diff --git a/docs/ops/teqo-1313-deploy.md b/docs/ops/teqo-1313-deploy.md
index f6509030..8b5cc0c5 100644
--- a/docs/ops/teqo-1313-deploy.md
+++ b/docs/ops/teqo-1313-deploy.md
@@ -12,10 +12,12 @@ com a suite verde publica o site em `jorgesolla1313.com.br` — sem passo manual
    `ssh homeserver "bash -s -- <sha>" < scripts/deploy-homeserver.sh`.
 4. O script, no **homeserver**: guarda de HEAD (`main` remoto == SHA do job,
    senão skip) → `flock` (serializa) → build da imagem standalone + migrator
-   (BuildKit, secrets do `~/stack/teqo-1313.env`, rede `stack_default`) →
+   (BuildKit, secrets do `~/stack/teqo-1313.env`, `--network host` com proxy
+   socat `teqo-1313-build-proxy` na `stack_default` para o build alcançar o
+   `postgres` — o proxy é criado idempotentemente pelo script) →
    push em `localhost:5000` → swap dos tags de imagem no
    `~/stack/docker-compose.yml` (backup antes) → **migrations**
-   (`docker compose --profile maintenance run --rm teqo-1313-migrate`) →
+   (`docker compose --profile maintenance run --rm teqo-1313-migrate </dev/null`) →
    `docker compose up -d teqo-1313` → healthcheck → smoke (`/`,
    `/campanha/login`, `/admin`, barreira 307, WebAuthn login-options,
    `api/revalidate` com o secret real).
@@ -59,14 +61,16 @@ roda após build+push ok; rollout só após migrate ok).
 
 ## Falhas conhecidas
 
-| Sintoma                                                                       | Causa                                                                                                                                                            | Tratamento                                                                                                                                            |
-| ----------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------- |
-| Job verde sem deploy ("stale run")                                            | Push mais novo venceu; o deploy antigo saiu da fila                                                                                                              | Nada a fazer — o run do SHA novo deploya                                                                                                              |
-| Todo job docker quebra com `exec: "node": executable file not found in $PATH` | `runner.envs.PATH` do `~/.forgejo-runner/config.yaml` (workstation) com paths só de host (nvm/bun) — o container perde o node do toolcache (`/opt/acttoolcache`) | Corrigir o PATH no config (toolcache primeiro — ver comentário no próprio arquivo) + `systemctl --user restart forgejo-runner` (incidente 2026-08-17) |
-| Build OOM no homeserver                                                       | Laptop 8c/16GB com o stack ativo (~12GB livres medidos)                                                                                                          | Re-dispatch; se recorrente, item futuro: build na workstation com túnel                                                                               |
-| `checkout@v5` falha no job `host`                                             | Label host do act_runner                                                                                                                                         | Fallback: baixar o script direto do Forgejo (`curl -s https://git.solla.dev/fsolla/teqo/raw/branch/main/scripts/deploy-homeserver.sh`)                |
-| Migrate falha                                                                 | Drift/erro de schema                                                                                                                                             | Job vermelho; site segue no container antigo; corrigir e re-mergear                                                                                   |
-| Smoke falha pós-up                                                            | Regressão de runtime                                                                                                                                             | Rollback automático (restore + `up -d`) + job vermelho; investigar                                                                                    |
+| Sintoma                                                                       | Causa                                                                                                                                                                                                                                            | Tratamento                                                                                                                                                                                                                     |
+| ----------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
+| Job verde sem deploy ("stale run")                                            | Push mais novo venceu; o deploy antigo saiu da fila                                                                                                                                                                                              | Nada a fazer — o run do SHA novo deploya                                                                                                                                                                                       |
+| Todo job docker quebra com `exec: "node": executable file not found in $PATH` | `runner.envs.PATH` do `~/.forgejo-runner/config.yaml` (workstation) com paths só de host (nvm/bun) — o container perde o node do toolcache (`/opt/acttoolcache`); edição do config exige o toolcache primeiro (ver comentário no próprio config) | Corrigir o PATH no config (toolcache primeiro — ver comentário no próprio arquivo) + `systemctl --user restart forgejo-runner` (incidente 2026-08-17)                                                                          |
+| Deploy para logo após o migrate ("Done." e nada mais, EXIT=0)                 | `docker compose run` anexa stdin por padrão — o container consome o resto do script que vai no pipe do `bash -s`; o bash chega a EOF e termina sem rodar o rollout                                                                               | O script já usa `< /dev/null` no `run --rm` do migrate (não remover); sintoma visto 2026-08-17 no primeiro deploy                                                                                                              |
+| Build falha: `network mode "stack_default" not supported by buildkit`         | BuildKit (drivers docker e docker-container) recusa rede bridge custom no `--network`                                                                                                                                                            | O script builda com `--network host` + proxy socat `teqo-1313-build-proxy` (na `stack_default`, publicado em 127.0.0.1:5433, criado idempotentemente com `restart: unless-stopped`) + `DATABASE_URL` reescrita para o loopback |
+| Build OOM no homeserver                                                       | Laptop 8c/16GB com o stack ativo (~12GB livres medidos)                                                                                                                                                                                          | Re-dispatch; se recorrente, item futuro: build na workstation com túnel                                                                                                                                                        |
+| `checkout@v5` falha no job `host`                                             | Label host do act_runner                                                                                                                                                                                                                         | Fallback: baixar o script direto do Forgejo (`curl -s https://git.solla.dev/fsolla/teqo/raw/branch/main/scripts/deploy-homeserver.sh`)                                                                                         |
+| Migrate falha                                                                 | Drift/erro de schema                                                                                                                                                                                                                             | Job vermelho; site segue no container antigo; corrigir e re-mergear                                                                                                                                                            |
+| Smoke falha pós-up                                                            | Regressão de runtime                                                                                                                                                                                                                             | Rollback automático (restore + `up -d`) + job vermelho; investigar                                                                                                                                                             |
 
 ## Segurança (decisão deliberada)
 
diff --git a/scripts/deploy-homeserver.sh b/scripts/deploy-homeserver.sh
index 6d07eced..03122353 100644
--- a/scripts/deploy-homeserver.sh
+++ b/scripts/deploy-homeserver.sh
@@ -84,11 +84,30 @@ echo "$REGISTRY_PASSWORD" | docker login localhost:5000 --username "$REGISTRY_US
 
 # --- build --------------------------------------------------------------
 
+# BuildKit rejects a custom bridge network on `--network`, so the build runs
+# with `--network host`; the prod DB (only reachable inside stack_default) is
+# proxied to the host loopback by a one-off socat container on the compose
+# network, and DATABASE_URL is rewritten to that endpoint. The proxy is
+# idempotent and survives reboots (restart: unless-stopped).
+ensure_db_proxy() {
+  if ! docker inspect teqo-1313-build-proxy >/dev/null 2>&1; then
+    docker run -d --name teqo-1313-build-proxy \
+      --network stack_default \
+      --restart unless-stopped \
+      -p 127.0.0.1:5433:5433 \
+      alpine/socat TCP-LISTEN:5433,fork TCP:postgres:5432 >/dev/null
+  fi
+}
+
 build_image() {
   local target="$1" image="$2"
   say "building $target ($image)"
-  DOCKER_BUILDKIT=1 docker build \
-    --network stack_default \
+  ensure_db_proxy
+  # The build's DATABASE_URL points at the loopback proxy; the outer env
+  # keeps the original value and nothing is echoed.
+  local build_db_url="${DATABASE_URL/@postgres:5432/@127.0.0.1:5433}"
+  DATABASE_URL="$build_db_url" DOCKER_BUILDKIT=1 docker build \
+    --network host \
     --build-arg "NEXT_PUBLIC_SITE_URL=$NEXT_PUBLIC_SITE_URL" \
     --secret "id=database_url,env=DATABASE_URL" \
     --secret "id=payload_secret,env=PAYLOAD_SECRET" \
@@ -134,7 +153,10 @@ trap 'rollback "unexpected failure"' ERR
 
 cd "$STACK_DIR"
 say "applying pending migrations (maintenance service teqo-1313-migrate)"
-docker compose --profile maintenance run --rm teqo-1313-migrate || rollback "migrations failed"
+# `< /dev/null`: `compose run` attaches stdin by default; the container would
+# consume the rest of the script piped into `bash -s` (bash then hits EOF and
+# exits right after the migrate step, skipping the rollout).
+docker compose --profile maintenance run --rm teqo-1313-migrate </dev/null || rollback "migrations failed"
 
 # --- rollout ------------------------------------------------------------