diff --git a/.gitignore b/.gitignore
index 8af72bc464..cd442edb85 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,6 +24,10 @@ secrets/*
 !secrets/README.md
 docker-compose.override.yml
 !docker-compose.override.yml.example
+# Fleet-mode ↔ ams-observability bridge override an operator copies from the committed `.example` (#5805); their
+# real host path stays local, only the `.example` template is tracked.
+packages/loopover-miner/docker-compose.miner.override.yml
+!packages/loopover-miner/docker-compose.miner.override.yml.example
 *.local
 # A second local-override naming shape beyond bare `*.local` (e.g. alertmanager.local): a host-specific
 # compose override named docker-compose.local-<label>.yml (label distinguishes multiple such overrides
diff --git a/docker-compose.yml b/docker-compose.yml
index 5dcac30a98..7d3456decd 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -851,6 +851,9 @@ services:
     volumes:
       # Read-only live-ledger access for the exporter only -- Grafana does not get this mount (mirrors the
       # /appdb:ro pattern above). Point this at the SAME host directory your miner uses as LOOPOVER_MINER_CONFIG_DIR.
+      # LAPTOP mode already writes there. FLEET mode (packages/loopover-miner/docker-compose.miner.yml) keeps state
+      # in a named volume, so it needs the opt-in bind-mount override + combined command -- see "Running fleet mode
+      # alongside ORB's ams-observability profile" in packages/loopover-miner/DEPLOYMENT.md (#5805).
       - "${LOOPOVER_MINER_CONFIG_DIR:-~/.config/loopover-miner}:/ams-ledgers:ro"
       - grafana-reporting-data:/reporting
       # Directory bind mount, not a single-file one -- see reporting-exporter's own comment above for why
diff --git a/packages/loopover-miner/DEPLOYMENT.md b/packages/loopover-miner/DEPLOYMENT.md
index e53f2facd5..1c3b2a93d2 100644
--- a/packages/loopover-miner/DEPLOYMENT.md
+++ b/packages/loopover-miner/DEPLOYMENT.md
@@ -135,6 +135,24 @@ docker compose -f docker-compose.miner.yml up -d --build
 
 **Scaling to N parallel workers.** `docker compose -f docker-compose.miner.yml up -d --scale miner=N` gives every replica the **same** `miner-data` volume — and the miner's SQLite ledgers are **not** safe for concurrent access, so N replicas on one volume will contend/corrupt. To run N **isolated** workers, give each its own state: run N separate compose projects (`docker compose -p miner-1 …`, `-p miner-2 …` — `-p` namespaces the volume) or point each at a distinct `LOOPOVER_MINER_CONFIG_DIR` on its own mount. For built-in isolated horizontal scaling, use the Kubernetes StatefulSet in [`k8s/`](../../k8s/) (per-pod volumes).
 
+### Running fleet mode alongside ORB's `ams-observability` profile
+
+Fleet mode keeps miner state in a named `miner-data` volume, but ORB's `ams-reporting-exporter` (root [`docker-compose.yml`](../../docker-compose.yml), `--profile ams-observability`) reads the miner's ledgers from a **host** directory (default `~/.config/loopover-miner`). A named volume's host path is a Docker-managed internal detail, so the two never line up on their own — the exporter reads an empty directory and the Grafana AMS datasources stay **silently empty**.
+
+To bridge them, relocate the fleet miner's state onto a host directory with the opt-in override, then run both profiles together:
+
+```sh
+cp packages/loopover-miner/docker-compose.miner.override.yml.example \
+   packages/loopover-miner/docker-compose.miner.override.yml   # gitignored; edit the host path only if you want a non-default location
+
+docker compose -f docker-compose.yml \
+  -f packages/loopover-miner/docker-compose.miner.yml \
+  -f packages/loopover-miner/docker-compose.miner.override.yml \
+  --profile ams-observability up -d
+```
+
+The override bind-mounts `/data/miner` to `${LOOPOVER_MINER_CONFIG_DIR:-~/.config/loopover-miner}` — the **same** variable and default the exporter already uses — so both read one location with no `docker volume inspect` archaeology. Leave both unset for the default, or set `LOOPOVER_MINER_CONFIG_DIR` once and both the fleet miner and the exporter follow it. This override is opt-in and additive: without it, `docker-compose.miner.yml`'s named-volume default is unchanged.
+
 ## Bare-host (systemd, no Docker)
 
 To run the miner continuously on a plain Linux host without Docker, supervise `loopover-miner loop` — the autonomous discover → attempt → manage daemon (#5135) — with systemd. [`systemd/loopover-miner.service.example`](../../systemd/loopover-miner.service.example) is a ready-to-adapt persistent unit; its header carries the full install steps:
diff --git a/packages/loopover-miner/docker-compose.miner.override.yml.example b/packages/loopover-miner/docker-compose.miner.override.yml.example
new file mode 100644
index 0000000000..6e06f9f1a0
--- /dev/null
+++ b/packages/loopover-miner/docker-compose.miner.override.yml.example
@@ -0,0 +1,32 @@
+# Optional fleet-mode ↔ ORB `ams-observability` bridge (#5805). Copy to `docker-compose.miner.override.yml`
+# (gitignored) and use it ONLY when you run the fleet-mode miner AND ORB's `--profile ams-observability` on the
+# SAME host and want the Grafana AMS dashboards populated.
+#
+# WHY THIS EXISTS: fleet mode (docker-compose.miner.yml) keeps miner state in a Docker-managed NAMED volume
+# (`miner-data`), whose real host path is an internal detail (…/var/lib/docker/volumes/<project>_miner-data/_data).
+# ORB's `ams-reporting-exporter` (root docker-compose.yml, `ams-observability` profile) reads the miner's ledgers
+# via a HOST bind mount defaulting to `~/.config/loopover-miner` (laptop mode's path). Those two never resolve to
+# the same location, so with the plain fleet-mode setup the exporter reads an empty directory and the Grafana AMS
+# datasources stay silently empty, with no error surfaced anywhere. This override relocates the fleet miner's
+# `/data/miner` state onto a real host directory the exporter can read.
+#
+# HOW IT STAYS IN SYNC: the bind source below uses the SAME `${LOOPOVER_MINER_CONFIG_DIR:-~/.config/loopover-miner}`
+# variable and default the exporter already uses, so both read one location automatically — no `docker volume
+# inspect` archaeology. Leave both unset to use the default; or set `LOOPOVER_MINER_CONFIG_DIR` once and BOTH the
+# fleet miner (via this override) and the exporter follow it.
+#
+# HOW TO USE — run the two profiles together (see DEPLOYMENT.md's "Running fleet mode alongside ORB's
+# ams-observability profile" section for the full walkthrough):
+#
+#   docker compose -f docker-compose.yml \
+#     -f packages/loopover-miner/docker-compose.miner.yml \
+#     -f packages/loopover-miner/docker-compose.miner.override.yml \
+#     --profile ams-observability up -d
+#
+# Compose merges a service's `volumes` by container path, so this bind mount REPLACES the base file's
+# `miner-data:/data/miner` named-volume mount for the same `/data/miner` target — it does not add a second mount.
+# The now-unused `miner-data` top-level volume declaration in the base file stays declared but unmounted (harmless).
+services:
+  miner:
+    volumes:
+      - "${LOOPOVER_MINER_CONFIG_DIR:-~/.config/loopover-miner}:/data/miner"
diff --git a/test/unit/ams-observability-compose-parity.test.ts b/test/unit/ams-observability-compose-parity.test.ts
new file mode 100644
index 0000000000..f9923534e6
--- /dev/null
+++ b/test/unit/ams-observability-compose-parity.test.ts
@@ -0,0 +1,89 @@
+import { readFileSync } from "node:fs";
+import { join } from "node:path";
+import { describe, expect, it } from "vitest";
+import { parse } from "yaml";
+
+// #5805: the fleet-mode miner (docker-compose.miner.yml, named `miner-data` volume) and ORB's
+// `ams-reporting-exporter` (root docker-compose.yml, `ams-observability` profile, host bind mount) were authored in
+// the same wave but never cross-checked, so their ledger locations silently didn't line up. The opt-in override
+// (docker-compose.miner.override.yml.example) bridges them by relocating the miner's `/data/miner` state onto the
+// SAME host path the exporter reads. This static parity check (no docker required) makes sure the override's bind
+// source, the exporter's bind source, and the DEPLOYMENT.md instructions can't silently drift apart again.
+
+const ROOT = join(__dirname, "..", "..");
+const read = (rel: string) => readFileSync(join(ROOT, rel), "utf8");
+
+const rootComposeText = read("docker-compose.yml");
+const minerComposeText = read("packages/loopover-miner/docker-compose.miner.yml");
+const overrideText = read("packages/loopover-miner/docker-compose.miner.override.yml.example");
+const deploymentDoc = read("packages/loopover-miner/DEPLOYMENT.md");
+
+const rootCompose = parse(rootComposeText) as {
+  services: Record<string, { profiles?: string[]; volumes?: string[] }>;
+};
+const minerCompose = parse(minerComposeText) as {
+  services: Record<string, { volumes?: string[] }>;
+  volumes?: Record<string, unknown>;
+};
+const override = parse(overrideText) as {
+  services: Record<string, { volumes?: string[] }>;
+  volumes?: Record<string, unknown>;
+  networks?: Record<string, unknown>;
+};
+
+/** Strip a known `:TARGET[:MODE]` suffix off a compose short-syntax volume to recover its source expression
+ *  (the source itself contains `${VAR:-default}` colons, so a naive split would break). */
+function sourceForTarget(volumes: string[] | undefined, target: string): string {
+  const match = (volumes ?? []).find((v) => v.includes(`:${target}`));
+  if (!match) throw new Error(`no volume targeting ${target}`);
+  return match.slice(0, match.indexOf(`:${target}`));
+}
+
+describe("AMS fleet-mode ↔ ams-observability compose bridge (#5805)", () => {
+  const EXPECTED_SOURCE = "${LOOPOVER_MINER_CONFIG_DIR:-~/.config/loopover-miner}";
+
+  it("the override bind source matches the exporter's bind source (single shared location)", () => {
+    const exporter = rootCompose.services["ams-reporting-exporter"];
+    expect(exporter?.profiles).toContain("ams-observability");
+    const exporterSource = sourceForTarget(exporter?.volumes, "/ams-ledgers");
+    const overrideSource = sourceForTarget(override.services["miner"]?.volumes, "/data/miner");
+    // Same variable AND same default ⇒ both profiles read one host directory with zero extra config.
+    expect(exporterSource).toBe(EXPECTED_SOURCE);
+    expect(overrideSource).toBe(EXPECTED_SOURCE);
+    expect(overrideSource).toBe(exporterSource);
+  });
+
+  it("the override REPLACES the base /data/miner mount by target (no duplicate-target collision)", () => {
+    const baseTarget = "/data/miner";
+    // The base fleet miner mounts the named volume at /data/miner...
+    expect(sourceForTarget(minerCompose.services["miner"]?.volumes, baseTarget)).toBe("miner-data");
+    // ...and the override mounts a host dir at the SAME target, so compose merges them to one mount (the override's),
+    // rather than two mounts fighting over /data/miner.
+    const overrideMiner = override.services["miner"]?.volumes ?? [];
+    expect(overrideMiner.filter((v) => v.includes(`:${baseTarget}`))).toHaveLength(1);
+    expect(sourceForTarget(overrideMiner, baseTarget)).toBe(EXPECTED_SOURCE);
+  });
+
+  it("the override introduces no top-level volume/network/service name that could collide across the three files", () => {
+    // Purely additive to the miner service's volumes — no new top-level declarations to clash with either file.
+    expect(override.volumes).toBeUndefined();
+    expect(override.networks).toBeUndefined();
+    expect(Object.keys(override.services)).toEqual(["miner"]);
+  });
+
+  it("DEPLOYMENT.md documents the override, the combined three-file command, and the shared variable", () => {
+    expect(deploymentDoc).toContain("Running fleet mode alongside ORB's `ams-observability` profile");
+    expect(deploymentDoc).toContain("docker-compose.miner.override.yml");
+    // the exact combined invocation, all three -f files present
+    expect(deploymentDoc).toContain("-f docker-compose.yml");
+    expect(deploymentDoc).toContain("-f packages/loopover-miner/docker-compose.miner.yml");
+    expect(deploymentDoc).toContain("-f packages/loopover-miner/docker-compose.miner.override.yml");
+    expect(deploymentDoc).toContain("--profile ams-observability up -d");
+    expect(deploymentDoc).toContain(EXPECTED_SOURCE);
+  });
+
+  it("the root exporter comment cross-links the DEPLOYMENT.md walkthrough", () => {
+    expect(rootComposeText).toContain("packages/loopover-miner/DEPLOYMENT.md");
+    expect(rootComposeText).toMatch(/fleet mode[\s\S]{0,200}ams-observability/i);
+  });
+});