diff --git a/README.md b/README.md
index f0ea6b43..7c38a999 100644
--- a/README.md
+++ b/README.md
@@ -15,22 +15,13 @@ You should now have two executables: `flamenco-manager-poc` and `flamenco-worker
 
 Flamenco Manager has a SwaggerUI interface at http://localhost:8080/api/swagger-ui/
 
-## Flamenco Manager DB migrations
+## Flamenco Manager DB development machine setup.
 
-First install the `migrate` tool:
+Install PostgreSQL, then run:
 
 ```
-go install -tags sqlite github.com/golang-migrate/migrate/v4/cmd/migrate
-```
-
-To create a migration called `create_users_table`, run:
-
-```
-migrate create -dir internal/manager/persistence/migrations -ext sql -seq create_users_table
-```
-
-Migrations are **automatically run when Flamenco Manager starts**. To run them manually, use:
-
-```
-migrate -database sqlite://flamenco-manager.sqlite -path internal/manager/persistence/migrations up
+sudo -u postgres createuser -D -P flamenco  # give it the password 'flamenco'
+sudo -u postgres createdb flamenco -O flamenco -E utf8
+sudo -u postgres createdb flamenco-test -O flamenco -E utf8
+echo "alter schema public owner to flamenco;" | sudo -u postgres psql flamenco-test
 ```
diff --git a/internal/manager/persistence/db.go b/internal/manager/persistence/db.go
index 6da269a2..ee7c4baa 100644
--- a/internal/manager/persistence/db.go
+++ b/internal/manager/persistence/db.go
@@ -43,14 +43,23 @@ type DB struct {
 }
 
 func OpenDB(ctx context.Context) (*DB, error) {
-	return openDB(ctx, dbDSN)
+	db, err := openDB(ctx, dbDSN)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := db.migrate(); err != nil {
+		return nil, err
+	}
+
+	return db, nil
 }
 
 func openDB(ctx context.Context, uri string) (*DB, error) {
 	// TODO: don't log the password.
-	log.Info().Str("dsn", dbDSN).Msg("opening database")
+	log.Info().Str("dsn", uri).Msg("opening database")
 
-	gormDB, err := gorm.Open(postgres.Open(dbDSN), &gorm.Config{})
+	gormDB, err := gorm.Open(postgres.Open(uri), &gorm.Config{})
 	if err != nil {
 		log.Panic().Err(err).Msg("failed to connect database")
 	}
@@ -58,11 +67,7 @@ func openDB(ctx context.Context, uri string) (*DB, error) {
 	db := DB{
 		gormDB: gormDB,
 	}
-	if err := db.migrate(); err != nil {
-		return nil, err
-	}
-
-	return &db, err
+	return &db, nil
 }
 
 func (db *DB) StoreJob(ctx context.Context, authoredJob job_compilers.AuthoredJob) error {
@@ -73,7 +78,7 @@ func (db *DB) StoreJob(ctx context.Context, authoredJob job_compilers.AuthoredJo
 		JobType:  authoredJob.JobType,
 		Priority: int8(authoredJob.Priority),
 		Settings: JobSettings(authoredJob.Settings),
-		Metadata: JobMetadata(authoredJob.Metadata),
+		Metadata: StringStringMap(authoredJob.Metadata),
 	}
 
 	tx := db.gormDB.Create(&dbJob)
diff --git a/internal/manager/persistence/db_test.go b/internal/manager/persistence/db_test.go
index 9268a8bc..064535a1 100644
--- a/internal/manager/persistence/db_test.go
+++ b/internal/manager/persistence/db_test.go
@@ -22,34 +22,47 @@ package persistence
  * ***** END GPL LICENSE BLOCK ***** */
 
 import (
-	"os"
 	"testing"
 	"time"
 
 	"github.com/stretchr/testify/assert"
 	"gitlab.com/blender/flamenco-ng-poc/internal/manager/job_compilers"
 	"golang.org/x/net/context"
+	"gorm.io/gorm"
 	_ "modernc.org/sqlite"
 )
 
-const testURI = "testing.sqlite"
+const testURI = "host=localhost user=flamenco password=flamenco dbname=flamenco-test TimeZone=Europe/Amsterdam"
 
-func createTestDB(t *testing.T) (*DB, func()) {
+func createTestDB(t *testing.T) *DB {
 	// Creating a new database should be fast.
 	ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
 	defer cancel()
 
 	db, err := openDB(ctx, testURI)
-	assert.Nil(t, err)
+	assert.NoError(t, err)
 
-	return db, func() {
-		os.Remove(testURI)
-	}
+	// Erase everything in the database.
+	var tx *gorm.DB
+	tx = db.gormDB.Exec("DROP SCHEMA public CASCADE")
+	assert.NoError(t, tx.Error)
+	tx = db.gormDB.Exec("CREATE SCHEMA public")
+	assert.NoError(t, tx.Error)
+
+	// Restore default grants (source: https://stackoverflow.com/questions/3327312/how-can-i-drop-all-the-tables-in-a-postgresql-database)
+	tx = db.gormDB.Exec("GRANT ALL ON SCHEMA public TO postgres")
+	assert.NoError(t, tx.Error)
+	tx = db.gormDB.Exec("GRANT ALL ON SCHEMA public TO public")
+	assert.NoError(t, tx.Error)
+
+	err = db.migrate()
+	assert.NoError(t, err)
+
+	return db
 }
 
 func TestStoreAuthoredJob(t *testing.T) {
-	db, cleanup := createTestDB(t)
-	defer cleanup()
+	db := createTestDB(t)
 
 	ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
 	defer cancel()