From f0439000cbed0ffdccad0521748bcf1738af4a0c Mon Sep 17 00:00:00 2001
From: Elijah Duffy <elijah@thatoneguy.ca>
Date: Tue, 27 Oct 2026 23:07:22 -0700
Subject: [PATCH] feat(migrate): configure embedded Goose providers (#14)

Add embedded SQL and provider-local Go migrations with slog logging and
Postgres session locking, returning Goose's Provider directly.

Cover timestamp and sequential versions, failure recovery, and concurrent
startup with SQLite and Postgres tests. Reuse page's Postgres CI service.
Document authoring conventions and the Go template compatibility gate.

Closes #7
Refs #9
---
 .gitea/workflows/ci.yml                       |  38 +-
 README.md                                     |   5 +
 go.mod                                        |  20 +
 go.sum                                        | 135 ++++--
 migrate/README.md                             |  97 ++++
 migrate/migrate.go                            |  65 +++
 migrate/migrate_test.go                       | 457 ++++++++++++++++++
 migrate/testdata/failure/00007_events.sql     |   6 +
 .../failure/20261026093000_second.sql         |   5 +
 .../failure/20261027114500_broken.sql         |   6 +
 migrate/testdata/migrations/00007_events.sql  |   6 +
 .../migrations/20261026093000_second.sql      |   5 +
 .../migrations/20261027114500_third.sql       |   5 +
 migrate/testdata/numeric/00007_events.sql     |   6 +
 migrate/testdata/numeric/00010_event.sql      |   5 +
 15 files changed, 805 insertions(+), 56 deletions(-)
 create mode 100644 migrate/README.md
 create mode 100644 migrate/migrate.go
 create mode 100644 migrate/migrate_test.go
 create mode 100644 migrate/testdata/failure/00007_events.sql
 create mode 100644 migrate/testdata/failure/20261026093000_second.sql
 create mode 100644 migrate/testdata/failure/20261027114500_broken.sql
 create mode 100644 migrate/testdata/migrations/00007_events.sql
 create mode 100644 migrate/testdata/migrations/20261026093000_second.sql
 create mode 100644 migrate/testdata/migrations/20261027114500_third.sql
 create mode 100644 migrate/testdata/numeric/00007_events.sql
 create mode 100644 migrate/testdata/numeric/00010_event.sql

diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 265a02c..5910f78 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -15,6 +15,17 @@ on:
 jobs:
   check:
     runs-on: ubuntu-latest
+    services:
+      postgres:
+        image: postgres:17-alpine
+        env:
+          POSTGRES_PASSWORD: page-test
+          POSTGRES_DB: page_test
+        options: >-
+          --health-cmd "pg_isready -U postgres -d page_test"
+          --health-interval 5s
+          --health-timeout 5s
+          --health-retries 12
     steps:
       - uses: actions/checkout@v7.0.1
         with:
@@ -26,6 +37,11 @@ jobs:
         run: test -z "$(gofmt -l .)"
       - run: go vet ./...
       - run: go test -race ./...
+        env:
+          CI: "true"
+          MIGRATE_POSTGRES_DSN: postgres://postgres:page-test@postgres:5432/page_test?sslmode=disable
+          PAGE_POSTGRES_DSN: postgres://postgres:page-test@postgres:5432/page_test?sslmode=disable
+          PAGE_REQUIRE_POSTGRES: "1"
       - name: Require issue URLs in TODO comments
         run: |
           find . -type d \( -name .git -o -name node_modules -o -name vendor -o -name generated -o -name gen -o -name target -o -name dist -o -name build -o -name .svelte-kit -o -name .next \) -prune -o -type f \( -name '*.go' -o -name '*.ts' -o -name '*.tsx' -o -name '*.js' -o -name '*.svelte' -o -name '*.rs' -o -name '*.sql' -o -name '*.sh' -o -name '*.proto' -o -name '*.graphql' -o -name '*.yml' -o -name '*.yaml' -o -name '*.toml' \) -exec awk 'match($0, "((^|[^:])[/][/]|[/][*]|(^|[[:space:]])(#|--)|^[[:space:]]*([*]|<!--))") { comment=substr($0, RSTART + RLENGTH); todo=index(comment, "TO" "DO"); if (todo && substr(comment, todo + 4) !~ "https?:[/][/]") { print FILENAME ":" FNR ":" $0; bad=1 } } END { exit bad }' {} + # shortcut: line-based scan can flag comment-like strings and misses multiline issue links, use a parser when these need accurate coverage
@@ -41,25 +57,3 @@ jobs:
           distribution: goreleaser
           version: v2.19.0
           args: release --snapshot --clean
-  postgres:
-    runs-on: ubuntu-latest
-    services:
-      postgres:
-        image: postgres:17-alpine
-        env:
-          POSTGRES_PASSWORD: page-test
-          POSTGRES_DB: page_test
-        options: >-
-          --health-cmd "pg_isready -U postgres -d page_test"
-          --health-interval 5s
-          --health-timeout 5s
-          --health-retries 12
-    env:
-      PAGE_POSTGRES_DSN: postgres://postgres:page-test@postgres:5432/page_test?sslmode=disable
-      PAGE_REQUIRE_POSTGRES: "1"
-    steps:
-      - uses: actions/checkout@v7.0.1
-      - uses: actions/setup-go@v7.0.0
-        with:
-          go-version-file: go.mod
-      - run: go test -race ./page
diff --git a/README.md b/README.md
index 6cf0721..e547bdf 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,11 @@
 
 Shared Go building blocks. Includes `docs`, a checker for architecture decision records (ADRs) and implementation plans; `page`, Bob keyset pagination; and `lifecycle`, a service and worker coordinator.
 
+## migrate
+
+[`migrate`](migrate/README.md) configures Goose providers for embedded SQL and Go
+migrations, with structured logging and Postgres startup locking.
+
 ## docs
 
 Install:
diff --git a/go.mod b/go.mod
index d08f5c6..554f50d 100644
--- a/go.mod
+++ b/go.mod
@@ -3,15 +3,35 @@ module go.auvem.com/corestack
 go 1.27.1
 
 require (
+	github.com/jackc/pgx/v5 v5.11.0
 	github.com/lib/pq v1.10.9
 	github.com/mattn/go-sqlite3 v1.14.32
+	github.com/pressly/goose/v3 v3.29.0
 	github.com/stephenafamo/bob v0.50.0
 	github.com/stephenafamo/scan v0.9.0
 	github.com/yuin/goldmark v1.8.6
 	go.yaml.in/yaml/v3 v3.0.5
+	modernc.org/sqlite v1.60.1
 )
 
 require (
 	github.com/aarondl/opt v0.0.0-20250607033636-982744e1bd65 // indirect
+	github.com/dustin/go-humanize v1.1.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
+	github.com/jackc/puddle/v2 v2.2.3 // indirect
+	github.com/mattn/go-isatty v0.0.24 // indirect
+	github.com/mfridman/interpolate v0.0.2 // indirect
+	github.com/ncruces/go-strftime v1.1.0 // indirect
 	github.com/qdm12/reprint v0.0.0-20200326205758-722754a53494 // indirect
+	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	github.com/sethvargo/go-retry v0.5.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	golang.org/x/sync v0.24.0 // indirect
+	golang.org/x/sys v0.49.0 // indirect
+	golang.org/x/text v0.43.0 // indirect
+	modernc.org/libc v1.78.0 // indirect
+	modernc.org/mathutil v1.7.1 // indirect
+	modernc.org/memory v1.12.1 // indirect
 )
diff --git a/go.sum b/go.sum
index f772a14..04d1ff7 100644
--- a/go.sum
+++ b/go.sum
@@ -2,14 +2,16 @@ dario.cat/mergo v1.0.1 h1:Ra4+bf83h2ztPIQYNP99R6m+Y7KfnARDfID+a+vLl4s=
 dario.cat/mergo v1.0.1/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
 github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 h1:UQHMgLO+TxOElx5B5HZ4hJQsoJ/PvUvKRhJHDQXO8P8=
 github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E=
-github.com/Microsoft/go-winio v0.6.2 h1:F2VQgta7ecxGYO8k3ZZz3RS8fVIXVxONVUPlNERoyfY=
-github.com/Microsoft/go-winio v0.6.2/go.mod h1:yd8OoFMLzJbo9gZq8j5qaps8bJ9aShtEA8Ipt1oGCvU=
+github.com/Microsoft/go-winio v0.6.3 h1:M/52tsoyTfwaxajLnXZm7PqkbMGRH8iSWP+8fcg9MQ4=
+github.com/Microsoft/go-winio v0.6.3/go.mod h1:ma0QpxizD4fyyzJ1C7MIblymTD2Nxz5Mho/3CepwIZg=
 github.com/aarondl/opt v0.0.0-20250607033636-982744e1bd65 h1:lbdPe4LBNmNDzeQFwNhEc88w90841qv737MI4+aXSYU=
 github.com/aarondl/opt v0.0.0-20250607033636-982744e1bd65/go.mod h1:+xKBXrTAUOvrDXO5PRwIr4E1wciHY3Glgl+6OkCXknU=
 github.com/antlr4-go/antlr/v4 v4.13.1 h1:SqQKkuVZ+zWkMMNkjy5FZe5mr5WURWnlpmOuzYWrPrQ=
 github.com/antlr4-go/antlr/v4 v4.13.1/go.mod h1:GKmUxMtwp6ZgGwZSva4eWPC5mS6vUAmOABFgjdkM7Nw=
 github.com/cenkalti/backoff/v4 v4.2.1 h1:y4OZtCnogmCPw98Zjyt5a6+QwPLGkiQsYW5oUqylYbM=
 github.com/cenkalti/backoff/v4 v4.2.1/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/containerd/errdefs v1.0.0 h1:tg5yIfIlQIrxYtu9ajqY42W3lpS19XqdxRQeEwYG8PI=
 github.com/containerd/errdefs v1.0.0/go.mod h1:+YBYIdtsnF4Iw6nWZhJcqGSg/dwvV7tyJ/kCkyJ2k+M=
 github.com/containerd/errdefs/pkg v0.3.0 h1:9IKJ06FvyNlexW690DXuQNx2KA2cUJXx151Xdx3ZPPE=
@@ -21,22 +23,23 @@ github.com/containerd/platforms v0.2.1/go.mod h1:XHCb+2/hzowdiut9rkudds9bE5yJ7np
 github.com/cpuguy83/dockercfg v0.3.2 h1:DlJTyZGBDlXqUZ2Dk2Q3xHs/FtnooJJVaad2S9GKorA=
 github.com/cpuguy83/dockercfg v0.3.2/go.mod h1:sugsbF4//dDlL/i+S+rtpIWp+5h0BHJHfjj5/jFyUJc=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/distribution/reference v0.6.0 h1:0IXCQ5g4/QMHHkarYzh5l+u8T3t73zM5QvfrDyIgxBk=
 github.com/distribution/reference v0.6.0/go.mod h1:BbU0aIcezP1/5jX/8MP0YiH4SdvB5Y4f/wlDRiLyi3E=
 github.com/docker/docker v28.2.2+incompatible h1:CjwRSksz8Yo4+RmQ339Dp/D2tGO5JxwYeqtMOEe0LDw=
 github.com/docker/docker v28.2.2+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
-github.com/docker/go-connections v0.5.0 h1:USnMq7hx7gwdVZq1L49hLXaFtUdTADjXGp+uj1Br63c=
-github.com/docker/go-connections v0.5.0/go.mod h1:ov60Kzw0kKElRwhNs9UlUHAE/F9Fe6GLaXnqyDdmEXc=
+github.com/docker/go-connections v0.8.2 h1:9d9DEokx5W7qlr0shkFXIxEA7+TTD+llwzcykSlxMNc=
+github.com/docker/go-connections v0.8.2/go.mod h1:no1qkHdjq7kLMGUXYAduOhYPSJxxvgWBh7ogVvptn3Q=
 github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4=
 github.com/docker/go-units v0.5.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
+github.com/dustin/go-humanize v1.1.0 h1:dbKTrvD0klcbBV/h4AWJdMuZogJACoMlvWIWZ5b2xWg=
+github.com/dustin/go-humanize v1.1.0/go.mod h1:hc1CvRkJMsgxqjmjMQF3QNRAZBwY8AXBAzKYoSX9sFI=
 github.com/ebitengine/purego v0.8.4 h1:CF7LEKg5FFOsASUj0+QwaXf8Ht6TlFxg09+S9wz0omw=
 github.com/ebitengine/purego v0.8.4/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
-github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg=
-github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
-github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
-github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/felixge/httpsnoop v1.1.0 h1:3YtUj32ZZkqZtt3sZZsClsymw/QDuVfpNhoA31zeORc=
+github.com/felixge/httpsnoop v1.1.0/go.mod h1:Zqxgdd+1Rkcz8euOqdr7lqgCRJztwr5hp9vDSi5UZCE=
+github.com/go-logr/logr v1.4.4 h1:tG4xh9yMsRCAiodLVTxyrkzSZ9+o0L1Kg/+cPVcbP/8=
+github.com/go-logr/logr v1.4.4/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
 github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
@@ -45,18 +48,34 @@ github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
 github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
 github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
 github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
+github.com/google/pprof v0.0.0-20260802141513-ef3492d7dac3 h1:LMLX+LgTNWpfvCBdFebv6EsYotImrt/Ppc5cXIriCSo=
+github.com/google/pprof v0.0.0-20260802141513-ef3492d7dac3/go.mod h1:jl5iWTm0/hd5PjEYEOuwAJ57L/CibdZfrqZ5XA5GrCk=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/klauspost/compress v1.18.0 h1:c/Cqfb0r+Yi+JtIEq73FWXVkRonBlf0CRNYc8Zttxdo=
-github.com/klauspost/compress v1.18.0/go.mod h1:2Pp+KzxcywXVXMr50+X0Q/Lsb43OQHYWRCY2AiWywWQ=
+github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
+github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
+github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
+github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
+github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo=
+github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
+github.com/jackc/pgx/v5 v5.11.0 h1:IzBBtyK9AHqf98cctWFifYSci2hgQR/cd56wB4p+ogg=
+github.com/jackc/pgx/v5 v5.11.0/go.mod h1:mal1tBGAFfLHvZzaYh77YS/eC6IX9OWbRV1QIIM0Jn4=
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+github.com/klauspost/compress v1.20.1 h1:T7kKElXUMXrUJ2E9QhQhxFtcK5rPyLdsGZvdbLMPdiQ=
+github.com/klauspost/compress v1.20.1/go.mod h1:LUdAzn7YLVvxLpc7y3V1m40wESHTgc1422pwwBSKYuI=
 github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
 github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
 github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 h1:6E+4a0GO5zZEnZ81pIr0yLvtUWk2if982qA3F3QD6H4=
 github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0/go.mod h1:zJYVVT2jmtg6P3p1VtQj7WsuWi/y4VnjVBn7F8KPB3I=
 github.com/magiconair/properties v1.8.10 h1:s31yESBquKXCV9a/ScB3ESkOjUYYv+X0rg8SYxI99mE=
 github.com/magiconair/properties v1.8.10/go.mod h1:Dhd985XPs7jluiymwWYZ0G4Z61jb3vdS329zhj2hYo0=
+github.com/mattn/go-isatty v0.0.24 h1:tGZZoVgT/KiqK1c8ocVLeDS8BSWMRd47J3Lbz7vsReI=
+github.com/mattn/go-isatty v0.0.24/go.mod h1:nMCL3Zebbrt45jsMDgnfIwz6ydEQApk5oEI3HqDio6A=
 github.com/mattn/go-sqlite3 v1.14.32 h1:JD12Ag3oLy1zQA+BNn74xRgaBbdhbNIDYvQUEuuErjs=
 github.com/mattn/go-sqlite3 v1.14.32/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=
+github.com/mfridman/interpolate v0.0.2 h1:pnuTK7MQIxxFz1Gr+rjSIx9u7qVjf5VOoM/u6BbAxPY=
+github.com/mfridman/interpolate v0.0.2/go.mod h1:p+7uk6oE07mpE/Ik1b8EckO0O4ZXiGAfshKBWLUM9Xg=
 github.com/moby/docker-image-spec v1.3.1 h1:jMKff3w6PgbfSa69GfNg+zN/XLhfXJGnEx3Nl2EsFP0=
 github.com/moby/docker-image-spec v1.3.1/go.mod h1:eKmb5VW8vQEh/BAr2yvVNvuiJuY6UIocYsFu/DxxRpo=
 github.com/moby/go-archive v0.1.0 h1:Kk/5rdW/g+H8NHdJW2gsXyZ7UnzvJNOy6VKJqueWdcQ=
@@ -73,6 +92,8 @@ github.com/moby/term v0.5.0 h1:xt8Q1nalod/v7BqbG21f8mQPqH+xAaC9C3N3wfWbVP0=
 github.com/moby/term v0.5.0/go.mod h1:8FzsFHVUBGZdbDsJw/ot+X+d5HLUbvklYLJ9uGfcI3Y=
 github.com/morikuni/aec v1.0.0 h1:nP9CBfwrvYnBRgY6qfDQkygYDmYwOilePFkwzv4dU8A=
 github.com/morikuni/aec v1.0.0/go.mod h1:BbKIizmSmc5MMPqRYbxO4ZU0S0+P200+tUnFx7PXmsc=
+github.com/ncruces/go-strftime v1.1.0 h1:vtPmPWMkb539RGV9WpWT9EwJGvrOCKvMNI4obWL47Hk=
+github.com/ncruces/go-strftime v1.1.0/go.mod h1:yVaq7iwCN09vHRrKBrrflXT0M9tTMG2KmZ9Fj7xeG/g=
 github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
 github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
 github.com/opencontainers/image-spec v1.1.1 h1:y0fUlFfIZhPF1W537XOLg0/fcx6zcHCJwooC2xJA040=
@@ -81,12 +102,17 @@ github.com/pganalyze/pg_query_go/v6 v6.1.0 h1:jG5ZLhcVgL1FAw4C/0VNQaVmX1SUJx71wB
 github.com/pganalyze/pg_query_go/v6 v6.1.0/go.mod h1:nvTHIuoud6e1SfrUaFwHqT0i4b5Nr+1rPWVds3B5+50=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c h1:ncq/mPwQF4JjgDlrVEn3C11VoGHZN7m8qihwgMEtzYw=
 github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c/go.mod h1:OmDBASR4679mdNQnz2pUhc2G8CO2JrUAVFDRBDP/hJE=
+github.com/pressly/goose/v3 v3.29.0 h1:dtEnBCT7CqkHIUCdgrXsrmeisaN8gFkRU4Y5OEwif4o=
+github.com/pressly/goose/v3 v3.29.0/go.mod h1:plA4aP4+u+Q3FMTgbFbhF8TuAWpAdfWpoFGkJsIFWh0=
 github.com/qdm12/reprint v0.0.0-20200326205758-722754a53494 h1:wSmWgpuccqS2IOfmYrbRiUgv+g37W5suLLLxwwniTSc=
 github.com/qdm12/reprint v0.0.0-20200326205758-722754a53494/go.mod h1:yipyliwI08eQ6XwDm1fEwKPdF/xdbkiHtrU+1Hg+vc4=
+github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
+github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
+github.com/sethvargo/go-retry v0.5.0 h1:JYfFKmVJ8ER06GReN1efzc5cm52BrVsFVzmcHiKJwfY=
+github.com/sethvargo/go-retry v0.5.0/go.mod h1:tvsjdKG6xfiCx4LSiUZ06kcv38xvdVQwv8R6/VnnVWg=
 github.com/shirou/gopsutil/v4 v4.25.5 h1:rtd9piuSMGeU8g1RMXjZs9y9luK5BwtnG7dZaQUJAsc=
 github.com/shirou/gopsutil/v4 v4.25.5/go.mod h1:PfybzyydfZcN+JMMjkF6Zb8Mq1A/VcogFFg7hj50W9c=
 github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
@@ -100,9 +126,11 @@ github.com/stephenafamo/scan v0.9.0/go.mod h1:FhIUJ8pLNyex36xGFiazDJJ5Xry0UkAi+R
 github.com/stephenafamo/sqlparser v0.0.0-20260122161205-e324475bd1fc h1:D/IjFvgl7MXcuKnXzGCOAMKTfzopgxdLYIy0HZx+CI4=
 github.com/stephenafamo/sqlparser v0.0.0-20260122161205-e324475bd1fc/go.mod h1:2ATW++wFz7Mvc/N+nUtQnU+9VIGAxrn8m9JCLDSWMsQ=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
-github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
-github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.12.1 h1:EuwCh5fleGS7H32xRwO3wRGT7DxrDhLAT6FF8MpWDWE=
+github.com/stretchr/testify v1.12.1/go.mod h1:MDEgiDPPsNp5cuIrHPPCyornHKgEVbtFUmoNlxoYthg=
 github.com/testcontainers/testcontainers-go v0.38.0 h1:d7uEapLcv2P8AvH8ahLqDMMxda2W9gQN1nRbHS28HBw=
 github.com/testcontainers/testcontainers-go v0.38.0/go.mod h1:C52c9MoHpWO+C4aqmgSU+hxlR5jlEayWtgYrb8Pzz1w=
 github.com/testcontainers/testcontainers-go/modules/postgres v0.38.0 h1:KFdx9A0yF94K70T6ibSuvgkQQeX1xKlZVF3hEagXEtY=
@@ -121,27 +149,66 @@ github.com/yuin/goldmark v1.8.6 h1:d0VcaP1sx9GkFVkoW+KtggpGi2KZ965i14b0+bDQST4=
 github.com/yuin/goldmark v1.8.6/go.mod h1:ip/1k0VRfGynBgxOz0yCqHrbZXhcjxyuS66Brc7iBKg=
 github.com/yusufpapurcu/wmi v1.2.4 h1:zFUKzehAFReQwLys1b/iSMl+JQGSCSjtVqQn9bBrPo0=
 github.com/yusufpapurcu/wmi v1.2.4/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
-go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
-go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
-go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0 h1:jq9TW8u3so/bN+JPT166wjOI6/vQPF6Xe7nMNIltagk=
-go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0/go.mod h1:p8pYQP+m5XfbZm9fxtSKAbM6oIllS7s2AfxrChvc7iw=
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+go.opentelemetry.io/auto/sdk v1.2.1 h1:jXsnJ4Lmnqd11kwkBV2LgLoFMZKizbCi5fNZ/ipaZ64=
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diff --git a/migrate/README.md b/migrate/README.md
new file mode 100644
index 0000000..f76e5e0
--- /dev/null
+++ b/migrate/README.md
@@ -0,0 +1,97 @@
+# migrate
+
+`go.auvem.com/corestack/migrate` sets the house configuration for
+[Goose's Provider API](https://pressly.github.io/goose/documentation/provider/).
+It returns `*goose.Provider` directly: Goose owns execution, version tracking,
+status, and errors. There is no lifecycle dependency or background work.
+
+Create SQL migration files with Goose's
+[`create` command](https://pressly.github.io/goose/documentation/cli-commands/#create).
+For timestamp-to-sequential reconciliation before deployment, use its
+[`fix` command](https://pressly.github.io/goose/documentation/cli-commands/#fix)
+as described in [hybrid versioning](https://github.com/pressly/goose#hybrid-versioning).
+These commands edit source files before embedding; `fix` does not update database
+history. Never renumber migrations already applied to shared databases.
+
+**Goose's default Go template is not compatible unchanged with this package.**
+It registers migrations globally from `init`, while this package uses explicit
+provider-local registration. Until the compatible authoring CLI planned in
+[#9](https://gitea.auvem.com/corestack/go/issues/9) is available, Go migrations
+require the adaptation described below; do not treat stock `goose create ... go`
+output as ready to use. That follow-up must supply and document the supported
+creation/reconciliation workflow before it is complete.
+
+Embed migrations in the application's binary and run them before serving traffic:
+
+```go
+package app
+
+import (
+    "context"
+    "database/sql"
+    "embed"
+    "log/slog"
+
+    "github.com/pressly/goose/v3"
+    "go.auvem.com/corestack/migrate"
+)
+
+//go:embed migrations/*.sql
+var migrations embed.FS
+
+func migrateDatabase(ctx context.Context, db *sql.DB, logger *slog.Logger) error {
+    provider, err := migrate.New(db, goose.DialectPostgres, migrations, "migrations", logger)
+    if err != nil {
+        return err
+    }
+    _, err = provider.Up(ctx)
+    return err
+}
+```
+
+The caller opens and closes `db`, selects a matching database driver and dialect,
+supplies a nonnil logger, and controls the operation context/deadline. Construction
+is offline; SQL is parsed lazily by Goose. `Provider.Close` also closes `db`, so do
+not defer it when sharing the pool with the application. Use `"."` for SQL files
+at the embedded root. Files in the selected directory are discovered directly,
+without recursively searching subdirectories.
+
+Preserve Goose's creator/fix filenames and ship the complete migration history.
+The pinned Goose SQL-only provider relies on lexical filename order matching
+numeric version order. Timestamp versions and gaps are supported; never derive
+versions from file counts. For operations, errors, and SQL annotations, use the
+[Provider API](https://pkg.go.dev/github.com/pressly/goose/v3#Provider) and
+[SQL migration docs](https://pressly.github.io/goose/documentation/annotations/).
+
+For Go functions, use Goose's
+[provider-local registration](https://pressly.github.io/goose/documentation/provider/#withgomigrations):
+pass fresh `goose.NewGoMigration` values as the trailing arguments to `migrate.New`.
+The creator's default Go template instead calls `goose.AddMigrationContext` from
+`init`; replace that registration with provider-local construction. Global
+registration is disabled to keep each provider's migration set isolated and avoid
+import side effects. If `fix` renames Go migrations, update their explicit
+registration versions to match. Versions must be unique across SQL and Go files.
+
+Postgres providers automatically use Goose's default session advisory locker.
+Concurrent startup calls from separate providers/processes serialize migration
+execution and recheck applied versions under the lock. The default lock ID
+serializes Goose migrations throughout the same database, including different
+schemas. Use a direct connection or a session-pooling proxy: transaction pooling
+cannot preserve session locks.
+`RunDB` Go migrations need spare pool connections while the locked session is
+held; avoid a one-connection pool for them.
+
+Other dialects have no cross-provider/process lock configured by this package.
+Serialize migration runs externally, for example with a single deployment job.
+SQLite tests validate the SQL convention, not concurrent daemon startup safety.
+
+Run the integration suite against an existing Postgres database with schema
+creation privileges:
+
+```sh
+MIGRATE_POSTGRES_DSN='postgres://user:password@localhost/testdb?sslmode=disable' go test -race ./migrate
+```
+
+Tests create and clean only random schemas they own. Without a DSN, Postgres
+tests skip locally; in CI a missing DSN fails, and the CI job supplies a Postgres
+service. SQLite tests always run in process using temporary databases.
diff --git a/migrate/migrate.go b/migrate/migrate.go
new file mode 100644
index 0000000..a0778c2
--- /dev/null
+++ b/migrate/migrate.go
@@ -0,0 +1,65 @@
+// Package migrate configures Goose providers for embedded application migrations.
+// Applications own their database, migration files, and startup ordering.
+package migrate
+
+import (
+	"database/sql"
+	"embed"
+	"fmt"
+	"io/fs"
+	"log/slog"
+
+	"github.com/pressly/goose/v3"
+	"github.com/pressly/goose/v3/lock"
+)
+
+// New returns a provider for SQL files in dir and optional provider-local Go
+// migrations. Pass "." for files at the embedded root and a nonnil logger.
+// The selected directory must exist, including when using only Go migrations.
+// Construction does not connect to db; the caller owns and closes db.
+//
+// PostgreSQL uses Goose's session advisory locker with its default lock ID and
+// retry limits. Other dialects require the caller to serialize migration runs
+// across providers/processes. PostgreSQL connections must preserve session
+// affinity (transaction-pooling proxies cannot safely hold session locks).
+//
+// Use the returned Provider's Up, UpTo, DownTo, Status, GetDBVersion, GetVersions,
+// and HasPending methods directly. Create migration files with Goose's create
+// command; lexical filename order must match numeric version order. Go migrations
+// are registered per provider; global Go registration is ignored.
+func New(db *sql.DB, dialect goose.Dialect, files embed.FS, dir string, logger *slog.Logger, migrations ...*goose.Migration) (*goose.Provider, error) {
+	for i, migration := range migrations {
+		if migration == nil {
+			return nil, fmt.Errorf("migrate: Go migration %d must not be nil", i)
+		}
+	}
+	root, err := fs.Sub(files, dir)
+	if err != nil {
+		return nil, fmt.Errorf("migrate: directory %q: %w", dir, err)
+	}
+	info, err := fs.Stat(root, ".")
+	if err != nil {
+		return nil, fmt.Errorf("migrate: directory %q: %w", dir, err)
+	}
+	if !info.IsDir() {
+		return nil, fmt.Errorf("migrate: directory %q: not a directory", dir)
+	}
+	opts := []goose.ProviderOption{
+		goose.WithDisableGlobalRegistry(true),
+		goose.WithGoMigrations(migrations...),
+		goose.WithSlog(logger),
+		goose.WithVerbose(true),
+	}
+	if dialect == goose.DialectPostgres {
+		locker, err := lock.NewPostgresSessionLocker()
+		if err != nil {
+			return nil, fmt.Errorf("migrate: postgres locker: %w", err)
+		}
+		opts = append(opts, goose.WithSessionLocker(locker))
+	}
+	provider, err := goose.NewProvider(dialect, db, root, opts...)
+	if err != nil {
+		return nil, fmt.Errorf("migrate: new provider: %w", err)
+	}
+	return provider, nil
+}
diff --git a/migrate/migrate_test.go b/migrate/migrate_test.go
new file mode 100644
index 0000000..9534981
--- /dev/null
+++ b/migrate/migrate_test.go
@@ -0,0 +1,457 @@
+package migrate_test
+
+import (
+	"bytes"
+	"context"
+	"crypto/rand"
+	"database/sql"
+	"embed"
+	"errors"
+	"io"
+	"io/fs"
+	"log/slog"
+	"os"
+	"path/filepath"
+	"slices"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/stdlib"
+	"github.com/pressly/goose/v3"
+	_ "modernc.org/sqlite"
+
+	"go.auvem.com/corestack/migrate"
+)
+
+// invariant: embedded fixtures are read-only; no test mutates shared migration state.
+//
+//go:embed testdata
+var fixtures embed.FS
+
+func TestSQLite(t *testing.T) {
+	for _, test := range []struct {
+		name string
+		run  func(*testing.T, *sql.DB, goose.Dialect)
+	}{
+		{"flow", testFlow}, {"sql-only", testSQLOnly}, {"failure", testFailure},
+	} {
+		t.Run(test.name, func(t *testing.T) {
+			db, err := sql.Open("sqlite", filepath.Join(t.TempDir(), "migrate.db"))
+			if err != nil {
+				t.Fatal(err)
+			}
+			t.Cleanup(func() {
+				if err := db.Close(); err != nil {
+					t.Error(err)
+				}
+			})
+			test.run(t, db, goose.DialectSQLite3)
+		})
+	}
+}
+
+func TestPostgres(t *testing.T) {
+	for _, test := range []struct {
+		name string
+		run  func(*testing.T, *sql.DB, goose.Dialect)
+	}{
+		{"flow", testFlow}, {"sql-only", testSQLOnly}, {"failure", testFailure},
+	} {
+		t.Run(test.name, func(t *testing.T) { test.run(t, postgresDatabase(t)(), goose.DialectPostgres) })
+	}
+}
+
+func testFlow(t *testing.T, db *sql.DB, dialect goose.Dialect) {
+	t.Helper()
+	ctx, cancel := context.WithTimeout(t.Context(), time.Minute)
+	defer cancel()
+	var logs bytes.Buffer
+	goMigration := goose.NewGoMigration(20261027120000,
+		&goose.GoFunc{RunTx: func(ctx context.Context, tx *sql.Tx) error {
+			_, err := tx.ExecContext(ctx, "INSERT INTO migration_events (version) VALUES (20261027120000)")
+			return err
+		}},
+		&goose.GoFunc{RunTx: func(ctx context.Context, tx *sql.Tx) error {
+			_, err := tx.ExecContext(ctx, "DELETE FROM migration_events WHERE version = 20261027120000")
+			return err
+		}})
+	p, err := migrate.New(db, dialect, fixtures, "testdata/migrations", slog.New(slog.NewJSONHandler(&logs, nil)), goMigration)
+	if err != nil {
+		t.Fatal(err)
+	}
+	versions := []int64{7, 20261026093000, 20261027114500, 20261027120000}
+	// Registering on one provider must not leak into another provider in the same process.
+	other := newProvider(t, db, dialect, "testdata/migrations")
+	if len(other.ListSources()) != 3 {
+		t.Fatal("Go migration leaked to another provider")
+	}
+	assertState(t, ctx, p, 0, versions, 0)
+	results, err := p.UpTo(ctx, versions[1])
+	if err != nil {
+		t.Fatal(err)
+	}
+	assertResults(t, results, versions[:2])
+	assertState(t, ctx, p, versions[1], versions, 2)
+	results, err = p.Up(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	assertResults(t, results, versions[2:])
+	assertState(t, ctx, p, versions[3], versions, 4)
+	assertEvents(t, ctx, db, versions)
+	results, err = p.Up(ctx)
+	if err != nil || len(results) != 0 {
+		t.Fatalf("idempotent Up = %v, %v", results, err)
+	}
+	results, err = p.DownTo(ctx, versions[1])
+	if err != nil {
+		t.Fatal(err)
+	}
+	assertResults(t, results, []int64{versions[3], versions[2]})
+	assertState(t, ctx, p, versions[1], versions, 2)
+	assertEvents(t, ctx, db, versions[:2])
+	results, err = p.DownTo(ctx, versions[0])
+	if err != nil {
+		t.Fatal(err)
+	}
+	assertResults(t, results, []int64{versions[1]})
+	assertState(t, ctx, p, versions[0], versions, 1)
+	assertEvents(t, ctx, db, versions[:1])
+	if _, err := p.DownTo(ctx, 0); err != nil {
+		t.Fatal(err)
+	}
+	assertState(t, ctx, p, 0, versions, 0)
+	results, err = p.Up(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	assertResults(t, results, versions)
+	assertEvents(t, ctx, db, versions)
+	if !strings.Contains(logs.String(), `"logger":"goose"`) || !strings.Contains(logs.String(), `"version":20261027114500`) {
+		t.Fatalf("missing structured migration logs: %s", logs.String())
+	}
+}
+
+func testSQLOnly(t *testing.T, db *sql.DB, dialect goose.Dialect) {
+	t.Helper()
+	ctx, cancel := context.WithTimeout(t.Context(), time.Minute)
+	defer cancel()
+	for _, test := range []struct {
+		dir      string
+		versions []int64
+	}{
+		{"testdata/numeric", []int64{7, 10}},
+		{"testdata/migrations", []int64{7, 20261026093000, 20261027114500}},
+	} {
+		p := newProvider(t, db, dialect, test.dir)
+		assertState(t, ctx, p, 0, test.versions, 0)
+		results, err := p.UpTo(ctx, test.versions[1]-1)
+		if err != nil {
+			t.Fatal(err)
+		}
+		assertResults(t, results, test.versions[:1])
+		assertState(t, ctx, p, test.versions[0], test.versions, 1)
+		results, err = p.Up(ctx)
+		if err != nil {
+			t.Fatal(err)
+		}
+		assertResults(t, results, test.versions[1:])
+		assertState(t, ctx, p, test.versions[len(test.versions)-1], test.versions, len(test.versions))
+		assertEvents(t, ctx, db, test.versions)
+		results, err = p.DownTo(ctx, test.versions[1]-1)
+		if err != nil {
+			t.Fatal(err)
+		}
+		wantDown := slices.Clone(test.versions[1:])
+		slices.Reverse(wantDown)
+		assertResults(t, results, wantDown)
+		assertState(t, ctx, p, test.versions[0], test.versions, 1)
+		if _, err := p.DownTo(ctx, 0); err != nil {
+			t.Fatal(err)
+		}
+		assertState(t, ctx, p, 0, test.versions, 0)
+	}
+}
+
+func testFailure(t *testing.T, db *sql.DB, dialect goose.Dialect) {
+	t.Helper()
+	ctx, cancel := context.WithTimeout(t.Context(), time.Minute)
+	defer cancel()
+	p := newProvider(t, db, dialect, "testdata/failure")
+	_, err := p.Up(ctx)
+	var partial *goose.PartialError
+	if !errors.As(err, &partial) || partial.Failed.Source.Version != 20261027114500 ||
+		!strings.Contains(err.Error(), "missing_migration_table") || !strings.Contains(err.Error(), "20261027114500") {
+		t.Fatalf("expected clear failed timestamp migration error, got %v", err)
+	}
+	assertResults(t, partial.Applied, []int64{7, 20261026093000})
+	assertState(t, ctx, p, 20261026093000, []int64{7, 20261026093000, 20261027114500}, 2)
+	assertEvents(t, ctx, db, []int64{7, 20261026093000})
+	// A second attempt must fail at the same version without repeating committed work.
+	if _, err := p.Up(ctx); err == nil {
+		t.Fatal("retry unexpectedly succeeded")
+	}
+	assertEvents(t, ctx, db, []int64{7, 20261026093000})
+}
+
+func newProvider(t *testing.T, db *sql.DB, dialect goose.Dialect, dir string, migrations ...*goose.Migration) *goose.Provider {
+	t.Helper()
+	p, err := migrate.New(db, dialect, fixtures, dir, slog.New(slog.NewTextHandler(io.Discard, nil)), migrations...)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return p
+}
+
+func assertState(t *testing.T, ctx context.Context, p *goose.Provider, current int64, versions []int64, applied int) {
+	t.Helper()
+	var sources []int64
+	for _, source := range p.ListSources() {
+		sources = append(sources, source.Version)
+	}
+	if !slices.Equal(sources, versions) {
+		t.Fatalf("ListSources = %v; want %v", sources, versions)
+	}
+	got, err := p.GetDBVersion(ctx)
+	if err != nil || got != current {
+		t.Fatalf("GetDBVersion = %d, %v; want %d", got, err, current)
+	}
+	got, latest, err := p.GetVersions(ctx)
+	if err != nil || got != current || latest != versions[len(versions)-1] {
+		t.Fatalf("GetVersions = %d, %d, %v", got, latest, err)
+	}
+	pending, err := p.HasPending(ctx)
+	if err != nil || pending != (applied < len(versions)) {
+		t.Fatalf("HasPending = %v, %v", pending, err)
+	}
+	status, err := p.Status(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(status) != len(versions) {
+		t.Fatalf("Status length = %d; want %d", len(status), len(versions))
+	}
+	for i, s := range status {
+		want := goose.StatePending
+		if i < applied {
+			want = goose.StateApplied
+		}
+		if s.Source.Version != versions[i] || s.State != want {
+			t.Fatalf("Status[%d] = %+v, version %d; want %s, %d", i, s, s.Source.Version, want, versions[i])
+		}
+	}
+}
+
+func assertResults(t *testing.T, results []*goose.MigrationResult, want []int64) {
+	t.Helper()
+	got := make([]int64, 0, len(results))
+	for _, r := range results {
+		got = append(got, r.Source.Version)
+	}
+	if !slices.Equal(got, want) {
+		t.Fatalf("applied versions = %v; want %v", got, want)
+	}
+}
+
+func assertEvents(t *testing.T, ctx context.Context, db *sql.DB, want []int64) {
+	t.Helper()
+	rows, err := db.QueryContext(ctx, "SELECT version FROM migration_events ORDER BY version")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer rows.Close()
+	var got []int64
+	for rows.Next() {
+		var v int64
+		if err := rows.Scan(&v); err != nil {
+			t.Fatal(err)
+		}
+		got = append(got, v)
+	}
+	if err := rows.Err(); err != nil {
+		t.Fatal(err)
+	}
+	if !slices.Equal(got, want) {
+		t.Fatalf("events = %v; want %v", got, want)
+	}
+}
+
+// postgresDatabase owns only its random schema, never the supplied database.
+func postgresDatabase(t *testing.T) func() *sql.DB {
+	t.Helper()
+	dsn := os.Getenv("MIGRATE_POSTGRES_DSN")
+	if dsn == "" {
+		if os.Getenv("CI") != "" {
+			t.Fatal("MIGRATE_POSTGRES_DSN is required in CI")
+		}
+		t.Skip("set MIGRATE_POSTGRES_DSN to run Postgres integration tests")
+	}
+	config, err := pgx.ParseConfig(dsn)
+	if err != nil {
+		t.Fatal(err)
+	}
+	admin := stdlib.OpenDB(*config)
+	t.Cleanup(func() {
+		if err := admin.Close(); err != nil {
+			t.Error(err)
+		}
+	})
+	schema := "migrate_" + strings.ToLower(rand.Text())
+	ctx, cancel := context.WithTimeout(t.Context(), time.Minute)
+	defer cancel()
+	if _, err := admin.ExecContext(ctx, "CREATE SCHEMA "+schema); err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
+		defer cancel()
+		if _, err := admin.ExecContext(ctx, "DROP SCHEMA "+schema+" CASCADE"); err != nil {
+			t.Error(err)
+		}
+	})
+	config.RuntimeParams["search_path"] = schema
+	return func() *sql.DB {
+		db := stdlib.OpenDB(*config)
+		t.Cleanup(func() {
+			if err := db.Close(); err != nil {
+				t.Error(err)
+			}
+		})
+		return db
+	}
+}
+
+func TestPostgresConcurrentUp(t *testing.T) {
+	open := postgresDatabase(t)
+	ctx, cancel := context.WithTimeout(t.Context(), time.Minute)
+	defer cancel()
+	const workers = 4
+	providers := make([]*goose.Provider, workers)
+	for i := range providers {
+		// Each provider owns a distinct pool and Go migration instance, like separate daemons.
+		pause := goose.NewGoMigration(3, &goose.GoFunc{RunTx: func(ctx context.Context, tx *sql.Tx) error {
+			_, err := tx.ExecContext(ctx, "SELECT pg_sleep(0.2)")
+			return err
+		}}, nil)
+		providers[i] = newProvider(t, open(), goose.DialectPostgres, "testdata/migrations", pause)
+	}
+	type outcome struct {
+		results []*goose.MigrationResult
+		err     error
+	}
+	start := make(chan struct{})
+	done := make(chan outcome, workers)
+	for _, p := range providers {
+		go func() {
+			select {
+			case <-start:
+			case <-ctx.Done():
+				done <- outcome{err: ctx.Err()}
+				return
+			}
+			results, err := p.Up(ctx)
+			done <- outcome{results, err}
+		}()
+	}
+	close(start)
+	var applied []int64
+	for range workers {
+		result := <-done
+		if result.err != nil {
+			t.Error(result.err)
+		}
+		for _, r := range result.results {
+			applied = append(applied, r.Source.Version)
+		}
+	}
+	slices.Sort(applied)
+	if want := []int64{3, 7, 20261026093000, 20261027114500}; !slices.Equal(applied, want) {
+		t.Fatalf("concurrent Up applied = %v; want exactly once each: %v", applied, want)
+	}
+	assertEvents(t, ctx, open(), []int64{7, 20261026093000, 20261027114500})
+	for _, p := range providers {
+		assertState(t, ctx, p, 20261027114500, applied, len(applied))
+	}
+}
+
+func TestConstructor(t *testing.T) {
+	db, err := sql.Open("sqlite", ":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
+	for _, test := range []struct {
+		name       string
+		db         *sql.DB
+		dialect    goose.Dialect
+		dir        string
+		logger     *slog.Logger
+		migrations []*goose.Migration
+		contains   string
+	}{
+		{name: "nil database", dialect: goose.DialectSQLite3, dir: "testdata/migrations", logger: logger, contains: "db must not be nil"},
+		{name: "nil logger", db: db, dialect: goose.DialectSQLite3, dir: "testdata/migrations", contains: "slog logger must not be nil"},
+		{name: "invalid directory", db: db, dialect: goose.DialectSQLite3, dir: "../migrations", logger: logger, contains: "directory"},
+		{name: "missing directory", db: db, dialect: goose.DialectSQLite3, dir: "missing", logger: logger, contains: "migrate:"},
+		{name: "invalid dialect", db: db, dialect: "unknown", dir: "testdata/migrations", logger: logger, contains: "dialect"},
+		{name: "nil migration", db: db, dialect: goose.DialectSQLite3, dir: "testdata/migrations", logger: logger, migrations: []*goose.Migration{nil}, contains: "must not be nil"},
+		{name: "duplicate version", db: db, dialect: goose.DialectSQLite3, dir: "testdata/migrations", logger: logger, migrations: []*goose.Migration{goose.NewGoMigration(7, nil, nil)}, contains: "7"},
+	} {
+		t.Run(test.name, func(t *testing.T) {
+			p, err := migrate.New(test.db, test.dialect, fixtures, test.dir, test.logger, test.migrations...)
+			if err == nil || p != nil || !strings.Contains(err.Error(), test.contains) {
+				t.Fatalf("New = %v, %v; want error containing %q", p, err, test.contains)
+			}
+		})
+	}
+	// Construction and validation are offline, even when the database is closed.
+	if err := db.Close(); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := migrate.New(db, goose.DialectSQLite3, fixtures, "testdata/migrations", logger); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestConstructorDirectory(t *testing.T) {
+	db, err := sql.Open("sqlite", ":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	// Directory validation and Go-only construction must remain offline.
+	if err := db.Close(); err != nil {
+		t.Fatal(err)
+	}
+	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
+	for _, test := range []struct {
+		dir     string
+		wantErr string
+	}{
+		{dir: "missing", wantErr: "directory"},
+		{dir: "testdata/migrations/00007_events.sql", wantErr: "not a directory"},
+		{dir: "."},
+		{dir: "testdata"},
+	} {
+		t.Run(test.dir, func(t *testing.T) {
+			p, err := migrate.New(db, goose.DialectSQLite3, fixtures, test.dir, logger, goose.NewGoMigration(10, nil, nil))
+			if test.wantErr != "" {
+				if err == nil || p != nil || !strings.Contains(err.Error(), test.wantErr) || !strings.Contains(err.Error(), test.dir) {
+					t.Fatalf("New = %v, %v; want directory error containing %q and %q", p, err, test.wantErr, test.dir)
+				}
+				if test.dir == "missing" && !errors.Is(err, fs.ErrNotExist) {
+					t.Fatalf("New error = %v; want fs.ErrNotExist", err)
+				}
+				return
+			}
+			if err != nil {
+				t.Fatal(err)
+			}
+			if sources := p.ListSources(); len(sources) != 1 || sources[0].Version != 10 {
+				t.Fatalf("ListSources = %v; want Go migration 10 only", sources)
+			}
+		})
+	}
+}
diff --git a/migrate/testdata/failure/00007_events.sql b/migrate/testdata/failure/00007_events.sql
new file mode 100644
index 0000000..ff1c813
--- /dev/null
+++ b/migrate/testdata/failure/00007_events.sql
@@ -0,0 +1,6 @@
+-- +goose Up
+CREATE TABLE migration_events (version BIGINT PRIMARY KEY);
+INSERT INTO migration_events (version) VALUES (7);
+
+-- +goose Down
+DROP TABLE migration_events;
diff --git a/migrate/testdata/failure/20261026093000_second.sql b/migrate/testdata/failure/20261026093000_second.sql
new file mode 100644
index 0000000..2c6643d
--- /dev/null
+++ b/migrate/testdata/failure/20261026093000_second.sql
@@ -0,0 +1,5 @@
+-- +goose Up
+INSERT INTO migration_events (version) VALUES (20261026093000);
+
+-- +goose Down
+DELETE FROM migration_events WHERE version = 20261026093000;
diff --git a/migrate/testdata/failure/20261027114500_broken.sql b/migrate/testdata/failure/20261027114500_broken.sql
new file mode 100644
index 0000000..4df34bb
--- /dev/null
+++ b/migrate/testdata/failure/20261027114500_broken.sql
@@ -0,0 +1,6 @@
+-- +goose Up
+INSERT INTO migration_events (version) VALUES (20261027114500);
+INSERT INTO missing_migration_table (version) VALUES (20261027114500);
+
+-- +goose Down
+DELETE FROM migration_events WHERE version = 20261027114500;
diff --git a/migrate/testdata/migrations/00007_events.sql b/migrate/testdata/migrations/00007_events.sql
new file mode 100644
index 0000000..ff1c813
--- /dev/null
+++ b/migrate/testdata/migrations/00007_events.sql
@@ -0,0 +1,6 @@
+-- +goose Up
+CREATE TABLE migration_events (version BIGINT PRIMARY KEY);
+INSERT INTO migration_events (version) VALUES (7);
+
+-- +goose Down
+DROP TABLE migration_events;
diff --git a/migrate/testdata/migrations/20261026093000_second.sql b/migrate/testdata/migrations/20261026093000_second.sql
new file mode 100644
index 0000000..2c6643d
--- /dev/null
+++ b/migrate/testdata/migrations/20261026093000_second.sql
@@ -0,0 +1,5 @@
+-- +goose Up
+INSERT INTO migration_events (version) VALUES (20261026093000);
+
+-- +goose Down
+DELETE FROM migration_events WHERE version = 20261026093000;
diff --git a/migrate/testdata/migrations/20261027114500_third.sql b/migrate/testdata/migrations/20261027114500_third.sql
new file mode 100644
index 0000000..fecea72
--- /dev/null
+++ b/migrate/testdata/migrations/20261027114500_third.sql
@@ -0,0 +1,5 @@
+-- +goose Up
+INSERT INTO migration_events (version) VALUES (20261027114500);
+
+-- +goose Down
+DELETE FROM migration_events WHERE version = 20261027114500;
diff --git a/migrate/testdata/numeric/00007_events.sql b/migrate/testdata/numeric/00007_events.sql
new file mode 100644
index 0000000..ff1c813
--- /dev/null
+++ b/migrate/testdata/numeric/00007_events.sql
@@ -0,0 +1,6 @@
+-- +goose Up
+CREATE TABLE migration_events (version BIGINT PRIMARY KEY);
+INSERT INTO migration_events (version) VALUES (7);
+
+-- +goose Down
+DROP TABLE migration_events;
diff --git a/migrate/testdata/numeric/00010_event.sql b/migrate/testdata/numeric/00010_event.sql
new file mode 100644
index 0000000..2b486ef
--- /dev/null
+++ b/migrate/testdata/numeric/00010_event.sql
@@ -0,0 +1,5 @@
+-- +goose Up
+INSERT INTO migration_events (version) VALUES (10);
+
+-- +goose Down
+DELETE FROM migration_events WHERE version = 10;