diff --git a/infra/terraform/test-fleet/README.md b/infra/terraform/test-fleet/README.md
index 4e3097db..146c4ed9 100644
--- a/infra/terraform/test-fleet/README.md
+++ b/infra/terraform/test-fleet/README.md
@@ -51,6 +51,20 @@ Run it anytime — before you even have a DO account. It uses a **mocked** provi
 Results land merged under `.local/iter/<stamp>/` (disjoint seed numbers per
 worker via `SEED_OFFSET`, so no collisions). RL sweeps: `./run dist:train <steps>`.
 
+**Build once, load many** — instead of N workers each recompiling the gdext,
+publish the linux `.so`+wasm once and let the others fetch it (keyed by git sha,
+via the `magicciv-artifacts` DO Space):
+
+```sh
+./run dist:up 3
+./run dist:publish        # one worker builds + uploads builds/<sha>/{.so,wasm}
+./run dist:sync           # all workers fetch the prebuilt .so (no recompile)
+./run dist:models ls      # share RL .onnx via the same Space (push/pull/ls)
+```
+
+`dist:sync` falls back to building when there's no published artifact for the
+sha (or no Spaces creds). Full verb table + gotchas: `cloud-dx-do.md`.
+
 ## Cost
 
 Pure pay-as-you-go, billed hourly only while `workers > 0` (⚠️ approximate — confirm in the DO console):