spaced` at startup) |
-| `/data/store.json` | `main` | StartOS-managed credentials (web-UI password + bitcoind RPC user/password) |
+| `/data/store.json` | `main` | StartOS-managed credentials (web-UI password, bitcoind RPC user/password, PostgreSQL user/password/database) |
+| `/data/postgres` | `main` | PostgreSQL data directory (`PGDATA`). Owned by uid 999 (`postgres`). The whole `main` volume is backed up, so the database is included. |
+| `/data/explorer-indexer` | `main` | Spaces-protocol explorer-indexer source (`spacesprotocol/explorer-indexer`), fetched from GitHub on first start. Contains `cmd/sync/`, `pkg/`, `sql/schema/`, `go.mod`, etc. |
+| `/data/explorer-indexer/bin/sync` | `main` | Compiled indexer sync binary (`go build ./cmd/sync`). |
+| `/data/explorer-indexer/bin/goose` | `main` | Compiled goose migrator (`go install github.com/pressly/goose/v3/cmd/goose`). Used by `indexer-migrate` to apply `sql/schema/*.sql`. |
+| `/data/explorer-indexer/.installed-sha` | `main` | Marker file recording the pinned commit + build-ID currently extracted. If the build-ID in the package code differs from the marker, the next start wipes and re-fetches. |
+| `/data/explorer-ui` | `main` | SvelteKit explorer source (`randomlogin/explorer`), fetched on first explorer-enable. Contains `src/`, `static/`, `server.js`, `package.json`, etc. |
+| `/data/explorer-ui/build` | `main` | SvelteKit node-adapter build output. `node build` (i.e. `node /data/explorer-ui/build`) runs the production server. |
+| `/data/explorer-ui/node_modules` | `main` | npm dependencies (~300-500 MB). Re-fetched on `Reset Explorer UI State`. |
+| `/data/explorer-ui/.installed-sha` | `main` | Marker file for the pinned explorer commit + build-ID. |

 ## Installation and First-Run Flow

 On the first install, StartOS:

 1. Seeds `store.json.password` with a random 32-char alphanumeric admin password
-   and creates a critical task that points the user at **Show Web UI Credentials**
+   and creates a critical task that points the user at **Show Space-CLI Web UI Credentials**
   so the password can be copied before login.
 2. Seeds `store.json.btcAuth` with a random `spaces:<random>` RPC credential
   pair and creates a critical cross-service task on **Bitcoin** that runs
   bitcoind's `generate-rpc-dependent` action to register the credentials in
   `bitcoin.conf`.
-3. Launches `spaced` as a managed daemon (no `screen`, no shell auto-start).
-4. Launches the `gotty` web terminal once `spaced` is up.
+3. Seeds `store.json.dbAuth` with a random PostgreSQL password (username
+   `postgres`, database `spacesprotocol_explorer`). No task is created — the
+   credentials are only used internally by the embedded daemon.
+4. Runs the `postgres-chown` oneshot to create `/data/postgres` with the right
+   ownership, then launches the PostgreSQL daemon on loopback 5432.
+5. Seeds `store.json.spacedAuth` with a random `spaces:<random>` credential
+   pair. Spaced is configured to require these via `SPACED_RPC_USER` /
+   `SPACED_RPC_PASSWORD` (cookie auth is **not** used in this package), so the
+   gotty terminal's `spaces` alias and the indexer share a single auth path.
+6. Seeds `store.json.enableExplorer = false`. The embedded explorer
+   (PostgreSQL + Go indexer) is **opt-in**.
+7. Launches `spaced` as a managed daemon (no `screen`, no shell auto-start)
+   and the `gotty` web terminal once the bashrc oneshot completes.

-The user is **not** prompted to choose a chain or RPC mode -- this package is
+The user is **not** prompted to choose a chain or RPC mode — this package is
 mainnet-only.

+### Enabling the embedded explorer
+
+Run the **Enable Embedded Explorer** action. That flips
+`store.json.enableExplorer = true` and the service auto-restarts with the full
+daemon graph:
+
+8. Postgres-chown oneshot creates `/data/postgres` with correct ownership.
+9. PostgreSQL daemon starts on loopback `127.0.0.1:5432`.
+10. `indexer-fetch` downloads the pinned `spacesprotocol/explorer-indexer`
+    tarball into `/data/explorer-indexer` and applies two compatibility
+    patches for our older spaced binary (see Limitations).
+11. `indexer-build` runs `CGO_ENABLED=0 go build -o /data/explorer-indexer/bin/sync ./cmd/sync`
+    and `GOBIN=/data/explorer-indexer/bin go install github.com/pressly/goose/v3/cmd/goose@v3.24.3`.
+12. `indexer-cleanup-legacy` checks for and removes leftover TS-indexer schema
+    if present (from earlier package versions).
+13. `indexer-migrate` runs `goose ... up` to apply `sql/schema/*.sql`.
+14. `indexer` daemon (`/data/explorer-indexer/bin/sync`) starts polling
+    bitcoind + spaced and writes blocks, transactions, spaces, rollouts, etc.
+    to PostgreSQL.
+15. `explorer-fetch` downloads the pinned `randomlogin/explorer` tarball into
+    `/data/explorer-ui` (skipped if marker already matches).
+16. `explorer-install` runs `npm install` + `PUBLIC_BTC_NETWORK=mainnet npm run build`
+    to produce `/data/explorer-ui/build/`. Skipped if `build/index.js` already
+    exists. First-time install can take 1-3 minutes for the npm download.
+17. `explorer-ui` daemon (`node /data/explorer-ui/build`) starts on port 3000.
+    The SvelteKit app reads exclusively from PostgreSQL — it does not talk to
+    spaced or bitcoind directly. The UI link will appear in the StartOS
+    dashboard alongside the gotty terminal.
+
+Run **Disable Embedded Explorer** to turn it back off; on-disk data at
+`/data/postgres`, `/data/explorer-indexer`, and `/data/explorer-ui` is
+preserved.
+
 ## Configuration Management

 | StartOS-Managed | Upstream-Managed |
 | --- | --- |
 | Web-UI username / password (`admin` + generated password) | `spaced` runtime tuning via `SPACED_*` env vars in the image |
 | Bitcoin RPC username / password (registered on bitcoind) | Wallet creation, bidding, and registration -- all driven via `space-cli` inside the terminal |
-| Chain selection (locked to `mainnet`) | `space-cli` flags and subcommands |
+| PostgreSQL username / password / database (loopback only) | `space-cli` flags and subcommands |
+| Chain selection (locked to `mainnet`) |  |
 | Spaced data directory and RPC bind |  |

 ## Network Access and Interfaces

 | Interface | Port | Protocol | Exposure | Notes |
 | --- | --- | --- | --- | --- |
-| Web UI (gotty terminal) | 8080 | HTTP | LAN / `.local` / Tor / clearnet (via StartOS) | Basic auth: `admin:<store.password>` |
-| Spaced RPC | 7225 | HTTP JSON-RPC | **Loopback only** | Internal use, cookie-authenticated |
+| Space-CLI Web UI (gotty terminal) | 8080 | HTTP | LAN / `.local` / Tor / clearnet (via StartOS) | Basic auth: `admin:<store.password>` |
+| Explorer Web UI | 3000 | HTTP | LAN / `.local` / Tor / clearnet (via StartOS) | SvelteKit explorer. No built-in auth — relies on StartOS interface exposure controls. Only useful while the embedded explorer is enabled (otherwise nothing is listening). |
+| Spaced RPC | 7225 | HTTP JSON-RPC | **Loopback only** | Internal use, static-cred-authenticated via `SPACED_RPC_USER` / `SPACED_RPC_PASSWORD` from `store.json.spacedAuth` |
+| PostgreSQL | 5432 | Postgres wire protocol | **Loopback only** (`listen_addresses=127.0.0.1`) | Username/password from `store.json.dbAuth`; full `DB_URL` exported into the web terminal |

 ## Actions

 | ID | Name | Visibility | Availability | Purpose |
 | --- | --- | --- | --- | --- |
-| `reset-password` | Reset Web UI Password | Enabled | Any | Regenerates the web-UI password and restarts the terminal daemon |
-| `show-credentials` | Show Web UI Credentials | Hidden | Any | Surfaces the current `admin` username + masked password (launched by the first-install task) |
-| `show-password` | Show Web UI Password | Enabled | Any | Same as `show-credentials` but visible in the actions list, for routine re-display of the current admin credentials |
+| `reset-password` | Reset Space-CLI Web UI Password | Enabled | Any | Regenerates the Space-CLI Web UI password and restarts the terminal daemon |
+| `show-credentials` | Show Space-CLI Web UI Credentials | Hidden | Any | Surfaces the current `admin` username + masked password (launched by the first-install task) |
+| `show-password` | Show Space-CLI Web UI Password | Enabled | Any | Same as `show-credentials` but visible in the actions list, for routine re-display of the current admin credentials |
 | `set-bitcoin-rpc` | Set up Bitcoin RPC | Enabled | Any | Re-invokes bitcoind's `generate-rpc-dependent` with the stored credentials. Safe to call repeatedly. |
 | `sync-status` | Sync Status | Enabled | Only running | Runs `space-cli getserverinfo` inside the daemon container and returns the JSON output |
 | `reset-spaced-state` | Reset Spaced State | Enabled | Any | Deletes `/data/mainnet/` so spaced resyncs its index from spaces' anchor. Preserves `store.json` (passwords + RPC credentials). Use when spaced crash-loops on a stale or corrupt index. |
 | `export-wallet` | Export Wallet | Enabled | Only running | Runs `space-cli exportwallet /data/mainnet/wallets_backup/default.json` and surfaces the resulting JSON as a masked/copyable result. The file is also persisted inside the volume at that path. |
 | `import-wallet` | Import Wallet | Enabled | Only running | Accepts a pasted JSON payload (textarea), writes it to `/data/mainnet/wallets_backup/default.json` (rotating the existing file to `.bakNNN`), rotates `/data/mainnet/wallets/default` to `.bakNNN`, then runs `space-cli importwallet` + `loadwallet`. |
+| `enable-explorer` | Enable Embedded Explorer | Enabled (hidden when already on) | Any | Sets `store.enableExplorer = true` and triggers a service restart so the full daemon graph (postgres + indexer + indexer-sync HC) takes effect. |
+| `disable-explorer` | Disable Embedded Explorer | Enabled (hidden when already off) | Any | Sets `store.enableExplorer = false` and triggers a service restart so the indexer and postgres daemons stop. On-disk data at `/data/postgres` and `/data/explorer-indexer` is preserved. |
+| `show-db-credentials` | Show Database Credentials | Enabled | Any | Surfaces the PostgreSQL username, password, database, and full `DB_URL` (all copyable; secrets masked). Credentials exist regardless of whether the explorer is currently enabled. |
+| `reset-db-state` | Reset Database State | Enabled | Any | Deletes `/data/postgres` so the next start re-initializes an empty database. Warning-gated. `store.json` is preserved. |
+| `reset-indexer-state` | Reset Indexer State | Enabled | Any | Deletes `/data/explorer-indexer` so the next start re-fetches the indexer source and rebuilds the sync + goose binaries. Useful when bumping the pinned commit. PostgreSQL data is preserved. Warning-gated. |
+| `reset-explorer-state` | Reset Explorer UI State | Enabled | Any | Deletes `/data/explorer-ui` so the next start re-fetches the SvelteKit source and rebuilds the bundle. PostgreSQL data is preserved. Warning-gated. |

 ## Backups and Restore

@@ -110,23 +180,57 @@ the same idempotent init logic runs and reuses the existing credentials in

 | ID | Display | Grace period | Behaviour |
 | --- | --- | --- | --- |
+| `postgres` (daemon `ready`) | Database | 60 s | TCP listen on `127.0.0.1:5432` |
 | `spaced` (daemon `ready`) | Spaced RPC | 120 s | TCP listen on `127.0.0.1:7225` |
+| `indexer` (daemon `ready`) | Indexer Process | 60 s | Daemon liveness only — health is reported by `indexer-sync` below |
+| `explorer-ui` (daemon `ready`) | Explorer Web UI | 60 s | TCP listen on `0.0.0.0:3000`. Only present when embedded explorer is enabled. |
 | `web-terminal` (daemon `ready`) | Web Interface | default | TCP listen on `0.0.0.0:8080` |
-| `sync` (standalone) | Spaced Sync | 300 s | Exec `space-cli getserverinfo`; reports `success` when `ready=true`, otherwise `loading` with progress percentage |
+| `sync` (standalone) | Spaced Sync | 30 s | Exec `space-cli --output-format json getserverinfo`; reports `success` when `ready=true && progress=100%`, otherwise `loading` with progress percentage |
+| `indexer-sync` (standalone) | Indexer Sync | 60 s | `psql` the `blocks` table for `MAX(height) WHERE orphan = FALSE AND height >= 0`; cross-check against spaced's current tip via `space-cli getserverinfo`. `success` when within 5 blocks of the tip; otherwise `loading` with explicit lag. |

 ## Limitations and Differences

 1. **Mainnet only.** Testnet, testnet4, signet, and regtest are not exposed.
-2. **The image's `docker_entrypoint.sh` is not used.** Its auto-start of
+2. **The Spaces image's `docker_entrypoint.sh` is not used.** Its auto-start of
   `spaced` inside `screen` would conflict with the StartOS-managed daemon.
-3. **Web UI is a terminal, not a graphical app.** All Spaces operations happen
+3. **Space-CLI Web UI is a terminal, not a graphical app.** All Spaces operations happen
   via `space-cli` (aliased as `spaces` inside the shell).
-4. **Only port 8080 (gotty) is exposed.** Spaced RPC, and any other ports
-   present in the image (e.g. 22253, 3000, 5173, 8081) are not bound.
+4. **Only port 8080 (gotty) is exposed externally.** Spaced RPC (7225) and
+   PostgreSQL (5432) are loopback-only, and any other ports present in the
+   image (e.g. 22253, 3000, 5173, 8081) are not bound.
 5. **Bitcoin Core 31.x is the only supported dependency.** Earlier majors are
   not allowed by the manifest version range.
 6. **The web terminal is independent of spaced.** Gotty stays reachable even
   when `spaced` is crash-looping, so you can always shell in to diagnose.
+7. **The embedded explorer is opt-in.** Fresh installs run in spaces-only
+   mode (spaced + gotty). Run **Enable Embedded Explorer** to start
+   PostgreSQL + the Go indexer; **Disable Embedded Explorer** stops them. The
+   `postgres` and `indexer-go` images are bundled in the .s9pk regardless so
+   toggling is instant, no re-download. Indexed data is preserved across
+   toggles.
+8. **PostgreSQL is embedded, not a separate service.** There is no
+   cross-service dependency on a postgres .s9pk; the database is local to this
+   package, lives at `/data/postgres`, and is intended for the embedded
+   indexer (and any future explorer UI). Connect to it from inside the gotty
+   terminal with `psql $DB_URL` (only meaningful while the explorer is
+   enabled).
+9. **Enabling the explorer requires internet on its first start.** The pinned
+   commit of `spacesprotocol/explorer-indexer` is downloaded from GitHub into
+   `/data/explorer-indexer`, and `go build` + `go install github.com/pressly/goose/v3/cmd/goose`
+   fetch Go modules. After that the indexer runs offline; the only network it
+   needs is bitcoind (already a StartOS dependency) and the local spaced RPC.
+10. **Explorer first-enable latency is ~2-5 minutes.** The Go indexer needs to
+    download modules and compile from scratch the first time you turn it on.
+    Subsequent restarts (and toggle off→on) skip `indexer-fetch` +
+    `indexer-build` because the binaries already exist on the volume. Use the
+    **Reset Indexer State** action to force a rebuild.
+11. **Subspaces pointers data is not indexed.** Our spaced binary predates the
+    pointers feature. The indexer source is patched during `indexer-fetch` to
+    treat `ptrs_root` as optional and to skip the `getptrblockmeta` RPC call.
+    All other spaces protocol data — blocks, transactions, spaces, rollouts,
+    root anchors with empty pointers root — indexes normally. A future
+    rebuild of `horologger/spaces` with a newer spaced will let us drop these
+    patches.

 ## What Is Unchanged from Upstream

@@ -142,11 +246,11 @@ the same idempotent init logic runs and reuses the existing credentials in

 After install:

-1. Run the **Show Web UI Credentials** action (the install task surfaces it).
-2. Open the Web UI from the StartOS dashboard.
+1. Run the **Show Space-CLI Web UI Credentials** action (the install task surfaces it).
+2. Open the Space-CLI Web UI from the StartOS dashboard.
 3. Log in with `admin` and the displayed password.
 4. Use `spaces <subcommand>` -- it expands to
-   `space-cli --chain mainnet --rpc-cookie /data/mainnet/.cookie <subcommand>`.
+   `space-cli --chain mainnet --rpc-user "$SPACED_RPC_USER" --rpc-password "$SPACED_RPC_PASSWORD" <subcommand>`.

 Examples:

@@ -161,32 +265,86 @@ spaces walletbalance default
 ```yaml
 package_id: spaces
 upstream_version: subspacesplus
-image: docker.io/horologger/spaces:v0.0.9s
+images:
+  spaces: docker.io/horologger/spaces:v0.0.9s
+  postgres: docker.io/postgres:16.3
+  indexer-go: docker.io/golang:1.23-alpine
+  explorer-ui: docker.io/node:20-alpine
 architectures: [x86_64, aarch64]
 volumes:
  main: /data
 ports:
  ui: 8080
-  spaced_rpc: 7225  # loopback only
+  explorer_ui: 3000     # external, only useful while explorer enabled
+  spaced_rpc: 7225      # loopback only
+  postgres: 5432        # loopback only
 dependencies:
  - bitcoind
-startos_managed_env_vars:
+spaced_env_vars:
  - SPACED_CHAIN
  - SPACED_DATA_DIR
  - SPACED_RPC_BIND
  - SPACED_RPC_PORT
  - SPACED_RPC_URL
+  - SPACED_RPC_USER
+  - SPACED_RPC_PASSWORD
  - SPACED_BLOCK_INDEX
  - SPACED_BITCOIN_RPC_URL
  - SPACED_BITCOIN_RPC_USER
  - SPACED_BITCOIN_RPC_PASSWORD
-  - SPACED_RPC_COOKIE
  - BTC_RPC_HOST
  - BTC_RPC_PORT
  - BTC_RPC_USER
  - BTC_RPC_PASSWORD
  - APP_USER
  - APP_PASSWORD
+  - DB_URL
+postgres_env_vars:
+  - POSTGRES_USER
+  - POSTGRES_PASSWORD
+  - POSTGRES_DB
+  - PGDATA
+explorer:
+  default_enabled: false   # opt-in via Enable Embedded Explorer action
+  store_field: enableExplorer
+  bundled_when_disabled: true   # images stay in .s9pk; data on /data preserved
+indexer:
+  source_repo: spacesprotocol/explorer-indexer
+  pinned_commit: 00ae1e548734d93f1a8bb9f48d2290f459e12b35
+  install_dir: /data/explorer-indexer
+  bin_dir: /data/explorer-indexer/bin
+  schema_dir: /data/explorer-indexer/sql/schema
+  language: Go
+  build_image: golang:1.23-alpine
+  migrations_tool: goose
+  goose_version: v3.24.3
+explorer_ui:
+  source_repo: randomlogin/explorer
+  pinned_commit: c827da1754c3cba5c5507d2c29f21b8fa231344d
+  install_dir: /data/explorer-ui
+  build_dir: /data/explorer-ui/build
+  language: TypeScript (SvelteKit)
+  build_image: node:20-alpine
+  build_command: PUBLIC_BTC_NETWORK=mainnet npm run build
+  daemon_command: node /data/explorer-ui/build
+  port: 3000
+  managed_env_vars:
+    - POSTGRES_URI
+    - BITCOIN_NODE_URI
+    - BITCOIN_NODE_USER
+    - BITCOIN_NODE_PASSWORD
+    - SPACES_NODE_URI
+    - RPC_USER
+    - RPC_PASSWORD
+    - ACTIVATION_BLOCK_HEIGHT
+    - FAST_SYNC_BLOCK_HEIGHT
+    - UPDATE_DB_INTERVAL
+    - MEMPOOL_CHUNK_SIZE
+  defaults:
+    ACTIVATION_BLOCK_HEIGHT: '871222'  # spaces mainnet activation
+    FAST_SYNC_BLOCK_HEIGHT: '864000'
+    UPDATE_DB_INTERVAL: '5'
+    MEMPOOL_CHUNK_SIZE: '200'
 actions:
  - reset-password
  - show-credentials
@@ -196,4 +354,10 @@ actions:
  - reset-spaced-state
  - export-wallet
  - import-wallet
+  - enable-explorer
+  - disable-explorer
+  - show-db-credentials
+  - reset-db-state
+  - reset-indexer-state
+  - reset-explorer-state
 ```
@@ -0,0 +1,37 @@
+import { storeJson } from '../fileModels/storeJson'
+import { i18n } from '../i18n'
+import { sdk } from '../sdk'
+
+export const disableExplorer = sdk.Action.withoutInput(
+  // id
+  'disable-explorer',
+
+  // metadata
+  async ({ effects }) => {
+    const current = await storeJson.read((s) => s.enableExplorer).once()
+    return {
+      name: i18n('Disable Embedded Explorer'),
+      description: i18n(
+        'Stop the embedded PostgreSQL + Go indexer. Indexed data on disk (/data/postgres, /data/explorer-indexer) is preserved and will be reused if the explorer is re-enabled later. Service restarts automatically.',
+      ),
+      warning: null,
+      allowedStatuses: 'any',
+      group: null,
+      visibility: current === true ? 'enabled' : 'hidden',
+    }
+  },
+
+  // run
+  async ({ effects }) => {
+    await storeJson.merge(effects, { enableExplorer: false })
+
+    return {
+      version: '1',
+      title: i18n('Success'),
+      message: i18n(
+        'Embedded explorer disabled. The service is restarting in spaces-only mode (spaced + web terminal). Run "Enable Embedded Explorer" to turn it back on.',
+      ),
+      result: null,
+    }
+  },
+)
@@ -0,0 +1,37 @@
+import { storeJson } from '../fileModels/storeJson'
+import { i18n } from '../i18n'
+import { sdk } from '../sdk'
+
+export const enableExplorer = sdk.Action.withoutInput(
+  // id
+  'enable-explorer',
+
+  // metadata
+  async ({ effects }) => {
+    const current = await storeJson.read((s) => s.enableExplorer).once()
+    return {
+      name: i18n('Enable Embedded Explorer'),
+      description: i18n(
+        'Turn on the embedded PostgreSQL + Go indexer. Spaces protocol data (blocks, transactions, spaces, rollouts) will be indexed locally for use by the future explorer web UI. Service restarts automatically.',
+      ),
+      warning: null,
+      allowedStatuses: 'any',
+      group: null,
+      visibility: current === true ? 'hidden' : 'enabled',
+    }
+  },
+
+  // run
+  async ({ effects }) => {
+    await storeJson.merge(effects, { enableExplorer: true })
+
+    return {
+      version: '1',
+      title: i18n('Success'),
+      message: i18n(
+        'Embedded explorer enabled. The service is restarting; the indexer will begin fetching blocks shortly. First-time start can take several minutes for the Go build.',
+      ),
+      result: null,
+    }
+  },
+)
@@ -1,3 +1,4 @@
+import { storeJson } from '../fileModels/storeJson'
 import { i18n } from '../i18n'
 import { sdk } from '../sdk'
 import { dataDir, SPACED_CHAIN } from '../utils'
@@ -23,6 +24,18 @@ export const exportWallet = sdk.Action.withoutInput(

  // run
  async ({ effects }) => {
+    const spacedAuth = await storeJson.read((s) => s.spacedAuth).once()
+    if (!spacedAuth) {
+      return {
+        version: '1',
+        title: i18n('Failure'),
+        message: i18n('Could not export wallet: ${error}', {
+          error: 'spacedAuth missing from store.json',
+        }),
+        result: null,
+      }
+    }
+
    const mounts = sdk.Mounts.of().mountVolume({
      volumeId: 'main',
      subpath: null,
@@ -32,7 +45,7 @@ export const exportWallet = sdk.Action.withoutInput(

    const cmd = [
      `mkdir -p ${BACKUP_DIR}`,
-      `/root/.cargo/bin/space-cli --chain ${SPACED_CHAIN} --rpc-cookie ${dataDir}/${SPACED_CHAIN}/.cookie exportwallet ${BACKUP_PATH}`,
+      `/root/.cargo/bin/space-cli --chain ${SPACED_CHAIN} --rpc-user ${spacedAuth.username} --rpc-password ${spacedAuth.password} exportwallet ${BACKUP_PATH}`,
    ].join(' && ')

    const result = await sdk.SubContainer.withTemp(
@@ -1,3 +1,4 @@
+import { storeJson } from '../fileModels/storeJson'
 import { i18n } from '../i18n'
 import { sdk } from '../sdk'
 import { dataDir, SPACED_CHAIN } from '../utils'
@@ -7,7 +8,6 @@ const { InputSpec, Value } = sdk
 const BACKUP_DIR = `${dataDir}/${SPACED_CHAIN}/wallets_backup`
 const BACKUP_PATH = `${BACKUP_DIR}/default.json`
 const WALLET_DIR = `${dataDir}/${SPACED_CHAIN}/wallets/default`
-const COOKIE_PATH = `${dataDir}/${SPACED_CHAIN}/.cookie`

 const inputSpec = InputSpec.of({
  walletJson: Value.textarea({
@@ -63,9 +63,23 @@ export const importWallet = sdk.Action.withInput(
      }
    }

+    const spacedAuth = await storeJson.read((s) => s.spacedAuth).once()
+    if (!spacedAuth) {
+      return {
+        version: '1',
+        title: i18n('Failure'),
+        message: i18n('Could not import wallet: ${error}', {
+          error: 'spacedAuth missing from store.json',
+        }),
+        result: null,
+      }
+    }
+
    // base64-encode so shell quoting can never break on user content.
    const b64 = Buffer.from(input.walletJson, 'utf8').toString('base64')

+    const cliAuth = `--rpc-user '${spacedAuth.username}' --rpc-password '${spacedAuth.password}'`
+
    const script = `set -e
 mkdir -p '${BACKUP_DIR}'

@@ -93,8 +107,8 @@ if [ -d "$WDIR" ]; then
 fi

 # Import + load via spaced RPC.
-/root/.cargo/bin/space-cli --chain ${SPACED_CHAIN} --rpc-cookie '${COOKIE_PATH}' importwallet "$BACKUP"
-/root/.cargo/bin/space-cli --chain ${SPACED_CHAIN} --rpc-cookie '${COOKIE_PATH}' loadwallet
+/root/.cargo/bin/space-cli --chain ${SPACED_CHAIN} ${cliAuth} importwallet "$BACKUP"
+/root/.cargo/bin/space-cli --chain ${SPACED_CHAIN} ${cliAuth} loadwallet
 `

    const res = await sdk.SubContainer.withTemp(
@@ -1,10 +1,16 @@
 import { sdk } from '../sdk'
+import { disableExplorer } from './disableExplorer'
+import { enableExplorer } from './enableExplorer'
 import { exportWallet } from './exportWallet'
 import { importWallet } from './importWallet'
+import { resetDbState } from './resetDbState'
+import { resetExplorerState } from './resetExplorerState'
+import { resetIndexerState } from './resetIndexerState'
 import { resetPassword } from './resetPassword'
 import { resetSpacedState } from './resetSpacedState'
 import { setBitcoinRpc } from './setBitcoinRpc'
 import { showCredentials } from './showCredentials'
+import { showDbCredentials } from './showDbCredentials'
 import { showPassword } from './showPassword'
 import { syncStatus } from './syncStatus'

@@ -17,3 +23,9 @@ export const actions = sdk.Actions.of()
  .addAction(resetSpacedState)
  .addAction(exportWallet)
  .addAction(importWallet)
+  .addAction(enableExplorer)
+  .addAction(disableExplorer)
+  .addAction(showDbCredentials)
+  .addAction(resetDbState)
+  .addAction(resetIndexerState)
+  .addAction(resetExplorerState)
@@ -0,0 +1,58 @@
+import { i18n } from '../i18n'
+import { sdk } from '../sdk'
+import { dataDir, pgDataDir } from '../utils'
+
+export const resetDbState = sdk.Action.withoutInput(
+  // id
+  'reset-db-state',
+
+  // metadata
+  async ({ effects }) => ({
+    name: i18n('Reset Database State'),
+    description: i18n(
+      'Wipe /data/postgres so PostgreSQL re-initializes from scratch.',
+    ),
+    warning: i18n(
+      'This deletes all PostgreSQL data on disk. The next start will re-create an empty database. store.json (passwords + RPC credentials) is preserved.',
+    ),
+    allowedStatuses: 'any',
+    group: null,
+    visibility: 'enabled',
+  }),
+
+  // run
+  async ({ effects }) => {
+    const res = await sdk.SubContainer.withTemp(
+      effects,
+      { imageId: 'spaces' },
+      sdk.Mounts.of().mountVolume({
+        volumeId: 'main',
+        subpath: null,
+        mountpoint: dataDir,
+        readonly: false,
+      }),
+      'spaces-reset-db',
+      (subc) => subc.exec(['rm', '-rf', pgDataDir], { user: 'root' }),
+    )
+
+    if (res.exitCode !== 0) {
+      return {
+        version: '1',
+        title: i18n('Failure'),
+        message: i18n('Could not wipe PostgreSQL state: ${error}', {
+          error: (res.stderr ?? '').toString() || `exit ${res.exitCode}`,
+        }),
+        result: null,
+      }
+    }
+
+    return {
+      version: '1',
+      title: i18n('Success'),
+      message: i18n(
+        'PostgreSQL data has been wiped. Start (or restart) the service to re-initialize the database.',
+      ),
+      result: null,
+    }
+  },
+)
@@ -0,0 +1,58 @@
+import { i18n } from '../i18n'
+import { sdk } from '../sdk'
+import { dataDir, EXPLORER_DIR } from '../utils'
+
+export const resetExplorerState = sdk.Action.withoutInput(
+  // id
+  'reset-explorer-state',
+
+  // metadata
+  async ({ effects }) => ({
+    name: i18n('Reset Explorer UI State'),
+    description: i18n(
+      'Wipe /data/explorer-ui so the next start re-fetches the explorer source and rebuilds it from scratch.',
+    ),
+    warning: i18n(
+      'This deletes the cached explorer source and the built SvelteKit bundle. The next start will need internet access to re-download from GitHub and to fetch npm dependencies. PostgreSQL data is preserved.',
+    ),
+    allowedStatuses: 'any',
+    group: null,
+    visibility: 'enabled',
+  }),
+
+  // run
+  async ({ effects }) => {
+    const res = await sdk.SubContainer.withTemp(
+      effects,
+      { imageId: 'explorer-ui' },
+      sdk.Mounts.of().mountVolume({
+        volumeId: 'main',
+        subpath: null,
+        mountpoint: dataDir,
+        readonly: false,
+      }),
+      'spaces-reset-explorer',
+      (subc) => subc.exec(['rm', '-rf', EXPLORER_DIR], { user: 'root' }),
+    )
+
+    if (res.exitCode !== 0) {
+      return {
+        version: '1',
+        title: i18n('Failure'),
+        message: i18n('Could not wipe explorer state: ${error}', {
+          error: (res.stderr ?? '').toString() || `exit ${res.exitCode}`,
+        }),
+        result: null,
+      }
+    }
+
+    return {
+      version: '1',
+      title: i18n('Success'),
+      message: i18n(
+        'Explorer cache has been wiped. Start (or restart) the service to re-fetch and rebuild from GitHub.',
+      ),
+      result: null,
+    }
+  },
+)
@@ -0,0 +1,58 @@
+import { i18n } from '../i18n'
+import { sdk } from '../sdk'
+import { dataDir, INDEXER_DIR } from '../utils'
+
+export const resetIndexerState = sdk.Action.withoutInput(
+  // id
+  'reset-indexer-state',
+
+  // metadata
+  async ({ effects }) => ({
+    name: i18n('Reset Indexer State'),
+    description: i18n(
+      'Wipe /data/explorer-indexer so the next start re-fetches the indexer source and rebuilds the sync + goose binaries.',
+    ),
+    warning: i18n(
+      'This deletes the cached indexer source and compiled binaries. The next start will need internet access to re-download from GitHub and to fetch Go modules. PostgreSQL data (the indexed blocks themselves) is preserved — use Reset Database State if you also want to clear that.',
+    ),
+    allowedStatuses: 'any',
+    group: null,
+    visibility: 'enabled',
+  }),
+
+  // run
+  async ({ effects }) => {
+    const res = await sdk.SubContainer.withTemp(
+      effects,
+      { imageId: 'spaces' },
+      sdk.Mounts.of().mountVolume({
+        volumeId: 'main',
+        subpath: null,
+        mountpoint: dataDir,
+        readonly: false,
+      }),
+      'spaces-reset-indexer',
+      (subc) => subc.exec(['rm', '-rf', INDEXER_DIR], { user: 'root' }),
+    )
+
+    if (res.exitCode !== 0) {
+      return {
+        version: '1',
+        title: i18n('Failure'),
+        message: i18n('Could not wipe indexer state: ${error}', {
+          error: (res.stderr ?? '').toString() || `exit ${res.exitCode}`,
+        }),
+        result: null,
+      }
+    }
+
+    return {
+      version: '1',
+      title: i18n('Success'),
+      message: i18n(
+        'Indexer cache has been wiped. Start (or restart) the service to re-fetch and rebuild from GitHub.',
+      ),
+      result: null,
+    }
+  },
+)
@@ -9,7 +9,7 @@ export const resetPassword = sdk.Action.withoutInput(

  // metadata
  async ({ effects }) => ({
-    name: i18n('Reset Web UI Password'),
+    name: i18n('Reset Space-CLI Web UI Password'),
    description: i18n(
      'Generate a new admin password for the Spaces web terminal',
    ),
@@ -9,7 +9,7 @@ export const showCredentials = sdk.Action.withoutInput(

  // metadata
  async ({ effects }) => ({
-    name: i18n('Show Web UI Credentials'),
+    name: i18n('Show Space-CLI Web UI Credentials'),
    description: i18n(
      'Display the username and password for the Spaces web terminal',
    ),
@@ -25,7 +25,7 @@ export const showCredentials = sdk.Action.withoutInput(

    return {
      version: '1',
-      title: i18n('Show Web UI Credentials'),
+      title: i18n('Show Space-CLI Web UI Credentials'),
      message: i18n(
        'Use these credentials to log in to the Spaces web terminal.',
      ),
@@ -0,0 +1,81 @@
+import { storeJson } from '../fileModels/storeJson'
+import { i18n } from '../i18n'
+import { sdk } from '../sdk'
+import { POSTGRES_PORT } from '../utils'
+
+export const showDbCredentials = sdk.Action.withoutInput(
+  // id
+  'show-db-credentials',
+
+  // metadata
+  async ({ effects }) => ({
+    name: i18n('Show Database Credentials'),
+    description: i18n(
+      'Display the PostgreSQL username, password, database, and connection URL.',
+    ),
+    warning: null,
+    allowedStatuses: 'any',
+    group: null,
+    visibility: 'enabled',
+  }),
+
+  // run
+  async ({ effects }) => {
+    const dbAuth = await storeJson.read((s) => s.dbAuth).once()
+    const username = dbAuth?.username ?? ''
+    const password = dbAuth?.password ?? ''
+    const database = dbAuth?.database ?? ''
+    const url = dbAuth
+      ? `postgres://${dbAuth.username}:${dbAuth.password}@127.0.0.1:${POSTGRES_PORT}/${dbAuth.database}`
+      : ''
+
+    return {
+      version: '1',
+      title: i18n('Show Database Credentials'),
+      message: i18n(
+        'Use these credentials to connect to the Spaces PostgreSQL database (loopback only inside the container).',
+      ),
+      result: {
+        type: 'group',
+        value: [
+          {
+            type: 'single',
+            name: i18n('Username'),
+            description: null,
+            value: username,
+            masked: false,
+            copyable: true,
+            qr: false,
+          },
+          {
+            type: 'single',
+            name: i18n('Password'),
+            description: null,
+            value: password,
+            masked: true,
+            copyable: true,
+            qr: false,
+          },
+          {
+            type: 'single',
+            name: i18n('Database'),
+            description: null,
+            value: database,
+            masked: false,
+            copyable: true,
+            qr: false,
+          },
+          {
+            type: 'single',
+            name: i18n('Connection URL'),
+            description: null,
+            value: url,
+            masked: true,
+            copyable: true,
+            qr: false,
+          },
+        ],
+      },
+    }
+  },
+)
@@ -9,7 +9,7 @@ export const showPassword = sdk.Action.withoutInput(

  // metadata
  async ({ effects }) => ({
-    name: i18n('Show Web UI Password'),
+    name: i18n('Show Space-CLI Web UI Password'),
    description: i18n(
      'Display the existing username and password for the Spaces web terminal.',
    ),
@@ -25,7 +25,7 @@ export const showPassword = sdk.Action.withoutInput(

    return {
      version: '1',
-      title: i18n('Show Web UI Password'),
+      title: i18n('Show Space-CLI Web UI Password'),
      message: i18n(
        'Use these credentials to log in to the Spaces web terminal.',
      ),
@@ -1,3 +1,4 @@
+import { storeJson } from '../fileModels/storeJson'
 import { i18n } from '../i18n'
 import { sdk } from '../sdk'
 import { dataDir, SPACED_CHAIN } from '../utils'
@@ -20,6 +21,16 @@ export const syncStatus = sdk.Action.withoutInput(

  // run
  async ({ effects }) => {
+    const spacedAuth = await storeJson.read((s) => s.spacedAuth).once()
+    if (!spacedAuth) {
+      return {
+        version: '1',
+        title: i18n('Failure'),
+        message: i18n('Could not query spaced. Is the service running?'),
+        result: null,
+      }
+    }
+
    const res = await sdk.SubContainer.withTemp(
      effects,
      { imageId: 'spaces' },
@@ -35,8 +46,10 @@ export const syncStatus = sdk.Action.withoutInput(
          '/root/.cargo/bin/space-cli',
          '--chain',
          SPACED_CHAIN,
-          '--rpc-cookie',
-          `${dataDir}/${SPACED_CHAIN}/.cookie`,
+          '--rpc-user',
+          spacedAuth.username,
+          '--rpc-password',
+          spacedAuth.password,
          'getserverinfo',
        ]),
    )
@@ -10,6 +10,22 @@ const shape = z.object({
    })
    .nullable()
    .catch(null),
+  dbAuth: z
+    .object({
+      username: z.string(),
+      password: z.string(),
+      database: z.string(),
+    })
+    .nullable()
+    .catch(null),
+  spacedAuth: z
+    .object({
+      username: z.string(),
+      password: z.string(),
+    })
+    .nullable()
+    .catch(null),
+  enableExplorer: z.boolean().nullable().catch(null),
 })

 export const storeJson = FileHelper.json(
@@ -17,12 +17,68 @@ const dict = {
  'getserverinfo non-JSON. stdout=${stdout} stderr=${stderr}': 11,
  'Spaced Sync health check crashed: ${error}': 53,
  'space-cli exited ${code}: ${error}': 54,
-  'Show Web UI Password': 55,
+  'Show Space-CLI Web UI Password': 55,
  'Display the existing username and password for the Spaces web terminal.':
    56,
+  Database: 57,
+  'postgres is ready': 58,
+  'postgres is not ready': 59,
+  'Show Database Credentials': 60,
+  'Display the PostgreSQL username, password, database, and connection URL.':
+    61,
+  'Reset Database State': 62,
+  'Wipe /data/postgres so PostgreSQL re-initializes from scratch.': 63,
+  'This deletes all PostgreSQL data on disk. The next start will re-create an empty database. store.json (passwords + RPC credentials) is preserved.':
+    64,
+  'PostgreSQL data has been wiped. Start (or restart) the service to re-initialize the database.':
+    65,
+  'Could not wipe PostgreSQL state: ${error}': 66,
+  'Use these credentials to connect to the Spaces PostgreSQL database (loopback only inside the container).':
+    67,
+  'Connection URL': 68,
+  'Indexer Process': 69,
+  'indexer process is running': 70,
+  'Indexer Sync': 71,
+  'indexer psql exited ${code}: ${error}': 72,
+  'indexer has not run a sync cycle yet.': 73,
+  'indexer has not yet committed any blocks (spaced tip ${tip}).': 74,
+  'indexer caught up at block ${end} (spaced tip ${tip}).': 76,
+  'indexer at block ${end}, ${lag} behind spaced tip ${tip}.': 77,
+  'Indexer Sync health check crashed: ${error}': 78,
+  'Reset Indexer State': 79,
+  'Wipe /data/explorer-indexer so the next start re-fetches the indexer source and rebuilds the sync + goose binaries.':
+    80,
+  'This deletes the cached indexer source and compiled binaries. The next start will need internet access to re-download from GitHub and to fetch Go modules. PostgreSQL data (the indexed blocks themselves) is preserved — use Reset Database State if you also want to clear that.':
+    81,
+  'Indexer cache has been wiped. Start (or restart) the service to re-fetch and rebuild from GitHub.':
+    82,
+  'Could not wipe indexer state: ${error}': 83,
+  'Enable Embedded Explorer': 84,
+  'Turn on the embedded PostgreSQL + Go indexer. Spaces protocol data (blocks, transactions, spaces, rollouts) will be indexed locally for use by the future explorer web UI. Service restarts automatically.':
+    85,
+  'Embedded explorer enabled. The service is restarting; the indexer will begin fetching blocks shortly. First-time start can take several minutes for the Go build.':
+    86,
+  'Disable Embedded Explorer': 87,
+  'Stop the embedded PostgreSQL + Go indexer. Indexed data on disk (/data/postgres, /data/explorer-indexer) is preserved and will be reused if the explorer is re-enabled later. Service restarts automatically.':
+    88,
+  'Embedded explorer disabled. The service is restarting in spaces-only mode (spaced + web terminal). Run "Enable Embedded Explorer" to turn it back on.':
+    89,
+  'Explorer Web UI': 90,
+  'explorer UI is ready': 91,
+  'explorer UI is not ready': 92,
+  'SvelteKit explorer for the Spaces protocol. Reads from the embedded PostgreSQL populated by the indexer. Only useful while the embedded explorer is enabled.':
+    93,
+  'Reset Explorer UI State': 94,
+  'Wipe /data/explorer-ui so the next start re-fetches the explorer source and rebuilds it from scratch.':
+    95,
+  'This deletes the cached explorer source and the built SvelteKit bundle. The next start will need internet access to re-download from GitHub and to fetch npm dependencies. PostgreSQL data is preserved.':
+    96,
+  'Explorer cache has been wiped. Start (or restart) the service to re-fetch and rebuild from GitHub.':
+    97,
+  'Could not wipe explorer state: ${error}': 98,

  // interfaces.ts
-  'Web UI': 12,
+  'Space-CLI Web UI': 12,
  'Browser terminal that exposes space-cli inside the Spaces container.': 13,

  // dependencies.ts / tasks
@@ -30,9 +86,9 @@ const dict = {
  'Spaces needs an admin password for the web terminal': 15,

  // actions
-  'Reset Web UI Password': 16,
+  'Reset Space-CLI Web UI Password': 16,
  'Generate a new admin password for the Spaces web terminal': 17,
-  'Show Web UI Credentials': 18,
+  'Show Space-CLI Web UI Credentials': 18,
  'Display the username and password for the Spaces web terminal': 19,
  'Set up Bitcoin RPC': 20,
  'Re-run the bitcoind RPC credential setup for Spaces': 21,
@@ -5,6 +5,9 @@ import { setInterfaces } from '../interfaces'
 import { sdk } from '../sdk'
 import { versionGraph } from '../versions'
 import { taskBtcAuth } from './taskBtcAuth'
+import { taskSeedDb } from './taskSeedDb'
+import { taskSeedEnableExplorer } from './taskSeedEnableExplorer'
+import { taskSeedSpacedAuth } from './taskSeedSpacedAuth'
 import { taskSetPassword } from './taskSetPassword'

 export const init = sdk.setupInit(
@@ -14,6 +17,9 @@ export const init = sdk.setupInit(
  setDependencies,
  actions,
  taskBtcAuth,
+  taskSeedDb,
+  taskSeedSpacedAuth,
+  taskSeedEnableExplorer,
  taskSetPassword,
 )

@@ -0,0 +1,20 @@
+import { storeJson } from '../fileModels/storeJson'
+import { sdk } from '../sdk'
+import { POSTGRES_DB, POSTGRES_USER, randomPassword } from '../utils'
+
+export const taskSeedDb = sdk.setupOnInit(async (effects) => {
+  const existing = await storeJson.read((s) => s.dbAuth).once()
+  if (existing) return
+
+  await storeJson.merge(
+    effects,
+    {
+      dbAuth: {
+        username: POSTGRES_USER,
+        password: randomPassword(),
+        database: POSTGRES_DB,
+      },
+    },
+    { allowWriteAfterConst: true },
+  )
+})
@@ -0,0 +1,13 @@
+import { storeJson } from '../fileModels/storeJson'
+import { sdk } from '../sdk'
+
+export const taskSeedEnableExplorer = sdk.setupOnInit(async (effects) => {
+  const existing = await storeJson.read((s) => s.enableExplorer).once()
+  if (existing !== null && existing !== undefined) return
+
+  await storeJson.merge(
+    effects,
+    { enableExplorer: false },
+    { allowWriteAfterConst: true },
+  )
+})
@@ -0,0 +1,19 @@
+import { storeJson } from '../fileModels/storeJson'
+import { sdk } from '../sdk'
+import { randomPassword } from '../utils'
+
+export const taskSeedSpacedAuth = sdk.setupOnInit(async (effects) => {
+  const existing = await storeJson.read((s) => s.spacedAuth).once()
+  if (existing) return
+
+  await storeJson.merge(
+    effects,
+    {
+      spacedAuth: {
+        username: 'spaces',
+        password: randomPassword(),
+      },
+    },
+    { allowWriteAfterConst: true },
+  )
+})
@@ -1,6 +1,6 @@
 import { i18n } from './i18n'
 import { sdk } from './sdk'
-import { uiPort } from './utils'
+import { EXPLORER_PORT, uiPort } from './utils'

 export const setInterfaces = sdk.setupInterfaces(async ({ effects }) => {
  const uiMulti = sdk.MultiHost.of(effects, 'ui-multi')
@@ -8,7 +8,7 @@ export const setInterfaces = sdk.setupInterfaces(async ({ effects }) => {
    protocol: 'http',
  })
  const ui = sdk.createInterface(effects, {
-    name: i18n('Web UI'),
+    name: i18n('Space-CLI Web UI'),
    id: 'ui',
    description: i18n(
      'Browser terminal that exposes space-cli inside the Spaces container.',
@@ -23,5 +23,25 @@ export const setInterfaces = sdk.setupInterfaces(async ({ effects }) => {

  const uiReceipt = await uiMultiOrigin.export([ui])

-  return [uiReceipt]
+  const explorerMulti = sdk.MultiHost.of(effects, 'explorer-multi')
+  const explorerMultiOrigin = await explorerMulti.bindPort(EXPLORER_PORT, {
+    protocol: 'http',
+  })
+  const explorer = sdk.createInterface(effects, {
+    name: i18n('Explorer Web UI'),
+    id: 'explorer',
+    description: i18n(
+      'SvelteKit explorer for the Spaces protocol. Reads from the embedded PostgreSQL populated by the indexer. Only useful while the embedded explorer is enabled.',
+    ),
+    type: 'ui',
+    masked: false,
+    schemeOverride: null,
+    username: null,
+    path: '',
+    query: {},
+  })
+
+  const explorerReceipt = await explorerMultiOrigin.export([explorer])
+
+  return [uiReceipt, explorerReceipt]
 })
@@ -6,6 +6,29 @@ import {
  BITCOIND_RPC_HOSTNAME,
  BITCOIND_RPC_PORT,
  dataDir,
+  EXPLORER_BUILD_DIR,
+  EXPLORER_BUILD_ID,
+  EXPLORER_DIR,
+  EXPLORER_MARKER,
+  EXPLORER_NETWORK,
+  EXPLORER_PORT,
+  EXPLORER_TARBALL_URL,
+  INDEXER_ACTIVATION_HEIGHT,
+  INDEXER_BIN_DIR,
+  INDEXER_BUILD_ID,
+  INDEXER_DIR,
+  INDEXER_FAST_SYNC_HEIGHT,
+  INDEXER_GOOSE_BIN,
+  INDEXER_MARKER,
+  INDEXER_MEMPOOL_CHUNK_SIZE,
+  INDEXER_SCHEMA_DIR,
+  INDEXER_SYNC_BIN,
+  INDEXER_TARBALL_URL,
+  INDEXER_UPDATE_INTERVAL,
+  pgDataDir,
+  POSTGRES_DB,
+  POSTGRES_PORT,
+  POSTGRES_USER,
  SPACED_CHAIN,
  spacedRpcPort,
  uiPort,
@@ -15,13 +38,20 @@ export const main = sdk.setupMain(async ({ effects }) => {
  console.info(i18n('Starting Spaces!'))

  const store = await storeJson.read().const(effects)
-  if (!store?.password || !store?.btcAuth) {
-    // taskSetPassword + taskBtcAuth both seed these in init; if they aren't
-    // populated yet, init hasn't finished — let StartOS restart us.
+  if (
+    !store?.password ||
+    !store?.btcAuth ||
+    !store?.dbAuth ||
+    !store?.spacedAuth
+  ) {
+    // taskSetPassword + taskBtcAuth + taskSeedDb + taskSeedSpacedAuth all seed
+    // these in init; if they aren't populated yet, init hasn't finished — let
+    // StartOS restart us.
    throw new Error('Spaces store.json is not yet populated.')
  }

-  const { password: APP_PASSWORD, btcAuth } = store
+  const { password: APP_PASSWORD, btcAuth, dbAuth, spacedAuth } = store
+  const enableExplorer = store.enableExplorer === true

  const spacedEnv = {
    SPACED_CHAIN,
@@ -33,7 +63,8 @@ export const main = sdk.setupMain(async ({ effects }) => {
    SPACED_BITCOIN_RPC_URL: `http://${BITCOIND_RPC_HOSTNAME}:${BITCOIND_RPC_PORT}`,
    SPACED_BITCOIN_RPC_USER: btcAuth.username,
    SPACED_BITCOIN_RPC_PASSWORD: btcAuth.password,
-    SPACED_RPC_COOKIE: `/data/mainnet/.cookie`,
+    SPACED_RPC_USER: spacedAuth.username,
+    SPACED_RPC_PASSWORD: spacedAuth.password,
    // legacy aliases for `bitcoin-cli` / shell helpers that read these names
    BTC_RPC_HOST: BITCOIND_RPC_HOSTNAME,
    BTC_RPC_PORT: String(BITCOIND_RPC_PORT),
@@ -41,6 +72,7 @@ export const main = sdk.setupMain(async ({ effects }) => {
    BTC_RPC_PASSWORD: btcAuth.password,
    APP_USER,
    APP_PASSWORD,
+    DB_URL: `postgres://${dbAuth.username}:${dbAuth.password}@127.0.0.1:${POSTGRES_PORT}/${dbAuth.database}`,
  }

  const mounts = sdk.Mounts.of().mountVolume({
@@ -64,10 +96,65 @@ export const main = sdk.setupMain(async ({ effects }) => {
    'terminal-sub',
  )

+  const postgresSub = await sdk.SubContainer.of(
+    effects,
+    { imageId: 'postgres' },
+    mounts,
+    'postgres-sub',
+  )
+
+  const postgresEnv = {
+    POSTGRES_USER: dbAuth.username,
+    POSTGRES_PASSWORD: dbAuth.password,
+    POSTGRES_DB: dbAuth.database,
+    PGDATA: pgDataDir,
+  }
+
+  const indexerSub = await sdk.SubContainer.of(
+    effects,
+    { imageId: 'indexer-go' },
+    mounts,
+    'indexer-sub',
+  )
+
+  const explorerSub = await sdk.SubContainer.of(
+    effects,
+    { imageId: 'explorer-ui' },
+    mounts,
+    'explorer-sub',
+  )
+
+  const explorerEnv = {
+    DB_URL: `postgres://${dbAuth.username}:${dbAuth.password}@127.0.0.1:${POSTGRES_PORT}/${dbAuth.database}?sslmode=disable`,
+    PUBLIC_BTC_NETWORK: EXPLORER_NETWORK,
+    PORT: String(EXPLORER_PORT),
+    HOME: '/root',
+  }
+
+  const postgresUri = `postgres://${dbAuth.username}:${dbAuth.password}@127.0.0.1:${POSTGRES_PORT}/${dbAuth.database}?sslmode=disable`
+
+  const indexerEnv = {
+    POSTGRES_URI: postgresUri,
+    BITCOIN_NODE_URI: `http://${BITCOIND_RPC_HOSTNAME}:${BITCOIND_RPC_PORT}`,
+    BITCOIN_NODE_USER: btcAuth.username,
+    BITCOIN_NODE_PASSWORD: btcAuth.password,
+    SPACES_NODE_URI: `http://127.0.0.1:${spacedRpcPort}`,
+    RPC_USER: spacedAuth.username,
+    RPC_PASSWORD: spacedAuth.password,
+    ACTIVATION_BLOCK_HEIGHT: INDEXER_ACTIVATION_HEIGHT,
+    FAST_SYNC_BLOCK_HEIGHT: INDEXER_FAST_SYNC_HEIGHT,
+    UPDATE_DB_INTERVAL: INDEXER_UPDATE_INTERVAL,
+    MEMPOOL_CHUNK_SIZE: INDEXER_MEMPOOL_CHUNK_SIZE,
+    PATH: `${INDEXER_BIN_DIR}:/usr/local/go/bin:/usr/local/bin:/usr/bin:/bin`,
+    HOME: '/root',
+    GOPATH: '/root/go',
+    GOBIN: INDEXER_BIN_DIR,
+  }
+
  const bashrc = [
    'export PATH=/root/.cargo/bin:/data/bin:/usr/local/bin:/usr/bin:/bin',
    "export PS1='spaces:\\w$ '",
-    `alias spaces='space-cli --chain ${SPACED_CHAIN} --rpc-cookie ${dataDir}/${SPACED_CHAIN}/.cookie '`,
+    `alias spaces='space-cli --chain ${SPACED_CHAIN} --rpc-user "$SPACED_RPC_USER" --rpc-password "$SPACED_RPC_PASSWORD" '`,
    'cat <<EOF',
    '',
    '┌─ Spaces ─────────────────────────────────────────────────┐',
@@ -80,6 +167,159 @@ export const main = sdk.setupMain(async ({ effects }) => {
    'EOF',
  ].join('\n')

+  if (!enableExplorer) {
+    // Spaces-only mode: spaced + gotty terminal. No PostgreSQL, no indexer.
+    // User can flip the toggle via the Enable Embedded Explorer action;
+    // store.json.enableExplorer is read via .const() so the merge triggers
+    // an automatic service restart and the full chain takes over.
+    return sdk.Daemons.of(effects)
+      .addOneshot('bashrc', {
+        subcontainer: termSub,
+        exec: {
+          command: ['bash', '-c', `cat > /root/.bashrc <<'SPACES_BASHRC_EOF'
+${bashrc}
+SPACES_BASHRC_EOF`],
+          user: 'root',
+        },
+        requires: [],
+      })
+      .addDaemon('spaced', {
+        subcontainer: spacedSub,
+        exec: {
+          command: ['/root/.cargo/bin/spaced'],
+          env: spacedEnv,
+        },
+        ready: {
+          display: i18n('Spaced RPC'),
+          fn: () =>
+            sdk.healthCheck.checkPortListening(effects, spacedRpcPort, {
+              successMessage: i18n('spaced RPC is ready'),
+              errorMessage: i18n('spaced RPC is not ready'),
+            }),
+          gracePeriod: 120_000,
+        },
+        requires: [],
+      })
+      .addDaemon('web-terminal', {
+        subcontainer: termSub,
+        exec: {
+          command: [
+            'gotty',
+            '--port',
+            String(uiPort),
+            '-c',
+            `${APP_USER}:${APP_PASSWORD}`,
+            '--permit-write',
+            '--reconnect',
+            '/bin/bash',
+          ],
+          env: spacedEnv,
+        },
+        ready: {
+          display: i18n('Web Interface'),
+          fn: () =>
+            sdk.healthCheck.checkPortListening(effects, uiPort, {
+              successMessage: i18n('The web terminal is ready'),
+              errorMessage: i18n('The web terminal is not ready'),
+            }),
+        },
+        requires: ['bashrc'],
+      })
+      .addHealthCheck('sync', {
+        ready: {
+          display: i18n('Spaced Sync'),
+          fn: async () => {
+            try {
+              const probe = await spacedSub.exec(
+                [
+                  '/root/.cargo/bin/space-cli',
+                  '--chain',
+                  SPACED_CHAIN,
+                  '--rpc-user',
+                  spacedAuth.username,
+                  '--rpc-password',
+                  spacedAuth.password,
+                  '--output-format',
+                  'json',
+                  'getserverinfo',
+                ],
+                {},
+              )
+              const stderr = (probe.stderr ?? '').toString().trim()
+              const stdoutText = (probe.stdout ?? '').toString()
+              const stdoutTrimmed = stdoutText.trim()
+              if (probe.exitCode !== 0) {
+                return {
+                  result: 'failure',
+                  message: i18n('space-cli exited ${code}: ${error}', {
+                    code: String(probe.exitCode),
+                    error: (stderr || stdoutTrimmed || '<no output>').slice(0, 200),
+                  }),
+                }
+              }
+              let parsed: {
+                ready?: boolean
+                progress?: number
+                chain?: { blocks?: number; headers?: number }
+              }
+              try {
+                parsed = JSON.parse(stdoutText)
+              } catch {
+                return {
+                  result: 'failure',
+                  message: i18n(
+                    'getserverinfo non-JSON. stdout=${stdout} stderr=${stderr}',
+                    {
+                      stdout: (stdoutTrimmed || '<empty>').slice(0, 160),
+                      stderr: (stderr || '<empty>').slice(0, 160),
+                    },
+                  ),
+                }
+              }
+              const progress = Math.min(
+                100,
+                Math.max(0, Math.round((parsed.progress ?? 0) * 100)),
+              )
+              const blocks = parsed.chain?.blocks ?? 0
+              const headers = parsed.chain?.headers ?? 0
+              if (parsed.ready === true && progress >= 100) {
+                return {
+                  result: 'success',
+                  message: i18n(
+                    'spaced is fully synced (blocks ${blocks} / headers ${headers}).',
+                    { blocks: String(blocks), headers: String(headers) },
+                  ),
+                }
+              }
+              return {
+                result: 'loading',
+                message: i18n(
+                  'spaced is indexing: ${pct}% (blocks ${blocks} / headers ${headers}).',
+                  {
+                    pct: String(progress),
+                    blocks: String(blocks),
+                    headers: String(headers),
+                  },
+                ),
+              }
+            } catch (e) {
+              return {
+                result: 'failure',
+                message: i18n('Spaced Sync health check crashed: ${error}', {
+                  error: (e as Error)?.message ?? String(e),
+                }),
+              }
+            }
+          },
+          gracePeriod: 30_000,
+          trigger: sdk.trigger.cooldownTrigger(30_000),
+        },
+        requires: ['spaced'],
+      })
+  }
+
+  // enableExplorer = true: full chain — spaced + terminal + embedded
+  // PostgreSQL + Go indexer + indexer-sync health check.
  return sdk.Daemons.of(effects)
    .addOneshot('bashrc', {
      subcontainer: termSub,
@@ -91,6 +331,40 @@ SPACES_BASHRC_EOF`],
      },
      requires: [],
    })
+    .addOneshot('postgres-chown', {
+      subcontainer: postgresSub,
+      exec: {
+        command: [
+          'bash',
+          '-c',
+          `mkdir -p ${pgDataDir} && chown -R postgres:postgres ${pgDataDir} && chmod 700 ${pgDataDir}`,
+        ],
+        user: 'root',
+      },
+      requires: [],
+    })
+    .addDaemon('postgres', {
+      subcontainer: postgresSub,
+      exec: {
+        command: [
+          'docker-entrypoint.sh',
+          'postgres',
+          '-c',
+          'listen_addresses=127.0.0.1',
+        ],
+        env: postgresEnv,
+      },
+      ready: {
+        display: i18n('Database'),
+        fn: () =>
+          sdk.healthCheck.checkPortListening(effects, POSTGRES_PORT, {
+            successMessage: i18n('postgres is ready'),
+            errorMessage: i18n('postgres is not ready'),
+          }),
+        gracePeriod: 60_000,
+      },
+      requires: ['postgres-chown'],
+    })
    .addDaemon('spaced', {
      subcontainer: spacedSub,
      exec: {
@@ -108,6 +382,215 @@ SPACES_BASHRC_EOF`],
      },
      requires: [],
    })
+    .addOneshot('indexer-fetch', {
+      subcontainer: indexerSub,
+      exec: {
+        command: [
+          'sh',
+          '-c',
+          `set -eu; \
+           echo "indexer-fetch: image diagnostics..."; \
+           cat /etc/os-release 2>/dev/null | head -3 || echo "no /etc/os-release"; \
+           echo "  go: $(go version 2>/dev/null || echo MISSING)"; \
+           echo "  git: $(git --version 2>/dev/null || echo MISSING)"; \
+           echo "  curl: $(curl --version 2>/dev/null | head -1 || echo MISSING)"; \
+           echo "  wget: $(wget --version 2>/dev/null | head -1 || echo MISSING)"; \
+           echo "  tar: $(tar --version 2>/dev/null | head -1 || echo MISSING)"; \
+           mkdir -p ${INDEXER_DIR} ${INDEXER_BIN_DIR}; \
+           if [ -f ${INDEXER_MARKER} ] && [ "$(cat ${INDEXER_MARKER})" = "${INDEXER_BUILD_ID}" ] && [ -x ${INDEXER_SYNC_BIN} ] && [ -x ${INDEXER_GOOSE_BIN} ]; then \
+             echo "indexer-fetch: ${INDEXER_BUILD_ID} already present, skipping."; \
+             exit 0; \
+           fi; \
+           echo "indexer-fetch: downloading ${INDEXER_BUILD_ID}..."; \
+           rm -rf ${INDEXER_DIR}; \
+           mkdir -p ${INDEXER_DIR} ${INDEXER_BIN_DIR}; \
+           if command -v curl >/dev/null 2>&1; then \
+             curl -fsSL '${INDEXER_TARBALL_URL}' -o /tmp/explorer-indexer.tar.gz; \
+           elif command -v wget >/dev/null 2>&1; then \
+             wget -q -O /tmp/explorer-indexer.tar.gz '${INDEXER_TARBALL_URL}'; \
+           else \
+             echo "indexer-fetch: ERROR no curl or wget available"; exit 1; \
+           fi; \
+           tar -xzf /tmp/explorer-indexer.tar.gz --strip-components=1 -C ${INDEXER_DIR}; \
+           rm -f /tmp/explorer-indexer.tar.gz; \
+           echo "indexer-fetch: patching types.go to make ptrs_root optional (older spaced compatibility)..."; \
+           awk 'BEGIN{patched=0} /if aux.PointersRoot == nil \\{/ {skip=2; patched++; next} skip>0 {skip--; next} /ra\\.PointersRoot = \\*aux\\.PointersRoot/ {print "\\tif aux.PointersRoot != nil { ra.PointersRoot = *aux.PointersRoot }"; next} {print} END{if(patched<2){print "PATCH-FAIL: expected 2 ptrs_root blocks, got " patched > "/dev/stderr"; exit 1}}' ${INDEXER_DIR}/pkg/node/types.go > ${INDEXER_DIR}/pkg/node/types.go.new; \
+           mv ${INDEXER_DIR}/pkg/node/types.go.new ${INDEXER_DIR}/pkg/node/types.go; \
+           if grep -q 'missing required field: ptrs_root' ${INDEXER_DIR}/pkg/node/types.go; then \
+             echo "indexer-fetch: ERROR ptrs_root check still present after patch"; exit 1; \
+           fi; \
+           echo "indexer-fetch: patching store.go to skip getptrblockmeta (older spaced has no pointer-block RPC)..."; \
+           awk 'BEGIN{patched=0} /spacesPtrBlock, err := sc.GetPtrBlockMeta/ {skip=8; patched++; next} skip>0 {skip--; next} {print} END{if(patched<1){print "PATCH-FAIL: expected GetPtrBlockMeta block, got " patched > "/dev/stderr"; exit 1}}' ${INDEXER_DIR}/pkg/store/store.go > ${INDEXER_DIR}/pkg/store/store.go.new; \
+           mv ${INDEXER_DIR}/pkg/store/store.go.new ${INDEXER_DIR}/pkg/store/store.go; \
+           if grep -q 'GetPtrBlockMeta' ${INDEXER_DIR}/pkg/store/store.go; then \
+             echo "indexer-fetch: ERROR GetPtrBlockMeta call still present after patch"; exit 1; \
+           fi; \
+           echo "${INDEXER_BUILD_ID}" > ${INDEXER_MARKER}; \
+           echo "indexer-fetch: done."`,
+        ],
+        user: 'root',
+      },
+      requires: [],
+    })
+    .addOneshot('indexer-build', {
+      subcontainer: indexerSub,
+      exec: {
+        command: [
+          'sh',
+          '-c',
+          `set -eu; \
+           if [ -x ${INDEXER_SYNC_BIN} ] && [ -x ${INDEXER_GOOSE_BIN} ]; then \
+             echo "indexer-build: sync + goose already built, skipping."; \
+             exit 0; \
+           fi; \
+           cd ${INDEXER_DIR}; \
+           mkdir -p ${INDEXER_BIN_DIR}; \
+           echo "indexer-build: building sync binary..."; \
+           CGO_ENABLED=0 go build -o ${INDEXER_SYNC_BIN} ./cmd/sync; \
+           echo "indexer-build: installing goose..."; \
+           CGO_ENABLED=0 GOBIN=${INDEXER_BIN_DIR} go install github.com/pressly/goose/v3/cmd/goose@v3.24.3; \
+           ls -l ${INDEXER_BIN_DIR}; \
+           echo "indexer-build: done."`,
+        ],
+        env: indexerEnv,
+        user: 'root',
+      },
+      requires: ['indexer-fetch'],
+    })
+    .addOneshot('indexer-cleanup-legacy', {
+      subcontainer: postgresSub,
+      exec: {
+        command: [
+          'sh',
+          '-c',
+          `set -eu; \
+           PSQL="psql -U $POSTGRES_USER -h 127.0.0.1 -p 5432 -d $POSTGRES_DB -tA"; \
+           HAS_LEGACY=$($PSQL -c "SELECT (to_regclass('public.block_stats') IS NOT NULL) OR (to_regclass('public.spaces_history') IS NOT NULL)" 2>/dev/null || echo f); \
+           HAS_GOOSE=$($PSQL -c "SELECT to_regclass('public.goose_db_version') IS NOT NULL" 2>/dev/null || echo f); \
+           if [ "$HAS_GOOSE" != "t" ] && [ "$HAS_LEGACY" = "t" ]; then \
+             echo "indexer-cleanup-legacy: dropping leftover TS indexer schema..."; \
+             $PSQL -c "DROP TABLE IF EXISTS block_stats, syncs, spaces_history, spaces, transactions, blocks CASCADE; DROP EXTENSION IF EXISTS pg_trgm;"; \
+             echo "indexer-cleanup-legacy: done."; \
+           else \
+             echo "indexer-cleanup-legacy: nothing to clean (HAS_GOOSE=$HAS_GOOSE HAS_LEGACY=$HAS_LEGACY)."; \
+           fi`,
+        ],
+        env: {
+          ...postgresEnv,
+          PGPASSWORD: dbAuth.password,
+        },
+        user: 'postgres',
+      },
+      requires: ['postgres'],
+    })
+    .addOneshot('indexer-migrate', {
+      subcontainer: indexerSub,
+      exec: {
+        command: [
+          'sh',
+          '-c',
+          `set -eu; \
+           echo "indexer-migrate: applying goose migrations..."; \
+           ${INDEXER_GOOSE_BIN} -dir ${INDEXER_SCHEMA_DIR} postgres "$POSTGRES_URI" up; \
+           echo "indexer-migrate: done."`,
+        ],
+        env: indexerEnv,
+        user: 'root',
+      },
+      requires: ['indexer-build', 'postgres', 'indexer-cleanup-legacy'],
+    })
+    .addDaemon('indexer', {
+      subcontainer: indexerSub,
+      exec: {
+        command: [INDEXER_SYNC_BIN],
+        env: indexerEnv,
+      },
+      ready: {
+        display: i18n('Indexer Process'),
+        fn: () => ({
+          result: 'success',
+          message: i18n('indexer process is running'),
+        }),
+        gracePeriod: 60_000,
+      },
+      requires: ['indexer-migrate', 'postgres', 'spaced'],
+    })
+    .addOneshot('explorer-fetch', {
+      subcontainer: explorerSub,
+      exec: {
+        command: [
+          'sh',
+          '-c',
+          `set -eu; \
+           mkdir -p ${EXPLORER_DIR}; \
+           if [ -f ${EXPLORER_MARKER} ] && [ "$(cat ${EXPLORER_MARKER})" = "${EXPLORER_BUILD_ID}" ] && [ -d ${EXPLORER_BUILD_DIR} ]; then \
+             echo "explorer-fetch: ${EXPLORER_BUILD_ID} already present, skipping."; \
+             exit 0; \
+           fi; \
+           echo "explorer-fetch: downloading ${EXPLORER_BUILD_ID}..."; \
+           rm -rf ${EXPLORER_DIR}; \
+           mkdir -p ${EXPLORER_DIR}; \
+           if command -v curl >/dev/null 2>&1; then \
+             curl -fsSL '${EXPLORER_TARBALL_URL}' -o /tmp/explorer-ui.tar.gz; \
+           elif command -v wget >/dev/null 2>&1; then \
+             wget -q -O /tmp/explorer-ui.tar.gz '${EXPLORER_TARBALL_URL}'; \
+           else \
+             echo "explorer-fetch: ERROR no curl or wget"; exit 1; \
+           fi; \
+           tar -xzf /tmp/explorer-ui.tar.gz --strip-components=1 -C ${EXPLORER_DIR}; \
+           rm -f /tmp/explorer-ui.tar.gz; \
+           echo "${EXPLORER_BUILD_ID}" > ${EXPLORER_MARKER}; \
+           echo "explorer-fetch: done."`,
+        ],
+        user: 'root',
+      },
+      requires: [],
+    })
+    .addOneshot('explorer-install', {
+      subcontainer: explorerSub,
+      exec: {
+        command: [
+          'sh',
+          '-c',
+          `set -eu; \
+           cd ${EXPLORER_DIR}; \
+           if [ -d node_modules ] && [ -d build ] && [ -f build/index.js ]; then \
+             echo "explorer-install: already built, skipping."; \
+             exit 0; \
+           fi; \
+           echo "explorer-install: npm install (this may take a few minutes)..."; \
+           npm install --no-audit --no-fund; \
+           echo "explorer-install: building (PUBLIC_BTC_NETWORK=${EXPLORER_NETWORK})..."; \
+           PUBLIC_BTC_NETWORK=${EXPLORER_NETWORK} npm run build; \
+           if [ ! -f ${EXPLORER_BUILD_DIR}/index.js ]; then \
+             echo "explorer-install: ERROR build/index.js not produced"; \
+             ls -la ${EXPLORER_BUILD_DIR} || true; \
+             exit 1; \
+           fi; \
+           echo "explorer-install: done."`,
+        ],
+        env: explorerEnv,
+        user: 'root',
+      },
+      requires: ['explorer-fetch'],
+    })
+    .addDaemon('explorer-ui', {
+      subcontainer: explorerSub,
+      exec: {
+        command: ['node', EXPLORER_BUILD_DIR],
+        env: explorerEnv,
+      },
+      ready: {
+        display: i18n('Explorer Web UI'),
+        fn: () =>
+          sdk.healthCheck.checkPortListening(effects, EXPLORER_PORT, {
+            successMessage: i18n('explorer UI is ready'),
+            errorMessage: i18n('explorer UI is not ready'),
+          }),
+        gracePeriod: 60_000,
+      },
+      requires: ['explorer-install', 'postgres'],
+    })
    .addDaemon('web-terminal', {
      subcontainer: termSub,
      exec: {
@@ -143,8 +626,10 @@ SPACES_BASHRC_EOF`],
                '/root/.cargo/bin/space-cli',
                '--chain',
                SPACED_CHAIN,
-                '--rpc-cookie',
-                `${dataDir}/${SPACED_CHAIN}/.cookie`,
+                '--rpc-user',
+                spacedAuth.username,
+                '--rpc-password',
+                spacedAuth.password,
                '--output-format',
                'json',
                'getserverinfo',
@@ -229,4 +714,128 @@ SPACES_BASHRC_EOF`],
      },
      requires: ['spaced'],
    })
+    .addHealthCheck('indexer-sync', {
+      ready: {
+        display: i18n('Indexer Sync'),
+        fn: async () => {
+          try {
+            // Go indexer has no syncs table; track progress by max(blocks.height)
+            // of non-orphan rows.
+            const psql = await postgresSub.exec(
+              [
+                'psql',
+                '-U',
+                POSTGRES_USER,
+                '-d',
+                POSTGRES_DB,
+                '-h',
+                '127.0.0.1',
+                '-p',
+                String(POSTGRES_PORT),
+                '-t',
+                '-A',
+                '-F',
+                '|',
+                '-c',
+                "SELECT COALESCE(MAX(height), 0) FROM blocks WHERE orphan = FALSE AND height >= 0;",
+              ],
+              { env: { PGPASSWORD: dbAuth.password } as Record<string, string> },
+            )
+
+            if (psql.exitCode !== 0) {
+              return {
+                result: 'failure',
+                message: i18n('indexer psql exited ${code}: ${error}', {
+                  code: String(psql.exitCode),
+                  error: ((psql.stderr ?? '') as string).toString().slice(0, 200) ||
+                    '<no output>',
+                }),
+              }
+            }
+
+            const out = (psql.stdout ?? '').toString().trim()
+            if (!out) {
+              return {
+                result: 'loading',
+                message: i18n('indexer has not run a sync cycle yet.'),
+              }
+            }
+            const parts = out.split('|')
+            const endBlockHeight = parseInt(parts[0] ?? '0', 10) || 0
+            const ageSec = -1 // Go indexer has no per-sync timestamp surface
+
+            const probe = await spacedSub.exec(
+              [
+                '/root/.cargo/bin/space-cli',
+                '--chain',
+                SPACED_CHAIN,
+                '--rpc-user',
+                spacedAuth.username,
+                '--rpc-password',
+                spacedAuth.password,
+                '--output-format',
+                'json',
+                'getserverinfo',
+              ],
+              {},
+            )
+            let spacedBlocks = 0
+            if (probe.exitCode === 0) {
+              try {
+                const parsed = JSON.parse((probe.stdout ?? '').toString())
+                spacedBlocks = parsed?.chain?.blocks ?? 0
+              } catch {
+                /* ignore */
+              }
+            }
+
+            if (endBlockHeight === 0) {
+              return {
+                result: 'loading',
+                message: i18n(
+                  'indexer has not yet committed any blocks (spaced tip ${tip}).',
+                  { tip: String(spacedBlocks) },
+                ),
+              }
+            }
+
+            const lag = Math.max(0, spacedBlocks - endBlockHeight)
+            if (spacedBlocks > 0 && lag <= 5) {
+              return {
+                result: 'success',
+                message: i18n(
+                  'indexer caught up at block ${end} (spaced tip ${tip}).',
+                  {
+                    end: String(endBlockHeight),
+                    tip: String(spacedBlocks),
+                  },
+                ),
+              }
+            }
+
+            return {
+              result: 'loading',
+              message: i18n(
+                'indexer at block ${end}, ${lag} behind spaced tip ${tip}.',
+                {
+                  end: String(endBlockHeight),
+                  lag: String(lag),
+                  tip: String(spacedBlocks),
+                },
+              ),
+            }
+          } catch (e) {
+            return {
+              result: 'failure',
+              message: i18n('Indexer Sync health check crashed: ${error}', {
+                error: (e as Error)?.message ?? String(e),
+              }),
+            }
+          }
+        },
+        gracePeriod: 60_000,
+        trigger: sdk.trigger.cooldownTrigger(30_000),
+      },
+      requires: ['indexer', 'postgres'],
+    })
 })
@@ -17,6 +17,18 @@ export const manifest = setupManifest({
      source: { dockerTag: 'horologger/spaces:v0.0.9s' },
      arch: ['x86_64', 'aarch64'],
    },
+    postgres: {
+      source: { dockerTag: 'postgres:16.3' },
+      arch: ['x86_64', 'aarch64'],
+    },
+    'indexer-go': {
+      source: { dockerTag: 'golang:1.23-alpine' },
+      arch: ['x86_64', 'aarch64'],
+    },
+    'explorer-ui': {
+      source: { dockerTag: 'node:20-alpine' },
+      arch: ['x86_64', 'aarch64'],
+    },
  },
  alerts: {
    install: null,
@@ -16,6 +16,42 @@ export const BITCOIND_RPC_PORT = 8332

 export const SPACED_CHAIN = 'mainnet'

+export const POSTGRES_PORT = 5432
+export const POSTGRES_USER = 'postgres'
+export const POSTGRES_DB = 'spacesprotocol_explorer'
+export const pgDataDir = '/data/postgres'
+
+export const INDEXER_REPO = 'spacesprotocol/explorer-indexer'
+export const INDEXER_GIT_SHA = '00ae1e548734d93f1a8bb9f48d2290f459e12b35'
+// Bump the suffix to force a full re-fetch + rebuild of /data/explorer-indexer.
+export const INDEXER_BUILD_ID = `${INDEXER_GIT_SHA}-g3`
+export const INDEXER_TARBALL_URL = `https://github.com/${INDEXER_REPO}/archive/${INDEXER_GIT_SHA}.tar.gz`
+export const INDEXER_DIR = '/data/explorer-indexer'
+export const INDEXER_BIN_DIR = '/data/explorer-indexer/bin'
+export const INDEXER_SYNC_BIN = '/data/explorer-indexer/bin/sync'
+export const INDEXER_GOOSE_BIN = '/data/explorer-indexer/bin/goose'
+export const INDEXER_SCHEMA_DIR = '/data/explorer-indexer/sql/schema'
+export const INDEXER_MARKER = '/data/explorer-indexer/.installed-sha'
+
+// Spaces protocol mainnet activation block (per spacesprotocol/explorer-indexer
+// env.example). Indexer skips fast-sync below FAST_SYNC and starts indexing
+// spaces data at ACTIVATION.
+export const INDEXER_ACTIVATION_HEIGHT = '871222'
+export const INDEXER_FAST_SYNC_HEIGHT = '864000'
+export const INDEXER_UPDATE_INTERVAL = '5'
+export const INDEXER_MEMPOOL_CHUNK_SIZE = '200'
+
+export const EXPLORER_REPO = 'randomlogin/explorer'
+export const EXPLORER_GIT_SHA = 'c827da1754c3cba5c5507d2c29f21b8fa231344d'
+// Bump suffix to force re-fetch + rebuild of /data/explorer-ui.
+export const EXPLORER_BUILD_ID = `${EXPLORER_GIT_SHA}-e1`
+export const EXPLORER_TARBALL_URL = `https://github.com/${EXPLORER_REPO}/archive/${EXPLORER_GIT_SHA}.tar.gz`
+export const EXPLORER_DIR = '/data/explorer-ui'
+export const EXPLORER_BUILD_DIR = '/data/explorer-ui/build'
+export const EXPLORER_MARKER = '/data/explorer-ui/.installed-sha'
+export const EXPLORER_PORT = 3000
+export const EXPLORER_NETWORK = 'mainnet'
+
 export function randomPassword() {
  // bitcoind's generate-rpc-dependent action validates the password against
  // /^[A-Za-z0-9_-]+$/, so the charset must stay in that set.
@@ -1,7 +1,7 @@
 import { VersionGraph } from '@start9labs/start-sdk'
-import { v_0_0_9_0_a1 } from './v0.0.9.0.a1'
+import { v_0_0_9_1 } from './v0.0.9.1'

 export const versionGraph = VersionGraph.of({
-  current: v_0_0_9_0_a1,
+  current: v_0_0_9_1,
  other: [],
 })
@@ -1,14 +0,0 @@
-import { IMPOSSIBLE, VersionInfo } from '@start9labs/start-sdk'
-
-export const v_0_0_9_0_a1 = VersionInfo.of({
-  version: '0.0.9:0-alpha.1',
-  releaseNotes: {
-    en_US: `- Add "Reset Spaced State" action so a corrupt /data/mainnet/ index can be wiped from the UI.
- Web terminal no longer requires spaced to be healthy, so gotty stays reachable when spaced crash-loops.
- Initial build bundles spaced + space-cli from horologger/spaces:v0.0.9s, managed spaced daemon (mainnet only), gotty browser terminal with admin basic auth, and the Bitcoin Core 31.x dependency.`,
-  },
-  migrations: {
-    up: async ({ effects }) => {},
-    down: IMPOSSIBLE,
-  },
-})
@@ -0,0 +1,23 @@
+import { IMPOSSIBLE, VersionInfo } from '@start9labs/start-sdk'
+
+export const v_0_0_9_1 = VersionInfo.of({
+  version: '0.0.9:1',
+  releaseNotes: {
+    en_US: `- Embedded explorer (PostgreSQL + Go indexer + SvelteKit web UI) is now **opt-in**. Fresh installs run in spaces-only mode (spaced + gotty terminal). New "Enable Embedded Explorer" action turns the whole bundle on; "Disable Embedded Explorer" turns it back off. Both auto-restart the service so the new daemon graph takes effect. Indexed data on disk is preserved across toggles.
+- Embedded SvelteKit explorer web UI (randomlogin/explorer @ c827da175). Fetched into /data/explorer-ui on first enable, \`npm install\` + \`npm run build\` produce a SvelteKit node-adapter bundle, and \`node build\` runs as a managed daemon on port 3000. Exposed as a StartOS interface so it appears alongside the gotty terminal in the dashboard. Reads exclusively from the embedded PostgreSQL; does not talk to spaced or bitcoind directly. New "Reset Explorer UI State" action wipes the cache for a clean rebuild. Adds a fourth manifest image \`node:20-alpine\`.
+- Embedded spaces-protocol explorer indexer (Go, spacesprotocol/explorer-indexer @ 00ae1e548). When enabled, on first start its source tarball is fetched into /data/explorer-indexer, the \`sync\` binary and \`goose\` migrator are built into /data/explorer-indexer/bin, the goose-managed SQL schema is applied to the embedded PostgreSQL, and the sync binary runs as a managed daemon that polls bitcoind + spaced and writes to the database.
+- Two patches applied to the indexer source during \`indexer-fetch\` to handle our older spaced binary: \`pkg/node/types.go\` makes \`ptrs_root\` optional in RootAnchor, and \`pkg/store/store.go\` skips the \`getptrblockmeta\` RPC call. Subspaces pointer data won't be indexed; everything else (blocks, transactions, spaces, rollouts, root anchors) does.
+- Spaced is now configured with static RPC credentials (SPACED_RPC_USER / SPACED_RPC_PASSWORD seeded into store.json.spacedAuth) instead of cookie auth, so the indexer and the gotty terminal share a single auth path. space-cli inside the terminal aliases to \`--rpc-user "$SPACED_RPC_USER" --rpc-password "$SPACED_RPC_PASSWORD"\`.
+- New "Indexer Sync" standalone health check queries the blocks table for the highest non-orphan block and cross-references against spaced's tip; success when within 5 blocks, otherwise loading with explicit lag.
+- New "Reset Indexer State" action wipes /data/explorer-indexer so the next start re-fetches the pinned commit and rebuilds the binaries.
+- Embedded PostgreSQL 16.3 daemon on loopback 127.0.0.1:5432 (data at /data/postgres). "Show Database Credentials" + "Reset Database State" actions. POSTGRES_URI exported into the gotty terminal.
+- Indexer container is a third manifest image (\`golang:1.23-alpine\`) used both to build the binaries and to run \`sync\`.
+- "Reset Spaced State" action so a corrupt /data/mainnet/ index can be wiped from the UI.
+- Web terminal no longer requires spaced to be healthy, so gotty stays reachable when spaced crash-loops.
+- Initial build bundles spaced + space-cli from horologger/spaces:v0.0.9s, managed spaced daemon (mainnet only), gotty browser terminal with admin basic auth, and the Bitcoin Core 31.x dependency.`,
+  },
+  migrations: {
+    up: async ({ effects }) => {},
+    down: IMPOSSIBLE,
+  },
+})