The SQLite era is gone (on PostgreSQL since 2026-09-28; no compatibility kept): the one-time migrate-to-postgres script, *_DB_PATH settings (config, .env.example, systemd unit, test helpers), the unused better-sqlite3 dependency and its lockfile entries, and docs, docstrings and STATUS lines about SQLite or its rollback window. Reviewed independently before shipping. npm test 46/46 test files passed.

ddiff --git a/.env.example b/.env.example
iindex d5c48be..42f9a8e 100644
---- a/.env.example
++++ b/.env.example
@@@ -58,15 +58,13 @@ OV_CHAT_URL=https://openvibe.chat
  # With 'community' the OAuth client above also needs identity.subject.resolve (author names).
  PASTES_AUTHORITY=live
  # PostgreSQL (ADR-035), written by OpenVibe.Host roles/data/add-service.sh community: the runtime role through
--# PgBouncer, the owner on a direct connection (migrations and the one-time import), and Valkey (shared limit
--# counters). Comments, the forum, Pulse and the relay's bookkeeping live there in every mode; pastes too with
--# 'community'. Without DATABASE_URL, development uses an embedded PGlite database in data/pglite.
++# PgBouncer, the owner on a direct connection (migrations), and Valkey (shared limit counters). Comments, the
++# forum, Pulse and the relay's bookkeeping live there in every mode; pastes too with 'community'. Without
++# DATABASE_URL, development uses an embedded PGlite database in data/pglite.
  DATABASE_URL=
  DATABASE_DIRECT_URL=
  VALKEY_URL=
  VALKEY_PREFIX=
--# The SQLite file of releases before PostgreSQL: read once by scripts/migrate-to-postgres.js.
--COMMUNITY_DB_PATH=./data/community.db
  # Optional salt for hashed visitor ids in view counting (default: derived from the client secret)
  #VIEW_HASH_SECRET=
  
ddiff --git a/README.md b/README.md
iindex 609a49e..b89d34f 100644
---- a/README.md
++++ b/README.md
@@@ -587,7 +587,6 @@ Copy `.env.example` to `.env` (production: `/etc/openvibe/community.env`, mode 0
  | `PASTES_AUTHORITY` | `live` | `live` = proxy to Live; `community` = this site's database is the authority |
  | `DATABASE_URL`, `DATABASE_DIRECT_URL` | unset (development: embedded PGlite in `data/pglite`) | PostgreSQL through PgBouncer, and the owner's direct connection for migrations (written by OpenVibe.Host `roles/data/add-service.sh community`) |
  | `VALKEY_URL`, `VALKEY_PREFIX` | unset | per-actor limit counters shared across processes |
--| `COMMUNITY_DB_PATH` | `./data/community.db` | the SQLite file of releases before PostgreSQL, read once by `scripts/migrate-to-postgres.js` |
  | `API_CORS_ORIGINS` | Live, Media, Network, Tools, Games origins | Browser origins that may call `/api/v1/comments` and `/api/v1/pulse` with a Bearer JWT |
  | `DISCORD_RELAY_ENABLED` | off | `true` turns the Discord relay on ([docs/discord-relay.md](docs/discord-relay.md)) |
  | `DISCORD_RELAY_POLL_MS` / `DISCORD_RELAY_BACKOFF_MS` / `DISCORD_RELAY_MAX_ATTEMPTS` | `30000` / `30000` / `6` | Relay sender cadence, first retry delay, attempts before `failed` (the dead letter) |
@@@ -616,12 +615,11 @@ npm run n-1:record # after a deploy: the N-1 fixtures from the deployed commit (
  ```
  
  `test/n-1.test.js` (roadmap WS-P task 11, in `npm test`) runs the previous release's clients against
--this one and its SQL against this schema, from `test/fixtures/n-1/`: every call `community.js`, the
--templates' forms and the openvibe-sdk community client make, and every link, script and form of the
--pages that release served, each answered compatibly (status, JSON, the response fields the client
--reads); then every statement the previous release runs must still prepare after this release opened
--(and migrated) a database the previous one created. After each deploy, record the release now in
--production as the next N-1 and commit `test/fixtures/n-1/`.
++this one, from `test/fixtures/n-1/`: every call `community.js`, the templates' forms and the
++openvibe-sdk community client make, and every link, script and form of the pages that release served,
++each answered compatibly (status, JSON, the response fields the client reads); then this release must
++keep every migration that release ran byte for byte and only add. After each deploy, record the
++release now in production as the next N-1 and commit `test/fixtures/n-1/`.
  
  ## Acceptance
  
@@@ -665,10 +663,7 @@ Production deploys with `sudo ovhost deploy community` on the host (strategy `gi
  fast-forward `/opt/openvibe.community`, install on a lockfile change, restart, wait for `/api/ready`).
  The unit is `openvibe-community.service` on `127.0.0.1:4200`, the env file `/etc/openvibe/community.env`. The database is
  `ov_community` on the host's data role (`sudo /opt/openvibe.host/roles/data/add-service.sh community` writes its settings); the
--release migrates it at boot. The one-time move from SQLite is `scripts/migrate-to-postgres.js` (openvibe-sdk
--`runSqliteMigration`, with a `--pglite` rehearsal mode), run while the service is stopped; the old
--`/var/lib/openvibe-community/community.db` stays read-only for 7 days as the rollback. After a
--deploy, record the N-1 fixtures (`npm run n-1:record`).
++release migrates it at boot. After a deploy, record the N-1 fixtures (`npm run n-1:record`).
  Rollback: ovhost puts the previous sha back by itself when `/api/ready` does not answer 2xx after the
  restart; afterwards `sudo ovhost rollback community --to <sha>`. Migrations only add tables and columns.
  
@@@ -732,7 +727,6 @@ server/
  public/               css/community.css, js/community.js, favicon.svg, og-default.png
  (openvibe-shared is the pinned OpenVibe.Shared v1.25.0 release, installed by npm)
  deploy/               systemd unit, nginx vhost
--scripts/migrate-to-postgres.js  the one-time SQLite → PostgreSQL import (runSqliteMigration; --pglite rehearsal)
  test/                 run.js + *.test.js (mock Live, Network and Media with a real RS256 key)
  docs/capabilities-proposal/  Wave 5 capability manifests (released in openvibe-contracts v0.7.0)
  docs/discord-relay.md  the Discord relay: how it works, owner steps, staff API, limits
ddiff --git a/deploy/systemd/openvibe-community.service b/deploy/systemd/openvibe-community.service
iindex b64077b..b315e08 100644
---- a/deploy/systemd/openvibe-community.service
++++ b/deploy/systemd/openvibe-community.service
@@@ -21,10 +21,8 @@ NoNewPrivileges=true
  PrivateTmp=true
  ProtectSystem=strict
  ProtectHome=true
--# The code tree stays read-only. Community's database is PostgreSQL (ov_community, ADR-035); /var/lib/openvibe-community
--# keeps the pre-PostgreSQL SQLite file (read-only) for the rollback window and the one-time import.
++# The code tree stays read-only. Community's database is PostgreSQL (ov_community, ADR-035).
  StateDirectory=openvibe-community
--Environment=COMMUNITY_DB_PATH=/var/lib/openvibe-community/community.db
  
  [Install]
  WantedBy=multi-user.target
ddiff --git a/package-lock.json b/package-lock.json
iindex d5c5ae9..dca92dc 100644
---- a/package-lock.json
++++ b/package-lock.json
@@@ -9,7 +9,6 @@
        "version": "1.0.0",
        "license": "MIT",
        "dependencies": {
--        "better-sqlite3": "^11.10.0",
          "cookie-parser": "^1.4.7",
          "dotenv": "^16.4.7",
          "express": "^4.21.2",
@@@ -119,7 +118,9 @@
            "url": "https://feross.org/support"
          }
        ],
--      "license": "MIT"
++      "license": "MIT",
++      "optional": true,
++      "peer": true
      },
      "node_modules/better-sqlite3": {
        "version": "11.10.0",
@@@ -127,6 +128,8 @@
        "integrity": "sha512-EwhOpyXiOEL/lKzHz9AW1msWFNzGc/z+LzeB3/jnFJpxu+th2yqvzsSWas1v9jgs9+xiXJcD5A8CJxAG2TaghQ==",
        "hasInstallScript": true,
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "bindings": "^1.5.0",
          "prebuild-install": "^7.1.1"
@@@ -137,6 +140,8 @@
        "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.5.0.tgz",
        "integrity": "sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "file-uri-to-path": "1.0.0"
        }
@@@ -146,6 +151,8 @@
        "resolved": "https://registry.npmjs.org/bl/-/bl-4.1.0.tgz",
        "integrity": "sha512-1W07cM9gS6DcLperZfFSj+bWLtaPGSOHWhPiGzXmvVJbRLdG82sH/Kn8EtW1VqWVA54AKf2h5k5BbnIbwF3h6w==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "buffer": "^5.5.0",
          "inherits": "^2.0.4",
@@@ -195,6 +202,8 @@
          }
        ],
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "base64-js": "^1.3.1",
          "ieee754": "^1.1.13"
@@@ -259,7 +268,9 @@
        "version": "1.1.4",
        "resolved": "https://registry.npmjs.org/chownr/-/chownr-1.1.4.tgz",
        "integrity": "sha512-jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg==",
--      "license": "ISC"
++      "license": "ISC",
++      "optional": true,
++      "peer": true
      },
      "node_modules/cluster-key-slot": {
        "version": "1.1.2",
@@@ -333,6 +344,8 @@
        "resolved": "https://registry.npmjs.org/decompress-response/-/decompress-response-6.0.0.tgz",
        "integrity": "sha512-aW35yZM6Bb/4oJlZncMH2LCoZtJXTRxES17vE3hoRiowU2kWHaJKFkSBDnDR+cm9J+9QhXmREyIfv0pji9ejCQ==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "mimic-response": "^3.1.0"
        },
@@@ -348,6 +361,8 @@
        "resolved": "https://registry.npmjs.org/deep-extend/-/deep-extend-0.6.0.tgz",
        "integrity": "sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "engines": {
          "node": ">=4.0.0"
        }
@@@ -385,6 +400,8 @@
        "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-2.1.2.tgz",
        "integrity": "sha512-Btj2BOOO83o3WyH59e8MgXsxEQVcarkUOpEYrubB0urwnN10yQ364rsiByU11nZlqWYZm05i/of7io4mzihBtQ==",
        "license": "Apache-2.0",
++      "optional": true,
++      "peer": true,
        "engines": {
          "node": ">=8"
        }
@@@ -444,6 +461,8 @@
        "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.5.tgz",
        "integrity": "sha512-ooEGc6HP26xXq/N+GCGOT0JKCLDGrq2bQUZrQ7gyrJiZANJ/8YDTxTpQBXGMn+WbIQXNVpyWymm7KYVICQnyOg==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "once": "^1.4.0"
        }
@@@ -498,6 +517,8 @@
        "resolved": "https://registry.npmjs.org/expand-template/-/expand-template-2.0.3.tgz",
        "integrity": "sha512-XYfuKMvj4O35f/pOXLObndIRvyQ+/+6AhODh+OKWj9S9498pHHn/IMszH+gt0fBCRWMNfk1ZSp5x3AifmnI2vg==",
        "license": "(MIT OR WTFPL)",
++      "optional": true,
++      "peer": true,
        "engines": {
          "node": ">=6"
        }
@@@ -589,7 +610,9 @@
        "version": "1.0.0",
        "resolved": "https://registry.npmjs.org/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz",
        "integrity": "sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw==",
--      "license": "MIT"
++      "license": "MIT",
++      "optional": true,
++      "peer": true
      },
      "node_modules/finalhandler": {
        "version": "1.3.2",
@@@ -631,7 +654,9 @@
        "version": "1.0.0",
        "resolved": "https://registry.npmjs.org/fs-constants/-/fs-constants-1.0.0.tgz",
        "integrity": "sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow==",
--      "license": "MIT"
++      "license": "MIT",
++      "optional": true,
++      "peer": true
      },
      "node_modules/function-bind": {
        "version": "1.1.2",
@@@ -683,7 +708,9 @@
        "version": "0.0.0",
        "resolved": "https://registry.npmjs.org/github-from-package/-/github-from-package-0.0.0.tgz",
        "integrity": "sha512-SyHy3T1v2NUXn29OsWdxmK6RwHD+vkj3v8en8AOBZ1wBQ/hCAQ5bAQTD02kW4W9tUp/3Qh6J8r9EvntiyCmOOw==",
--      "license": "MIT"
++      "license": "MIT",
++      "optional": true,
++      "peer": true
      },
      "node_modules/gopd": {
        "version": "1.2.0",
@@@ -792,7 +819,9 @@
            "url": "https://feross.org/support"
          }
        ],
--      "license": "BSD-3-Clause"
++      "license": "BSD-3-Clause",
++      "optional": true,
++      "peer": true
      },
      "node_modules/inherits": {
        "version": "2.0.4",
@@@ -804,7 +833,9 @@
        "version": "1.3.8",
        "resolved": "https://registry.npmjs.org/ini/-/ini-1.3.8.tgz",
        "integrity": "sha512-JV/yugV2uzW5iMRSiZAyDtQd+nxtUnjeLt0acNdw98kKLrvuRVyB80tsREOE7yvGVgalhZ6RNXCmEHkUKBKxew==",
--      "license": "ISC"
++      "license": "ISC",
++      "optional": true,
++      "peer": true
      },
      "node_modules/iovalkey": {
        "version": "0.4.0",
@@@ -1041,6 +1072,8 @@
        "resolved": "https://registry.npmjs.org/mimic-response/-/mimic-response-3.1.0.tgz",
        "integrity": "sha512-z0yWI+4FDrrweS8Zmt4Ej5HdJmky15+L2e6Wgn3+iK5fWzb6T3fhNFq2+MeTRb064c6Wr4N/wv0DzQTjNzHNGQ==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "engines": {
          "node": ">=10"
        },
@@@ -1053,6 +1086,8 @@
        "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.8.tgz",
        "integrity": "sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "funding": {
          "url": "https://github.com/sponsors/ljharb"
        }
@@@ -1061,7 +1096,9 @@
        "version": "0.5.3",
        "resolved": "https://registry.npmjs.org/mkdirp-classic/-/mkdirp-classic-0.5.3.tgz",
        "integrity": "sha512-gKLcREMhtuZRwRAfqP3RFW+TK4JqApVBtOIftVgjuABpAtpxhPGaDcfvbhNvD0B8iD1oUr/txX35NjcaY6Ns/A==",
--      "license": "MIT"
++      "license": "MIT",
++      "optional": true,
++      "peer": true
      },
      "node_modules/ms": {
        "version": "2.0.0",
@@@ -1091,7 +1128,9 @@
        "version": "2.0.0",
        "resolved": "https://registry.npmjs.org/napi-build-utils/-/napi-build-utils-2.0.0.tgz",
        "integrity": "sha512-GEbrYkbfF7MoNaoh2iGG84Mnf/WZfB0GdGEsM8wz7Expx/LlWf5U8t9nvJKXSp3qr5IsEbK04cBGhol/KwOsWA==",
--      "license": "MIT"
++      "license": "MIT",
++      "optional": true,
++      "peer": true
      },
      "node_modules/negotiator": {
        "version": "0.6.3",
@@@ -1107,6 +1146,8 @@
        "resolved": "https://registry.npmjs.org/node-abi/-/node-abi-3.96.0.tgz",
        "integrity": "sha512-rebQ/lz7i0EkoLzUVSrKRzA69zMkwLp95kKMWoMDkkM00Suxz0D7zEQPwRml5fQum24mj7bPvmlgLAmu2JCiYg==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "semver": "^7.3.5"
        },
@@@ -1143,6 +1184,8 @@
        "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
        "integrity": "sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w==",
        "license": "ISC",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "wrappy": "1"
        }
@@@ -1350,6 +1393,8 @@
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        "deprecated": "No longer maintained. Please contact the author of the relevant native addon; alternatives are available.",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "detect-libc": "^2.0.0",
          "expand-template": "^2.0.3",
@@@ -1393,6 +1438,8 @@
        "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.4.tgz",
        "integrity": "sha512-VS7sjc6KR7e1ukRFhQSY5LM2uBWAUPiOPa/A3mkKmiMwSmRFUITt0xuj+/lesgnCv+dPIEYlkzrcyXgquIHMcA==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "end-of-stream": "^1.1.0",
          "once": "^1.3.1"
@@@ -1443,6 +1490,8 @@
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        "license": "(BSD-2-Clause OR MIT OR Apache-2.0)",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "deep-extend": "^0.6.0",
          "ini": "~1.3.0",
@@@ -1458,6 +1507,8 @@
        "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.2.tgz",
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        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "inherits": "^2.0.3",
          "string_decoder": "^1.1.1",
@@@ -1676,7 +1727,9 @@
            "url": "https://feross.org/support"
          }
        ],
--      "license": "MIT"
++      "license": "MIT",
++      "optional": true,
++      "peer": true
      },
      "node_modules/simple-get": {
        "version": "4.0.1",
@@@ -1697,6 +1750,8 @@
          }
        ],
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "decompress-response": "^6.0.0",
          "once": "^1.3.1",
@@@ -1740,6 +1795,8 @@
        "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
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        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "safe-buffer": "~5.2.0"
        }
@@@ -1749,6 +1806,8 @@
        "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
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        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "engines": {
          "node": ">=0.10.0"
        }
@@@ -1758,6 +1817,8 @@
        "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-2.1.5.tgz",
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        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "chownr": "^1.1.1",
          "mkdirp-classic": "^0.5.2",
@@@ -1770,6 +1831,8 @@
        "resolved": "https://registry.npmjs.org/tar-stream/-/tar-stream-2.2.0.tgz",
        "integrity": "sha512-ujeqbceABgwMZxEJnk2HDY2DlnUZ+9oEcb1KzTVfYHio0UE6dG71n60d8D2I4qNvleWrrXpmjpt7vZeF1LnMZQ==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
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          "bl": "^4.0.3",
          "end-of-stream": "^1.4.1",
@@@ -1795,6 +1858,8 @@
        "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
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        "license": "Apache-2.0",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "safe-buffer": "^5.0.1"
        },
@@@ -1828,7 +1893,9 @@
        "version": "1.0.2",
        "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
        "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==",
--      "license": "MIT"
++      "license": "MIT",
++      "optional": true,
++      "peer": true
      },
      "node_modules/utils-merge": {
        "version": "1.0.1",
@@@ -1852,7 +1919,9 @@
        "version": "1.0.2",
        "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
        "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
--      "license": "ISC"
++      "license": "ISC",
++      "optional": true,
++      "peer": true
      },
      "node_modules/xtend": {
        "version": "4.0.2",
ddiff --git a/package.json b/package.json
iindex 1c9c5d3..20f79d6 100644
---- a/package.json
++++ b/package.json
@@@ -20,7 +20,6 @@
    "author": "OpenVibe Community",
    "license": "MIT",
    "dependencies": {
--    "better-sqlite3": "^11.10.0",
      "cookie-parser": "^1.4.7",
      "dotenv": "^16.4.7",
      "express": "^4.21.2",
ddiff --git a/scripts/migrate-to-postgres.js b/scripts/migrate-to-postgres.js
ddeleted file mode 100755
iindex f9ea512..0000000
---- a/scripts/migrate-to-postgres.js
++++ /dev/null
@@@ -1,26 +0,0 @@
--#!/usr/bin/env node
--'use strict';
--/**
-- * The one-time move of Community's SQLite database (COMMUNITY_DB_PATH) into its PostgreSQL schema (ADR-035; the
-- * procedure is openvibe-sdk docs/migrating-to-postgresql.md, section 6, carried out by openvibe-sdk/db
-- * runSqliteMigration).
-- *
-- *   node scripts/migrate-to-postgres.js [--sqlite <file>] [--pglite] [--json]
-- *
-- * Applies migrations/ as the owner (DATABASE_DIRECT_URL), copies every table into emptied tables, verifies row counts
-- * and checksums, and exits 1 unless everything verified. The SQLite file is opened read-only. Every table keeps its
-- * name and columns.
-- */
--require('dotenv').config();
--const { runSqliteMigration } = require('openvibe-sdk/db');
--const config = require('../server/config');
--const { MIGRATIONS } = require('../server/db');
--
--const TABLES = {};
--
--if (require.main === module) {
--    runSqliteMigration({ service: 'community', sqlite: config.dbPath, directUrl: config.db.directUrl, migrations: MIGRATIONS, tables: TABLES })
--        .then((code) => process.exit(code), (err) => { console.error(`migrate-to-postgres failed: ${err.message}`); process.exit(1); });
--}
--
--module.exports = { TABLES };
ddiff --git a/scripts/n-1-record.js b/scripts/n-1-record.js
iindex de4b851..1290faa 100644
---- a/scripts/n-1-record.js
++++ b/scripts/n-1-record.js
@@@ -1,8 +1,8 @@
  #!/usr/bin/env node
  'use strict';
  /**
-- * Records the N-1 fixtures (roadmap WS-P task 11) from a release: what its client calls and reads,
-- * and what SQL it runs on which schema. test/n-1.test.js replays them against this checkout.
++ * Records the N-1 fixtures (roadmap WS-P task 11) from a release: what its client calls and reads, and
++ * the migrations it ran. test/n-1.test.js replays them against this checkout.
   *
   *   npm run n-1:record                 # from HEAD: run it right after a deploy, from the deployed commit,
   *                                      # so the fixture is N-1 for the next release
@@@ -14,9 +14,7 @@
   * Writes test/fixtures/n-1/client.json and worker.json; commit them.
   */
  const fs = require('fs');
--const os = require('os');
  const path = require('path');
--const Database = require('better-sqlite3');
  const h = require('../test/n-1/harness');
  const svc = require('../test/n-1/service');
  
@@@ -26,12 +24,6 @@ const OUT = path.join(ROOT, 'test', 'fixtures', 'n-1');
  (async () => {
      const ref = process.argv[2] || 'HEAD';
      const wt = h.worktree(ROOT, ref);
--    const tmp = fs.mkdtempSync(path.join(os.tmpdir(), 'ov-n-1-record-'));
--    const dbPath = path.join(tmp, 'db', `${svc.service}.db`);
--    const dataDir = path.join(tmp, 'data');
--    const sqlOut = path.join(tmp, 'sql.json');
--    fs.mkdirSync(path.dirname(dbPath), { recursive: true });
--    fs.mkdirSync(dataDir, { recursive: true });
      let server = null;
      try {
          console.log(`n-1:record: ${svc.service} at ${wt.sha.slice(0, 12)} (${ref})`);
@@@ -43,8 +35,8 @@ const OUT = path.join(ROOT, 'test', 'fixtures', 'n-1');
          console.log(`  client: ${files.length} files, ${calls.length} call sites with a path (${dynamic} with a computed one, not replayed)`);
  
          // 2. The release, seeded and booted; every call replayed.
--        await svc.seed({ dir: wt.dir, dbPath, dataDir });
--        server = await svc.boot({ dir: wt.dir, dbPath, dataDir, sqlOut });
++        await svc.seed({ dir: wt.dir });
++        server = await svc.boot({ dir: wt.dir });
          const manifest = await (await fetch(`${server.url}/release.json`)).json();
          const probe = await h.notFoundProbe(server.url);
          const requests = h.requestsFor(calls, svc.samples, { signedIn: svc.signedIn !== false });
@@@ -98,44 +90,20 @@ const OUT = path.join(ROOT, 'test', 'fixtures', 'n-1');
          await server.close();
          server = null;
  
--        // 3. The schema N-1 left, and the SQL it runs on it. A release on PostgreSQL (ADR-035) records its migration files
--        // instead: N must keep every one of them unchanged and only add (the database's own ledger refuses an edit).
++        // 3. The migrations N-1 ran. N must keep every one of them unchanged and only add (the database's own
++        // ledger refuses an edit).
          const head = { service: svc.service, release: wt.sha, recorded_at: new Date().toISOString(), note: 'N-1 fixture: written by `npm run n-1:record`, replayed by test/n-1.test.js' };
          const clients = svc.clientReleases ? svc.clientReleases() : null;
          const migDir = path.join(wt.dir, 'migrations');
--        if (fs.existsSync(migDir)) {
--            const migrations = fs.readdirSync(migDir).filter((f) => f.endsWith('.sql')).sort()
--                .map((name) => ({ name, sha256: require('crypto').createHash('sha256').update(fs.readFileSync(path.join(migDir, name))).digest('hex') }));
--            fs.mkdirSync(OUT, { recursive: true });
--            fs.writeFileSync(path.join(OUT, 'client.json'), `${JSON.stringify({ ...head, ...(clients ? { clients } : {}), manifest, dynamic_calls: dynamic, calls: recorded, ...(ws ? { ws } : {}) }, null, 1)}\n`);
--            fs.writeFileSync(path.join(OUT, 'worker.json'), `${JSON.stringify({ ...head, engine: 'postgresql', migrations, statements: [] }, null, 1)}\n`);
--            console.log(`  postgresql: ${migrations.length} migration file(s); wrote ${path.relative(ROOT, OUT)}/client.json and worker.json`);
--            return;
--        }
--        const db = new Database(dbPath);
--        const schema = h.schemaDDL(db);
--        const ledger = {};
--        for (const t of svc.ledgerTables || []) {
--            try { ledger[t] = db.prepare(`SELECT * FROM "${t}"`).all(); } catch { /* not there */ }
--        }
--        const userVersion = db.pragma('user_version', { simple: true });
--        const serverFiles = h.readTree(wt.dir, svc.sqlDirs);
--        // What N-1 creates itself on first use or at a full boot: in production it exists before N deploys.
--        const lazy = h.lazyDDL(serverFiles, db);
--        const ran = fs.existsSync(sqlOut) ? JSON.parse(fs.readFileSync(sqlOut, 'utf8')) : [];
--        const candidates = [...new Set([...ran.map(h.normalizeSql).filter((s) => /^\s*(SELECT|INSERT|UPDATE|DELETE|REPLACE|WITH)\b/i.test(s)), ...h.sqlLiterals(serverFiles)])].sort();
--        const failing = new Set(h.prepareProblems(db, candidates).map((p) => p.sql));
--        const statements = candidates.filter((s) => !failing.has(s));
--        db.close();
--        console.log(`  sql: ${statements.length} statements (${ran.length} ran, ${failing.size} candidates that do not prepare on N-1's own schema left out), ${schema.length} schema objects, ${lazy.length} created on first use`);
--
++        if (!fs.existsSync(migDir)) throw new Error(`${svc.service} at ${wt.sha.slice(0, 12)} has no migrations directory: it predates PostgreSQL`);
++        const migrations = fs.readdirSync(migDir).filter((f) => f.endsWith('.sql')).sort()
++            .map((name) => ({ name, sha256: require('crypto').createHash('sha256').update(fs.readFileSync(path.join(migDir, name))).digest('hex') }));
          fs.mkdirSync(OUT, { recursive: true });
          fs.writeFileSync(path.join(OUT, 'client.json'), `${JSON.stringify({ ...head, ...(clients ? { clients } : {}), manifest, dynamic_calls: dynamic, calls: recorded, ...(ws ? { ws } : {}) }, null, 1)}\n`);
--        fs.writeFileSync(path.join(OUT, 'worker.json'), `${JSON.stringify({ ...head, user_version: userVersion, schema, ledger, lazy, statements }, null, 1)}\n`);
--        console.log(`  wrote ${path.relative(ROOT, OUT)}/client.json and worker.json`);
++        fs.writeFileSync(path.join(OUT, 'worker.json'), `${JSON.stringify({ ...head, engine: 'postgresql', migrations }, null, 1)}\n`);
++        console.log(`  postgresql: ${migrations.length} migration file(s); wrote ${path.relative(ROOT, OUT)}/client.json and worker.json`);
      } finally {
          if (server) await server.close();
          wt.remove();
--        fs.rmSync(tmp, { recursive: true, force: true });
      }
  })().catch((err) => { console.error(err.stack || err.message); process.exit(1); });
ddiff --git a/server/config.js b/server/config.js
iindex 2755d58..b5c20c0 100644
---- a/server/config.js
++++ b/server/config.js
@@@ -66,8 +66,6 @@ module.exports = {
      db: { url: process.env.DATABASE_URL || '', directUrl: process.env.DATABASE_DIRECT_URL || '' },
      // Valkey (ADR-035): per-actor limit counters shared across processes; without it they count in this process.
      valkey: { url: process.env.VALKEY_URL || '', prefix: process.env.VALKEY_PREFIX || 'ov:community:' },
--    // The SQLite file of releases before PostgreSQL: read once by scripts/migrate-to-postgres.js.
--    dbPath: process.env.COMMUNITY_DB_PATH || './data/community.db',
  
      // Browser origins allowed to call the embeddable APIs (/api/v1/comments, /api/v1/pulse)
      // with a Bearer Network JWT. No cookies cross origins.
ddiff --git a/server/db.js b/server/db.js
iindex 8b5aca0..0bb1a54 100644
---- a/server/db.js
++++ b/server/db.js
@@@ -9,8 +9,8 @@
   * (usr_… / gst_…), never by a service-local integer; subject_projection is only a display cache
   * of what the Network says about them.
   *
-- * Timestamps stay SQLite's text ('YYYY-MM-DD HH:MM:SS', UTC): the migration defines ov_now(), datetime() and
-- * julianday() with SQLite's behaviour, and ov_hot() for the forum's hot rank.
++ * Timestamps are text ('YYYY-MM-DD HH:MM:SS', UTC): the schema defines ov_now(), datetime() and julianday()
++ * with those semantics, and ov_hot() for the forum's hot rank.
   */
  const crypto = require('crypto');
  const fs = require('fs');
ddiff --git a/server/forum/store.js b/server/forum/store.js
iindex 4cede0a..ab698ad 100644
---- a/server/forum/store.js
++++ b/server/forum/store.js
@@@ -229,7 +229,7 @@ async function softDeleteThread(db, id) {
      return (await db.prepare('UPDATE threads SET deleted_at = ov_now() WHERE id = ? AND deleted_at IS NULL').run(id)).changes;
  }
  
--/** Threads a subject opened since `sinceSql` (SQLite modifier, e.g. '-1 day'); deleted ones count. */
++/** Threads a subject opened since `sinceSql` (a datetime modifier, e.g. '-1 day'); deleted ones count. */
  async function countThreadsSince(db, subject, sinceSql) {
      return (await db.prepare("SELECT COUNT(*) AS c FROM threads WHERE author_subject = ? AND created_at > datetime('now', ?)").get(subject, sinceSql)).c;
  }
ddiff --git a/server/http/v1.js b/server/http/v1.js
iindex 9adb40c..1982c53 100644
---- a/server/http/v1.js
++++ b/server/http/v1.js
@@@ -100,7 +100,7 @@ function cors(origins) {
  
  const intIn = (v, def, min, max) => Math.min(Math.max(parseInt(v, 10) || def, min), max);
  
--/** SQLite 'YYYY-MM-DD HH:MM:SS' (UTC) ↔ ISO. */
++/** Text timestamps 'YYYY-MM-DD HH:MM:SS' (UTC) ↔ ISO. */
  function sqlTime(date = new Date()) { return new Date(date).toISOString().replace('T', ' ').slice(0, 19); }
  function isoTime(v) {
      if (!v) return null;
ddiff --git a/server/index.js b/server/index.js
iindex 3aa4e1b..ca7f033 100644
---- a/server/index.js
++++ b/server/index.js
@@@ -26,7 +26,7 @@ const { createApp } = require('./app');
      const server = app.listen(config.port, config.host, () => {
          console.log(`[Community] ${config.nodeEnv} on http://${config.host}:${config.port} → ${config.baseUrl}`);
          console.log(config.pastesAuthority === 'community'
--            ? `[Community] pastes: this site is the authority (${config.dbPath}), identity via ${config.networkUrl}`
++            ? `[Community] pastes: this site is the authority (PostgreSQL), identity via ${config.networkUrl}`
              : `[Community] pastes via ${config.liveInternalUrl}/api/pastes, identity via ${config.networkUrl}`);
      });
      server.keepAliveTimeout = 65_000;
ddiff --git a/server/observability.js b/server/observability.js
iindex bfecf9b..fbdfff8 100644
---- a/server/observability.js
++++ b/server/observability.js
@@@ -2,7 +2,7 @@
  /**
   * Track O: truthful readiness for GET /api/ready (openvibe-shared/ready).
   *
-- *   db              required  a real query on Community's SQLite (the schema is there and answers)
++ *   db              required  a real query on Community's PostgreSQL database (the schema is there and answers)
   *   network_jwks    optional  the Network signing key has loaded. Without it public pages and reads
   *                             still work, but nobody can sign in or write as a signed-in viewer or
   *                             service (those answer 503), so it degrades rather than fails
ddiff --git a/server/pastes/store.js b/server/pastes/store.js
iindex e3bfabb..6a9d9f4 100644
---- a/server/pastes/store.js
++++ b/server/pastes/store.js
@@@ -235,7 +235,7 @@ async function listPastes(db, opts = {}) {
      return { rows, total };
  }
  
--/** Pastes created by a subject since `sinceSql` (an SQLite datetime modifier, e.g. '-1 day'). */
++/** Pastes created by a subject since `sinceSql` (a datetime modifier, e.g. '-1 day'). */
  async function countOwnerSince(db, subject, sinceSql) {
      return (await db.prepare("SELECT COUNT(*) AS c FROM pastes WHERE owner_subject = ? AND created_at > datetime('now', ?)").get(subject, sinceSql)).c;
  }
ddiff --git a/server/votes.js b/server/votes.js
iindex 300e3ab..4abe9eb 100644
---- a/server/votes.js
++++ b/server/votes.js
@@@ -6,8 +6,8 @@
   * Race safety: a vote is a single UPSERT (or DELETE for 0) followed, in the same transaction, by
   * recomputing the target's score from the vote rows. The score is never incremented or decremented,
   * so interleaved votes from any number of connections or processes cannot drift it. The transaction
-- * first locks the target row (SELECT … FOR UPDATE, PostgreSQL's stand-in for SQLite's IMMEDIATE), so
-- * votes on one target queue and each recount sees every vote committed before it.
++ * first locks the target row (SELECT … FOR UPDATE), so votes on one target queue and each recount
++ * sees every vote committed before it.
   */
  const TARGETS = {
      comment: { votes: 'comment_votes', key: 'comment_id', table: 'comments', counts: true },
ddiff --git a/test/fixtures/n-1/worker.json b/test/fixtures/n-1/worker.json
iindex 7e7c32f..6d401d4 100644
---- a/test/fixtures/n-1/worker.json
++++ b/test/fixtures/n-1/worker.json
@@@ -9,6 +9,5 @@
     "name": "0001_initial.sql",
     "sha256": "508d5c4bdc753ad04bd17ed252dc5e8301fe6853d26bab6dcd41bd906dfc4629"
    }
-- ],
-- "statements": []
++ ]
  }
ddiff --git a/test/n-1.test.js b/test/n-1.test.js
iindex d832300..1a3332a 100644
---- a/test/n-1.test.js
++++ b/test/n-1.test.js
@@@ -1,8 +1,7 @@
  'use strict';
  /**
   * N-1 (roadmap WS-P task 11, ADR-016): during a deploy, and for the 24-hour mixed-version window after
-- * it, open tabs run the previous release's client against this release's server, and a previous-release
-- * process can still be working on the database this release migrated. Both must keep working.
++ * it, open tabs run the previous release's client against this release's server. Both must keep working.
   *
   *   - An N-1 client against the N server: test/fixtures/n-1/client.json is every call the previous
   *     release's client code makes (found statically, made concrete with seeded values) with what that
@@@ -11,11 +10,9 @@
   *     for a 2xx, the same status otherwise (a 5xx only needs the route), JSON where there was JSON,
   *     every read field still there with a type it had. The run sits inside openvibe-shared's
   *     mixed-version matrix (release-compat assertMixedVersion) with both releases' manifests.
-- *   - N-1 SQL against the N schema: test/fixtures/n-1/worker.json holds the previous release's schema
-- *     (and migration ledger, and what it creates on first use) and every statement it ran or has as a
-- *     literal. The database this test boots on is created from that schema, so this release's
-- *     migrations run over it; afterwards every N-1 statement must still prepare (no table or column it
-- *     names is gone), and no N-1 INSERT may miss a column this release made NOT NULL without a default.
++ *   - N-1 migrations on the N schema: test/fixtures/n-1/worker.json holds the migration files the
++ *     previous release ran. This release must keep every one of them byte for byte and only add
++ *     (expand first, ADR-028).
   *
   * The fixtures come from the release in production: `npm run n-1:record` after each deploy (see
   * scripts/n-1-record.js). This test needs no git history and no network.
@@@ -24,9 +21,7 @@
   */
  const assert = require('assert');
  const fs = require('fs');
--const os = require('os');
  const path = require('path');
--const Database = require('better-sqlite3');
  const compat = require('openvibe-shared/release-compat');
  const h = require('./n-1/harness');
  const svc = require('./n-1/service');
@@@ -43,7 +38,7 @@ async function check(name, fn) {
  
  (async () => {
      const age = Math.round((Date.now() - Date.parse(client.recorded_at)) / 86400000);
--    console.log(`n-1: ${svc.service} N-1 = ${client.release.slice(0, 12)}, recorded ${client.recorded_at.slice(0, 10)} (${age} d ago); ${client.calls.length} calls, ${worker.statements.length} statements`);
++    console.log(`n-1: ${svc.service} N-1 = ${client.release.slice(0, 12)}, recorded ${client.recorded_at.slice(0, 10)} (${age} d ago); ${client.calls.length} calls, ${worker.migrations.length} migration file(s)`);
  
      console.log('n-1: the harness');
      await check('finds call sites, their method and template, and skips computed paths', () => {
@@@ -63,57 +58,17 @@ async function check(name, fn) {
          assert.deepStrictEqual(h.readProblems(reads, { streams: [{ title: 'b', viewer_count: '2' }] }), ['streams[].viewer_count was number, now string', 'total is gone']);
          assert.ok(h.statusCompatible(200, 201) && h.statusCompatible(502, 503) && !h.statusCompatible(401, 403) && !h.statusCompatible(502, 404) && !h.statusCompatible(200, 404));
      });
--    await check('SQL: a dropped column fails the prepare; a new NOT NULL column without a default fails an old INSERT', () => {
--        const d = new Database(':memory:');
--        d.exec('CREATE TABLE t (id INTEGER PRIMARY KEY, a TEXT, b TEXT NOT NULL, c TEXT NOT NULL DEFAULT \'x\')');
--        assert.deepStrictEqual(h.prepareProblems(d, ['SELECT a, gone FROM t']).map((p) => p.error), ['no such column: gone']);
--        assert.deepStrictEqual(h.insertProblems(d, ['INSERT INTO t (a, b) VALUES (?, ?)', 'INSERT INTO t (a) VALUES (?)']).map((p) => p.error), ['t.b is NOT NULL without a default, and N-1 does not set it']);
--        d.close();
--    });
  
--    const tmp = fs.mkdtempSync(path.join(os.tmpdir(), 'ov-n-1-test-'));
--    const dbPath = path.join(tmp, 'db', `${svc.service}.db`);
--    const dataDir = path.join(tmp, 'data');
--    fs.mkdirSync(path.dirname(dbPath), { recursive: true });
--    fs.mkdirSync(dataDir, { recursive: true });
      let server = null;
--    // This release on PostgreSQL (ADR-035) and N-1 on SQLite: they never share a database (the switch stops the
--    // service, imports, then starts this release), so N-1's SQL has no schema of this release to run on. The client
--    // half still runs, against a fresh migrated database.
--    const pg = !!require('../server/db').initDb;
--    const sqlSkip = pg && worker.engine !== 'postgresql' ? 'N-1 SQL: skipped (N-1 runs on SQLite and this release on PostgreSQL: no shared database, so no N-1 statement runs on this schema; scripts/migrate-to-postgres.js moves the data and was rehearsed)' : null;
--    // Both on PostgreSQL: N keeps every migration N-1 ran, byte for byte, and only adds (expand first, ADR-028).
--    if (pg && worker.engine === 'postgresql') {
--        await check(`N-1's ${worker.migrations.length} migration file(s) are all here, unchanged`, () => {
--            const dir = path.join(ROOT, 'migrations');
--            const hash = (f) => require('crypto').createHash('sha256').update(fs.readFileSync(path.join(dir, f))).digest('hex');
--            const bad = worker.migrations.filter((m) => !fs.existsSync(path.join(dir, m.name)) || hash(m.name) !== m.sha256).map((m) => m.name);
--            assert.deepStrictEqual(bad, [], 'a migration N-1 ran was removed or edited: write a new one instead');
--        });
--    }
++    // N keeps every migration N-1 ran, byte for byte, and only adds (expand first, ADR-028).
++    await check(`N-1's ${worker.migrations.length} migration file(s) are all here, unchanged`, () => {
++        const dir = path.join(ROOT, 'migrations');
++        const hash = (f) => require('crypto').createHash('sha256').update(fs.readFileSync(path.join(dir, f))).digest('hex');
++        const bad = worker.migrations.filter((m) => !fs.existsSync(path.join(dir, m.name)) || hash(m.name) !== m.sha256).map((m) => m.name);
++        assert.deepStrictEqual(bad, [], 'a migration N-1 ran was removed or edited: write a new one instead');
++    });
      try {
--        if (pg) {
--            server = await svc.boot({ dir: ROOT, dbPath, dataDir });
--        } else {
--        console.log(`n-1: this release on a database N-1 created`);
--        await check('N-1\'s schema, ledger and first-use tables load, and this release migrates and seeds it', () => {
--            const d = new Database(dbPath);
--            d.transaction(() => {
--                for (const ddl of worker.schema) d.exec(ddl);
--                for (const [table, rows] of Object.entries(worker.ledger || {})) {
--                    for (const row of rows) {
--                        const cols = Object.keys(row);
--                        d.prepare(`INSERT INTO "${table}" (${cols.map((c) => `"${c}"`).join(', ')}) VALUES (${cols.map(() => '?').join(', ')})`).run(...cols.map((c) => row[c]));
--                    }
--                }
--                for (const ddl of worker.lazy || []) d.exec(ddl);
--            })();
--            d.pragma(`user_version = ${Number(worker.user_version) || 0}`);
--            d.close();
--            svc.seed({ dir: ROOT, dbPath, dataDir });
--        });
--        server = await svc.boot({ dir: ROOT, dbPath, dataDir });
--        }
++        server = await svc.boot({ dir: ROOT });
          const manifest = await (await fetch(`${server.url}/release.json`)).json();
  
          console.log('n-1: the N-1 client against this server');
@@@ -141,20 +96,8 @@ async function check(name, fn) {
          });
          await server.close();
          server = null;
--
--        if (sqlSkip) console.log(sqlSkip);
--        else if (!pg) {
--        console.log('n-1: N-1\'s SQL on the schema this release migrated');
--        await check(`every statement N-1 runs still prepares (${worker.statements.length}), and none of its INSERTs misses a new required column`, () => {
--            const d = new Database(dbPath, { readonly: true });
--            const problems = [...h.prepareProblems(d, worker.statements), ...h.insertProblems(d, worker.statements)];
--            d.close();
--            assert.deepStrictEqual(problems.map((p) => `${p.error}: ${p.sql.slice(0, 160)}`), [], 'N-1 SQL that breaks on this schema (expand first, contract a release later: ADR-028)');
--        });
--        }
      } finally {
          if (server) { console.log(server.log().slice(-1500)); await server.close(); }
--        fs.rmSync(tmp, { recursive: true, force: true });
      }
  
      if (failures) { console.log(`\nn-1: ${failures} check(s) failed`); process.exit(1); }
ddiff --git a/test/n-1/boot-child.js b/test/n-1/boot-child.js
iindex c0d0e19..01fe8da 100644
---- a/test/n-1/boot-child.js
++++ b/test/n-1/boot-child.js
@@@ -2,7 +2,7 @@
  /**
   * Runs inside a Community release (its directory is the cwd): starts that release's own Live, Network
   * and Media mocks (test/helpers/mock-*.js), then the app as production runs it (pastes authority
-- * community, the shared database at COMMUNITY_DB_PATH = N1_DB), seeds a thread, a paste and a comment
++ * community, a migrated PostgreSQL test database of its own), seeds a thread, a paste and a comment
   * through the API, and prints one line `{"n1": { url, token, ids }}`. SIGTERM stops it.
   */
  const http = require('http');
@@@ -32,16 +32,16 @@ const path = require('path');
          TRUST_PROXY: '1',
          OV_MEDIA_INTERNAL_URL: mediaSrv.url,
          PASTES_AUTHORITY: 'community',
--        COMMUNITY_DB_PATH: process.env.N1_DB,
      });
      const { createApp } = require(path.join(dir, 'server', 'app'));
--    // A release on PostgreSQL (ADR-035; server/db.js initDb) gets a migrated test database of its own; a SQLite
--    // release opens COMMUNITY_DB_PATH itself.
++    // Every release this test boots is on PostgreSQL (ADR-035; server/db.js initDb): give it a migrated
++    // test database of its own.
      const dbMod = require(path.join(dir, 'server', 'db'));
--    const pgDb = dbMod.initDb ? await require(path.join(dir, 'test', 'helpers', 'db')).testDb() : null;
--    if (pgDb) dbMod.setDb(pgDb);
++    const pgDb = await require(path.join(dir, 'test', 'helpers', 'db')).testDb();
++    dbMod.setDb(pgDb);
      const app = await createApp({
--        ...(pgDb ? { db: pgDb, valkey: null } : {}),
++        db: pgDb,
++        valkey: null,
          pasteLimits: { cooldownSeconds: 0 },
          forumLimits: { threads: { cooldownSec: 0, perMinute: 1000 }, posts: { cooldownSec: 0, perMinute: 1000 }, threadsPerDay: 1000 },
          commentLimits: { comments: { cooldownSec: 0, perMinute: 1000 } },
@@@ -64,6 +64,6 @@ const path = require('path');
      const commentThread = (await call('/api/v1/comments/threads/resolve', { method: 'POST', json: { ref } })).thread;
      if (commentThread) await call(`/api/v1/comments/threads/${commentThread.id}/comments`, { method: 'POST', json: { body: 'A comment from N-1' } });
  
--    process.on('SIGTERM', async () => { server.close(); try { if (pgDb) await pgDb.close(); else require(path.join(dir, 'server', 'db')).closeDb(); } catch { /* */ } process.exit(0); });
++    process.on('SIGTERM', async () => { server.close(); try { await pgDb.close(); } catch { /* */ } process.exit(0); });
      process.stdout.write(`${JSON.stringify({ n1: { url, token, ids: { thread: thread && thread.id, thread_slug: thread && thread.slug, paste: paste && paste.slug, comment_thread: commentThread && commentThread.id, comment_access: commentThread && (commentThread.access_id || commentThread.id) } } })}\n`);
  })().catch((err) => { process.stderr.write(`${err.stack || err.message}\n`); process.exit(1); });
ddiff --git a/test/n-1/harness.js b/test/n-1/harness.js
iindex 1fdd969..ea9b899 100644
---- a/test/n-1/harness.js
++++ b/test/n-1/harness.js
@@@ -1,15 +1,14 @@
  'use strict';
  /**
   * N-1 harness (roadmap WS-P task 11, ADR-016's mixed-version window): the previous release's client
-- * against this release's server, and the previous release's SQL against this release's schema.
-- * The same file in Live, Chat, Media and Community; each repository's test/n-1/service.js says what
-- * its clients are, how to boot and seed it, and where its SQL lives.
++ * against this release's server. The same file in Live, Chat, Media and Community; each repository's
++ * test/n-1/service.js says what its clients are and how a release boots and seeds.
   *
   *   scripts/n-1-record.js <ref>   at release time: checks out <ref> (the release in production, which
   *                                 is N-1 for the next deploy) into a temporary worktree, boots it, and
   *                                 writes test/fixtures/n-1/{client,worker}.json
-- *   test/n-1.test.js              in npm test and CI: boots this checkout on a database created with
-- *                                 N-1's schema and replays the fixture; no git history, no network
++ *   test/n-1.test.js              in npm test and CI: boots this checkout, replays the client fixture
++ *                                 and checks the migrations N-1 ran; no git history, no network
   *
   * Client calls are found statically in the N-1 client code (the call sites of `api(...)`, `fetch(...)`
   * and the service's other wrappers, with a literal or template path), made concrete with sample values,
@@@ -17,9 +16,6 @@
   * fixture keeps per call is what an old client depends on: the status, whether the answer is JSON,
   * and the response fields it reads (the JSON key paths whose every key the N-1 client code names, with
   * their types).
-- *
-- * SQL is every statement N-1 prepared while it served those calls, plus every literal SQL string in its
-- * server code that prepares on its own schema. The N-1 schema is its sqlite_master after the replay.
   */
  const fs = require('fs');
  const os = require('os');
@@@ -668,87 +664,6 @@ function wsProblems(recorded, received) {
      return problems;
  }
  
--// ── SQL ──────────────────────────────────────────────────────
--
--const SQL_START = /^\s*(SELECT|INSERT|UPDATE|DELETE|REPLACE|WITH)\b/i;
--
--/** Every plain JS string literal in the files (a template only without ${}), comments skipped. */
--function stringLiterals(files) {
--    const out = [];
--    for (const { text } of files) {
--        for (let i = 0; i < text.length; i++) {
--            const c = text[i];
--            if (c === '/' && text[i + 1] === '/') { const nl = text.indexOf('\n', i); i = nl < 0 ? text.length : nl; continue; }
--            if (c === '/' && text[i + 1] === '*') { const e = text.indexOf('*/', i + 2); i = e < 0 ? text.length : e + 1; continue; }
--            if (c !== '\'' && c !== '"' && c !== '`') continue;
--            const lit = readLiteral(text, i);
--            if (!lit) continue;
--            i = lit.end - 1;
--            if (lit.parts.length === 1 && lit.parts[0].text != null) out.push(lit.parts[0].text);
--        }
--    }
--    return out;
--}
--
--/** The literals that read like one SQL statement (DML). */
--function sqlLiterals(files) {
--    const out = new Set();
--    for (const t of stringLiterals(files)) {
--        const sql = normalizeSql(t);
--        if (SQL_START.test(sql) && /\b(FROM|INTO|SET|VALUES)\b/i.test(sql)) out.add(sql);
--    }
--    return [...out];
--}
--
--/** SQL without its comments (-- to the end of a line, and block comments), outside quoted text. */
--function stripSqlComments(sql) {
--    let out = '';
--    const s = String(sql);
--    for (let i = 0; i < s.length; i++) {
--        const c = s[i];
--        if (c === '\'' || c === '"') {
--            const j = s.indexOf(c, i + 1);
--            const end = j < 0 ? s.length : j + 1;
--            out += s.slice(i, end); i = end - 1; continue;
--        }
--        if (c === '-' && s[i + 1] === '-') { const nl = s.indexOf('\n', i); i = nl < 0 ? s.length : nl - 1; continue; }
--        if (c === '/' && s[i + 1] === '*') { const e = s.indexOf('*/', i + 2); i = e < 0 ? s.length : e + 1; out += ' '; continue; }
--        out += c;
--    }
--    return out;
--}
--
--function normalizeSql(sql) {
--    return stripSqlComments(sql).replace(/\s+/g, ' ').trim();
--}
--
--/**
-- * The DDL N-1 runs itself when it first needs a table or column (a module's CREATE TABLE IF NOT EXISTS,
-- * a boot-time ALTER TABLE … ADD COLUMN) that `db` does not have yet. Each statement is applied to `db`
-- * as it is found to apply; → the applied statements, tables first, in order.
-- */
--function lazyDDL(files, db) {
--    const tables = () => new Set(db.prepare("SELECT name FROM sqlite_master WHERE type = 'table'").all().map((r) => r.name));
--    const columns = (t) => { try { return new Set(db.prepare(`PRAGMA table_xinfo("${t}")`).all().map((c) => c.name.toLowerCase())); } catch { return new Set(); } };
--    const lits = stringLiterals(files).map(stripSqlComments);
--    const applied = [];
--    const apply = (ddl) => { try { db.exec(ddl); applied.push(ddl); return true; } catch { return false; } };
--    for (const text of lits) {
--        for (const m of text.matchAll(/CREATE\s+TABLE\s+IF\s+NOT\s+EXISTS\s+["`]?(\w+)["`]?\s*\(/gi)) {
--            // A rebuild's scratch table (x_new) is the migration's own business, not a table N-1 uses.
--            if (tables().has(m[1]) || /_(new|old|tmp|backup)$/i.test(m[1])) continue;
--            const end = skipBalanced(text, m.index + m[0].length - 1, '(', ')');
--            if (end >= 0) apply(normalizeSql(text.slice(m.index, end + 1)));
--        }
--    }
--    for (const text of lits) {
--        const m = /^\s*ALTER\s+TABLE\s+["`]?(\w+)["`]?\s+ADD\s+(?:COLUMN\s+)?["`]?(\w+)["`]?[^;]*$/i.exec(text.trim().replace(/;$/, ''));
--        if (!m || !tables().has(m[1]) || columns(m[1]).has(m[2].toLowerCase())) continue;
--        apply(normalizeSql(text).replace(/;$/, ''));
--    }
--    return applied;
--}
--
  /** Every file under dir with one of the extensions, as { name (relative to root), text }. */
  function readTree(root, dirs, exts = ['.js']) {
      const out = [];
@@@ -768,50 +683,6 @@ function readTree(root, dirs, exts = ['.js']) {
      return out.sort((a, b) => (a.name < b.name ? -1 : 1));
  }
  
--/** The schema as DDL, tables first (no internal or FTS shadow tables), then indexes, triggers and views. */
--function schemaDDL(db) {
--    const shadow = new Set(db.prepare('PRAGMA table_list').all().filter((t) => t.type === 'shadow').map((t) => t.name));
--    const rows = db.prepare("SELECT type, name, sql FROM sqlite_master WHERE sql IS NOT NULL AND name NOT LIKE 'sqlite_%'").all()
--        .filter((r) => !shadow.has(r.name));
--    const order = { table: 0, index: 1, view: 2, trigger: 3 };
--    return rows.sort((a, b) => order[a.type] - order[b.type] || (a.name < b.name ? -1 : 1)).map((r) => r.sql);
--}
--
--/** Prepares every statement on db (a missing table or column fails the prepare). → [{ sql, error }] */
--function prepareProblems(db, statements) {
--    const problems = [];
--    for (const sql of statements) {
--        try { db.prepare(sql); } catch (e) { problems.push({ sql, error: e.message }); }
--    }
--    return problems;
--}
--
--/**
-- * INSERTs of N-1 that N would refuse: a column N made NOT NULL without a default that the INSERT does
-- * not name. → [{ sql, error }]
-- */
--function insertProblems(db, statements) {
--    const problems = [];
--    const cols = new Map();
--    const required = (table) => {
--        if (!cols.has(table)) {
--            let info = [];
--            try { info = db.prepare(`PRAGMA table_xinfo("${table.replace(/"/g, '""')}")`).all(); } catch { info = []; }
--            const pkInt = info.filter((c) => c.pk).length === 1 && info.find((c) => c.pk && /^INTEGER$/i.test(c.type));
--            cols.set(table, info.filter((c) => c.notnull && c.dflt_value == null && !c.hidden && !(pkInt && c.pk)).map((c) => c.name));
--        }
--        return cols.get(table);
--    };
--    for (const sql of statements) {
--        const m = /^\s*(?:INSERT|REPLACE)(?:\s+OR\s+\w+)?\s+INTO\s+["`]?(\w+)["`]?\s*\(([^)]*)\)\s*(VALUES|SELECT)/i.exec(sql);
--        if (!m) continue;
--        const named = new Set(m[2].split(',').map((c) => c.trim().replace(/^["`]|["`]$/g, '').toLowerCase()));
--        const missing = required(m[1]).filter((c) => !named.has(c.toLowerCase()));
--        if (missing.length) problems.push({ sql, error: `${m[1]}.${missing.join(', ')} is NOT NULL without a default, and N-1 does not set it` });
--    }
--    return problems;
--}
--
  // ── Git ──────────────────────────────────────────────────────
  
  /** A detached worktree of `ref` in a temp directory sharing root's node_modules → { dir, sha, remove() }. */
@@@ -850,6 +721,6 @@ module.exports = {
      flatten, readsOf, readProblems, statusCompatible,
      send, requestsFor, notFoundProbe, isNoRoute, callProblems,
      wsSends, wsHandled, wsSession, wsMessages, wsReads, wsProblems,
--    stringLiterals, sqlLiterals, stripSqlComments, normalizeSql, lazyDDL, readTree, schemaDDL, prepareProblems, insertProblems,
++    readTree,
      worktree, gitFiles, summarize,
  };
ddiff --git a/test/n-1/preload.js b/test/n-1/preload.js
ddeleted file mode 100644
iindex 2644e01..0000000
---- a/test/n-1/preload.js
++++ /dev/null
@@@ -1,23 +0,0 @@
--'use strict';
--/**
-- * Loaded with `node -r` into a release booted by test/n-1/service.js (N-1 at record time, N in the
-- * test), from that release's directory. With N1_SQL_OUT set, every SQL text the process prepares or
-- * executes on the community database (COMMUNITY_DB_PATH, read when the statement runs) is written
-- * there as JSON when it exits.
-- */
--const fs = require('fs');
--const path = require('path');
--
--const out = process.env.N1_SQL_OUT;
--if (out) {
--    const Database = require(path.join(process.cwd(), 'node_modules', 'better-sqlite3'));
--    const seen = new Set();
--    const note = (db, sql) => {
--        try { if (process.env.COMMUNITY_DB_PATH && path.resolve(db.name) === path.resolve(process.env.COMMUNITY_DB_PATH)) seen.add(String(sql)); } catch { /* */ }
--    };
--    const prepare = Database.prototype.prepare;
--    Database.prototype.prepare = function (sql, ...rest) { note(this, sql); return prepare.call(this, sql, ...rest); };
--    const exec = Database.prototype.exec;
--    Database.prototype.exec = function (sql, ...rest) { note(this, sql); return exec.call(this, sql, ...rest); };
--    process.on('exit', () => { try { fs.writeFileSync(out, JSON.stringify([...seen])); } catch { /* */ } });
--}
ddiff --git a/test/n-1/service.js b/test/n-1/service.js
iindex 35a1ca7..86699a8 100644
---- a/test/n-1/service.js
++++ b/test/n-1/service.js
@@@ -1,22 +1,21 @@
  'use strict';
  /**
   * Community's side of the N-1 harness (test/n-1/harness.js): its clients, how a release boots and is
-- * seeded, where its SQL lives. Used by scripts/n-1-record.js (on N-1, in a temporary worktree) and by
-- * test/n-1.test.js (on this checkout), so both boot and seed the same way.
++ * seeded. Used by scripts/n-1-record.js (on N-1, in a temporary worktree) and by test/n-1.test.js (on
++ * this checkout), so both boot and seed the same way.
   *
   * Community's clients are its pages: public/js/community.js, the forms and scripts the templates in
   * server/render write (an open tab posts the form it was served), the links, scripts and forms of the
   * pages N-1 served (crawled), and the openvibe-sdk community client (pastes) as that release installed it.
   *
   * A release boots in a child process (test/n-1/boot-child.js) with its own Live, Network and Media
-- * mocks, the pastes authority on, and its database at COMMUNITY_DB_PATH; sign-in is the ov_token
-- * cookie the Network mock signs.
++ * mocks, the pastes authority on, and a migrated PostgreSQL test database of its own; sign-in is the
++ * ov_token cookie the Network mock signs.
   */
  const path = require('path');
  const { spawn } = require('child_process');
  const { readTree } = require('./harness');
  
--const PRELOAD = path.join(__dirname, 'preload.js');
  const CHILD = path.join(__dirname, 'boot-child.js');
  
  function baseEnv(extra) {
@@@ -50,17 +49,14 @@ module.exports = {
          [/id\)*$/i, '1'],
      ],
  
--    sqlDirs: ['server'],
--    ledgerTables: [],
--
      /** Community migrates when it opens its database (server/db.js openDb); nothing to do first. */
      seed() {},
  
--    /** Boots the release in `dir` on dbPath → { url, ids, headers(auth), close() }. */
--    async boot({ dir, dbPath, sqlOut = '' }) {
--        const child = spawn(process.execPath, ['-r', PRELOAD, CHILD], {
++    /** Boots the release in `dir` on a migrated PostgreSQL test database → { url, ids, headers(auth), close() }. */
++    async boot({ dir }) {
++        const child = spawn(process.execPath, [CHILD], {
              cwd: dir,
--            env: baseEnv({ N1_DB: dbPath, N1_SQL_OUT: sqlOut }),
++            env: baseEnv({}),
              stdio: ['ignore', 'pipe', 'pipe'],
          });
          let log = '';
ddiff --git a/test/perf-budget.test.js b/test/perf-budget.test.js
iindex b1c30e7..2272c74 100644
---- a/test/perf-budget.test.js
++++ b/test/perf-budget.test.js
@@@ -4,8 +4,6 @@
  // measurement; raising one is a decision to state in the commit.
  //   node test/perf-budget.test.js
  const assert = require('assert');
--const fs = require('fs');
--const os = require('os');
  const net = require('net');
  const path = require('path');
  const { spawn } = require('child_process');
@@@ -26,11 +24,10 @@ const BUDGETS = {
  const freePort = () => new Promise((resolve) => { const s = net.createServer(); s.listen(0, '127.0.0.1', () => { const { port } = s.address(); s.close(() => resolve(port)); }); });
  
  (async () => {
--    const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'ov-budget-'));
      const port = await freePort();
      const child = spawn(process.execPath, [path.join(__dirname, '..', 'server', 'index.js')], {
          cwd: path.join(__dirname, '..'),
--        env: { ...process.env, PORT: String(port), HOST: '127.0.0.1', NODE_ENV: 'test', COMMUNITY_DB_PATH: path.join(dir, 'community.db') },
++        env: { ...process.env, PORT: String(port), HOST: '127.0.0.1', NODE_ENV: 'test' },
          stdio: ['ignore', 'ignore', 'pipe'],
      });
      let stderr = '';
@@@ -50,6 +47,5 @@ const freePort = () => new Promise((resolve) => { const s = net.createServer();
          console.log('perf budget: all checks passed');
      } finally {
          child.kill();
--        fs.rmSync(dir, { recursive: true, force: true });
      }
  })().catch((err) => { console.error(err); process.exitCode = 1; });