diff --git a/scripts/GPUQ.md b/scripts/GPUQ.md
index beecb75..b8928e2 100644
--- a/scripts/GPUQ.md
+++ b/scripts/GPUQ.md
@@ -144,3 +144,44 @@ Local `~/gpuq/` is scratch; the bucket is the source of truth.
 The bucket credentials on rented nodes are readable by the host operator:
 keep the `jspace` remote scoped to this project's bucket, and rotate the
 key after each rental burst (already flagged in vast-ai-notes.md).
+
+---
+
+## As deployed (2026-07-14) — operator cheat sheet
+
+**Fleet:**
+
+| node | workers | supervisor lives in |
+|---|---|---|
+| `node3` (8×H100, vast) | `node3-gpu0` … `node3-gpu7` | tmux `ssh_tmux:gpuq_sup` |
+| `node2` (2×H100, vast) | `node2-gpu0`, `node2-gpu1` | tmux `ssh_tmux:gpuq_sup` (drain watcher armed on the Spark) |
+| `spark` (GB10) | `spark-gpu0` | detached, tmux session `gpuq_spark` |
+
+**Daily usage (from the Spark or anywhere with the `jspace` remote):**
+
+```bash
+bash scripts/gpuq_submit.sh node3-gpu4 myjob.sh   # submit to a specific GPU
+bash scripts/gpuq_submit.sh --status               # pending + last 20 done
+rclone cat jspace:jspace/gpuq/_health/node3.txt    # heartbeat; stale >2 min = trouble
+rclone cat jspace:jspace/gpuq/node3-gpu4/done/myjob.log | tail -30
+```
+
+**Job conventions (learned the hard way — see LESSONS.md):**
+
+1. First line of work: `cd <repo> && git pull origin main -q` — jobs
+   self-update; never rely on what a node cloned at boot (repo is public,
+   no keys needed).
+2. `HF_HUB_OFFLINE=1` ONLY if every model/dataset the job touches is already
+   cached on that node — it blocks `datasets` downloads too (bit us twice).
+3. Jobs end with their own `rclone copy` of artifacts to the bucket; the
+   queue ships only the log automatically.
+4. Env the job must set itself: venv activation (`/venv/main` on vast,
+   `~/jspace/.venv` on the Spark), `JLENS_MODEL`, `JLENS_BAND`, `LOOP_OUT`,
+   `HF_HOME`. The worker provides exactly one thing: `CUDA_VISIBLE_DEVICES`.
+5. Ordering on one GPU = filename sort (`00_train.sh`, `01_eval.sh`).
+   Cross-GPU deps: submit after the prerequisite shows in `--status`, or
+   add an `until rclone lsf <artifact>; do sleep 60; done` preamble.
+6. Draining a node: stop submitting to its queues, wait for `--status` to
+   clear, `pkill -f gpuq_`, final `rclone copy` of its results dirs, then
+   destroy the instance. Pending jobs of a dead node survive in the bucket:
+   `rclone move jspace:jspace/gpuq/nodeX-gpuN/pending jspace:jspace/gpuq/nodeY-gpuM/pending`.