diff --git a/scripts/AGENTS.md b/scripts/AGENTS.md
index 757d835..59a4f3c 100644
--- a/scripts/AGENTS.md
+++ b/scripts/AGENTS.md
@@ -21,6 +21,29 @@ Bash-only (deployment / CI / OSS-user setup — not intended for Windows contrib
 - `format.sh` / `lint.sh` / `pre_commit.sh`
 - `generate_sdk.sh` / `release_sdks.sh` / `dump_docs_openapi.py`
 
+## Deployment Memory — current OSS Docker state
+
+This directory now has a shared deployment model for OSS Docker installs. If you touch any of the scripts below, assume they are coupled and review them together:
+
+- `scripts/lib/setup_common.sh` is the shared deployment helper library. It is sourced by `setup_local.sh`, `setup_remote.sh`, `update_remote.sh`, `setup_custom_domain.sh`, `run_dograh_init.sh`, and repo-root `remote_up.sh`.
+- `setup_common.sh` must stay safe to source. It should not set shell options like `set -u` for callers.
+- `.env` is the single operator-owned source of truth for remote deployment settings. Remote/runtime config should derive from it, not the other way around.
+- Canonical remote keys in `.env`: `ENVIRONMENT`, `SERVER_IP`, `PUBLIC_HOST`, `PUBLIC_BASE_URL`, `BACKEND_API_ENDPOINT`, `MINIO_PUBLIC_ENDPOINT`, `TURN_HOST`, `TURN_SECRET`, `FASTAPI_WORKERS`, `OSS_JWT_SECRET`.
+- `remote_up.sh` is the supported remote startup entrypoint. It runs preflight via `dograh_prepare_remote_install`, runs `docker compose config -q`, then starts the stack.
+- `docker-compose.yaml` uses a one-shot `dograh-init` service for profiles `remote` and `local-turn`.
+- `dograh-init` executes `scripts/run_dograh_init.sh`, which renders nginx/coturn runtime config into named volumes consumed by `nginx` and `coturn`.
+- Remote nginx/coturn config is runtime-generated. Host-managed `nginx.conf` / `turnserver.conf` are legacy only; update flow may back them up and delete them, but current installs should not depend on them.
+- `setup_remote.sh` writes `.env`, downloads the deployment helper bundle, generates self-signed certs, validates the init-based config, and tells operators to start via `./remote_up.sh` or `./remote_up.sh --build`.
+- `update_remote.sh` is the migration/upgrade path for prebuilt remote installs. It refreshes `docker-compose.yaml`, `remote_up.sh`, `scripts/run_dograh_init.sh`, `scripts/lib/setup_common.sh`, and `deploy/templates/*`, backs up touched files, removes legacy host `nginx.conf` / `turnserver.conf`, and revalidates the init-based path.
+- `setup_custom_domain.sh` is certificate/domain glue only. It must not own nginx config. It updates canonical public URL keys in `.env`, copies Let's Encrypt certs into `certs/`, installs renewal hook, and restarts through `./remote_up.sh`.
+- `setup_local.sh` has an interactive `Enable coturn? [y/N]` prompt unless `ENABLE_COTURN` is preset. If coturn is enabled, it downloads the minimal helper bundle needed for `local-turn` (`setup_common.sh`, `run_dograh_init.sh`, templates) and relies on `dograh-init` to render coturn config.
+- `setup_local.sh` must remain safe under unset env vars; use `${VAR:-}` guards for optional inputs like `ENABLE_COTURN`, `TURN_HOST`, `TURN_SECRET`, `DOGRAH_SKIP_DOWNLOAD`.
+- `run_dograh_init.sh` is an executable entrypoint, not a library. Compose runs it directly. If it ever gets refactored, keep the distinction between sourced helper logic (`lib/`) and executable entrypoints.
+- `dograh_prepare_remote_install` in `setup_common.sh` currently does three things: sync canonical `.env` keys, reject legacy compose layouts that do not use `dograh-init`, and preflight the init render in a temp directory.
+- `dograh_uses_init_compose_layout` / `dograh_require_init_compose_layout` are the guardrails for old installs. If a remote install still bind-mounts host `nginx.conf` / `turnserver.conf`, the intended fix path is `./update_remote.sh`.
+- Templates live under `deploy/templates/`. `nginx.remote.conf.template` contains the static shape and `dograh_render_remote_nginx_conf` expands the multi-worker upstream block dynamically. `turnserver.remote.conf.template` is also rendered from env.
+- If you rename/move any of these deployment files, update all of: bootstrap curl URLs inside scripts, helper-bundle download paths in `setup_common.sh`, backup lists in `update_remote.sh`, docs under `docs/deployment/`, and any existence checks in `setup_local.sh` / `setup_custom_domain.sh`.
+
 ## The three "start" scripts — pick the right one
 
 | Script                     | Where it runs      | Key behavior                                                                                                                    |