diff --git a/cmd/weatherfeeder/config.yml b/cmd/weatherfeeder/config.yml
index 6b307e7..2bc1e7f 100644
--- a/cmd/weatherfeeder/config.yml
+++ b/cmd/weatherfeeder/config.yml
@@ -90,7 +90,7 @@ sinks:
     driver: nats
     params:
       url: nats://nats:4222
-      exchange: weatherfeeder
+      subject: weatherfeeder
 
 #  - name: pg_weatherfeeder
 #    driver: postgres
diff --git a/cmd/weatherfeeder/main.go b/cmd/weatherfeeder/main.go
index f8f77c5..9405691 100644
--- a/cmd/weatherfeeder/main.go
+++ b/cmd/weatherfeeder/main.go
@@ -37,9 +37,6 @@ func main() {
 	if err != nil {
 		log.Fatalf("config load failed: %v", err)
 	}
-	if err := fksinks.RegisterPostgresSchemaForConfiguredSinks(cfg, wfpgsink.PostgresSchema()); err != nil {
-		log.Fatalf("postgres schema registration failed: %v", err)
-	}
 
 	// --- Registries ---
 	srcReg := fksources.NewRegistry()
@@ -48,6 +45,7 @@ func main() {
 	// Compile stdout, Postgres, and NATS sinks for weatherfeeder. The former is useful for debugging and the latter are the main intended outputs.
 	sinkReg := fksinks.NewRegistry()
 	fksinks.RegisterBuiltins(sinkReg)
+	sinkReg.Register("postgres", fksinks.PostgresFactory(wfpgsink.PostgresSchema()))
 
 	// --- Build sources into scheduler jobs ---
 	var jobs []fkscheduler.Job
diff --git a/cmd/weatherfeeder/main_test.go b/cmd/weatherfeeder/main_test.go
index 2cfbef9..5aef5cb 100644
--- a/cmd/weatherfeeder/main_test.go
+++ b/cmd/weatherfeeder/main_test.go
@@ -24,13 +24,6 @@ type testInput struct {
 
 func (s testInput) Name() string { return s.name }
 
-type testKindSource struct {
-	testInput
-	kind fkevent.Kind
-}
-
-func (s testKindSource) Kind() fkevent.Kind { return s.kind }
-
 type testKindsSource struct {
 	testInput
 	kinds []fkevent.Kind
@@ -38,18 +31,6 @@ type testKindsSource struct {
 
 func (s testKindsSource) Kinds() []fkevent.Kind { return s.kinds }
 
-func TestValidateSourceExpectedKindsLegacyKindFallback(t *testing.T) {
-	sc := config.SourceConfig{Kind: "observation"}
-	in := testKindSource{
-		testInput: testInput{name: "test"},
-		kind:      fkevent.Kind("observation"),
-	}
-
-	if err := fksources.ValidateExpectedKinds(sc, in); err != nil {
-		t.Fatalf("ValidateExpectedKinds() unexpected error: %v", err)
-	}
-}
-
 func TestValidateSourceExpectedKindsSubsetAllowed(t *testing.T) {
 	sc := config.SourceConfig{Kinds: []string{"observation"}}
 	in := testKindsSource{
diff --git a/go.mod b/go.mod
index f5bb809..4ef4814 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,7 @@ module gitea.maximumdirect.net/ejr/weatherfeeder
 
 go 1.25
 
-require gitea.maximumdirect.net/ejr/feedkit v0.8.1
+require gitea.maximumdirect.net/ejr/feedkit v0.8.2
 
 require (
 	github.com/klauspost/compress v1.17.2 // indirect
diff --git a/go.sum b/go.sum
index 6a836dc..7d05c8c 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-gitea.maximumdirect.net/ejr/feedkit v0.8.1 h1:gSZ5J/mYHfNZ6dp27TS0V9RQ0JuP5ZAHXhSeCJaBu60=
-gitea.maximumdirect.net/ejr/feedkit v0.8.1/go.mod h1:U6xC9xZLN3cL4yi7YBVyzGoHYRLJXusFCAKlj2kdYYQ=
+gitea.maximumdirect.net/ejr/feedkit v0.8.2 h1:6AMxNacfqJ8SXQhFAUMW3LgiVxixs50tf+S8Q9Ivm+Y=
+gitea.maximumdirect.net/ejr/feedkit v0.8.2/go.mod h1:U6xC9xZLN3cL4yi7YBVyzGoHYRLJXusFCAKlj2kdYYQ=
 github.com/klauspost/compress v1.17.2 h1:RlWWUY/Dr4fL8qk9YG7DTZ7PDgME2V4csBXA8L/ixi4=
 github.com/klauspost/compress v1.17.2/go.mod h1:ntbaceVETuRiXiv4DpjP66DpAtAGkEQskQzEyD//IeE=
 github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
diff --git a/internal/sinks/postgres/schema_test.go b/internal/sinks/postgres/schema_test.go
index 70763b0..65779e4 100644
--- a/internal/sinks/postgres/schema_test.go
+++ b/internal/sinks/postgres/schema_test.go
@@ -1,58 +1,6 @@
 package postgres
 
-import (
-	"fmt"
-	"strings"
-	"testing"
-	"time"
-
-	"gitea.maximumdirect.net/ejr/feedkit/config"
-	fksinks "gitea.maximumdirect.net/ejr/feedkit/sinks"
-)
-
-func TestRegisterPostgresSchemasNilConfig(t *testing.T) {
-	err := fksinks.RegisterPostgresSchemaForConfiguredSinks(nil, PostgresSchema())
-	if err == nil {
-		t.Fatalf("RegisterPostgresSchemas(nil) expected error")
-	}
-	if !strings.Contains(err.Error(), "config is nil") {
-		t.Fatalf("error = %q, want config is nil", err)
-	}
-}
-
-func TestRegisterPostgresSchemasNonPostgresNoOp(t *testing.T) {
-	cfg := &config.Config{
-		Sinks: []config.SinkConfig{
-			{Name: "stdout_only", Driver: "stdout"},
-			{Name: "nats_only", Driver: "nats"},
-		},
-	}
-
-	if err := fksinks.RegisterPostgresSchemaForConfiguredSinks(cfg, PostgresSchema()); err != nil {
-		t.Fatalf("RegisterPostgresSchemas(non-postgres) error = %v", err)
-	}
-}
-
-func TestRegisterPostgresSchemasDuplicateRegistrationFails(t *testing.T) {
-	sinkName := uniqueSinkName("pg_test")
-	cfg := &config.Config{
-		Sinks: []config.SinkConfig{
-			{Name: sinkName, Driver: "postgres"},
-		},
-	}
-
-	if err := fksinks.RegisterPostgresSchemaForConfiguredSinks(cfg, PostgresSchema()); err != nil {
-		t.Fatalf("first RegisterPostgresSchemas() error = %v", err)
-	}
-
-	err := fksinks.RegisterPostgresSchemaForConfiguredSinks(cfg, PostgresSchema())
-	if err == nil {
-		t.Fatalf("second RegisterPostgresSchemas() expected duplicate error")
-	}
-	if !strings.Contains(err.Error(), "already registered") {
-		t.Fatalf("error = %q, want already registered", err)
-	}
-}
+import "testing"
 
 func TestWeatherPostgresSchemaShape(t *testing.T) {
 	s := PostgresSchema()
@@ -90,7 +38,3 @@ func TestWeatherPostgresSchemaShape(t *testing.T) {
 		}
 	}
 }
-
-func uniqueSinkName(prefix string) string {
-	return fmt.Sprintf("%s_%d", prefix, time.Now().UnixNano())
-}
diff --git a/internal/sources/nws/alerts.go b/internal/sources/nws/alerts.go
index 10804cf..f244c46 100644
--- a/internal/sources/nws/alerts.go
+++ b/internal/sources/nws/alerts.go
@@ -39,8 +39,8 @@ func NewAlertsSource(cfg config.SourceConfig) (*AlertsSource, error) {
 
 func (s *AlertsSource) Name() string { return s.http.Name }
 
-// Kind is used for routing/policy.
-func (s *AlertsSource) Kind() event.Kind { return event.Kind("alert") }
+// Kinds is used for routing/policy.
+func (s *AlertsSource) Kinds() []event.Kind { return []event.Kind{event.Kind("alert")} }
 
 func (s *AlertsSource) Poll(ctx context.Context) ([]event.Event, error) {
 	raw, meta, changed, err := s.fetchRaw(ctx)
@@ -71,7 +71,7 @@ func (s *AlertsSource) Poll(ctx context.Context) ([]event.Event, error) {
 	eventID := fksources.DefaultEventID("", s.http.Name, effectiveAt, emittedAt)
 
 	return fksources.SingleEvent(
-		s.Kind(),
+		event.Kind("alert"),
 		s.http.Name,
 		standards.SchemaRawNWSAlertsV1,
 		eventID,
diff --git a/internal/sources/nws/forecast_common.go b/internal/sources/nws/forecast_common.go
index c17372a..3d67b03 100644
--- a/internal/sources/nws/forecast_common.go
+++ b/internal/sources/nws/forecast_common.go
@@ -44,7 +44,7 @@ func newForecastSource(cfg config.SourceConfig, driver, rawSchema string) (*fore
 
 func (s *forecastSource) Name() string { return s.http.Name }
 
-func (s *forecastSource) Kind() event.Kind { return event.Kind("forecast") }
+func (s *forecastSource) Kinds() []event.Kind { return []event.Kind{event.Kind("forecast")} }
 
 func (s *forecastSource) Poll(ctx context.Context) ([]event.Event, error) {
 	raw, meta, changed, err := s.fetchRaw(ctx)
@@ -69,7 +69,7 @@ func (s *forecastSource) Poll(ctx context.Context) ([]event.Event, error) {
 	eventID := fksources.DefaultEventID("", s.http.Name, effectiveAt, emittedAt)
 
 	return fksources.SingleEvent(
-		s.Kind(),
+		event.Kind("forecast"),
 		s.http.Name,
 		s.rawSchema,
 		eventID,
diff --git a/internal/sources/nws/forecast_test.go b/internal/sources/nws/forecast_test.go
index 0dfc8bc..89ca44f 100644
--- a/internal/sources/nws/forecast_test.go
+++ b/internal/sources/nws/forecast_test.go
@@ -53,6 +53,11 @@ func TestForecastSourcesEmitExpectedSchemaAndPreferGeneratedAt(t *testing.T) {
 			if err != nil {
 				t.Fatalf("newSource() error = %v", err)
 			}
+			if ks, ok := src.(interface{ Kinds() []event.Kind }); !ok {
+				t.Fatalf("source does not implement Kinds()")
+			} else if gotKinds := ks.Kinds(); len(gotKinds) != 1 || gotKinds[0] != event.Kind("forecast") {
+				t.Fatalf("Kinds() = %#v, want [forecast]", gotKinds)
+			}
 
 			got, err := src.Poll(context.Background())
 			if err != nil {
diff --git a/internal/sources/nws/observation.go b/internal/sources/nws/observation.go
index 4cd0ce8..e139102 100644
--- a/internal/sources/nws/observation.go
+++ b/internal/sources/nws/observation.go
@@ -32,7 +32,7 @@ func NewObservationSource(cfg config.SourceConfig) (*ObservationSource, error) {
 
 func (s *ObservationSource) Name() string { return s.http.Name }
 
-func (s *ObservationSource) Kind() event.Kind { return event.Kind("observation") }
+func (s *ObservationSource) Kinds() []event.Kind { return []event.Kind{event.Kind("observation")} }
 
 func (s *ObservationSource) Poll(ctx context.Context) ([]event.Event, error) {
 	raw, meta, changed, err := s.fetchRaw(ctx)
@@ -54,7 +54,7 @@ func (s *ObservationSource) Poll(ctx context.Context) ([]event.Event, error) {
 	eventID := fksources.DefaultEventID(meta.ID, s.http.Name, effectiveAt, emittedAt)
 
 	return fksources.SingleEvent(
-		s.Kind(),
+		event.Kind("observation"),
 		s.http.Name,
 		standards.SchemaRawNWSObservationV1,
 		eventID,
diff --git a/internal/sources/nws/observation_test.go b/internal/sources/nws/observation_test.go
index 8104fa1..a6e20d7 100644
--- a/internal/sources/nws/observation_test.go
+++ b/internal/sources/nws/observation_test.go
@@ -41,6 +41,9 @@ func TestObservationSourcePollReturnsNoEventsOn304(t *testing.T) {
 	if err != nil {
 		t.Fatalf("NewObservationSource() error = %v", err)
 	}
+	if got := src.Kinds(); len(got) != 1 || got[0] != event.Kind("observation") {
+		t.Fatalf("Kinds() = %#v, want [observation]", got)
+	}
 
 	first, err := src.Poll(context.Background())
 	if err != nil {
diff --git a/internal/sources/openmeteo/forecast.go b/internal/sources/openmeteo/forecast.go
index d01980a..7749099 100644
--- a/internal/sources/openmeteo/forecast.go
+++ b/internal/sources/openmeteo/forecast.go
@@ -31,7 +31,7 @@ func NewForecastSource(cfg config.SourceConfig) (*ForecastSource, error) {
 
 func (s *ForecastSource) Name() string { return s.http.Name }
 
-func (s *ForecastSource) Kind() event.Kind { return event.Kind("forecast") }
+func (s *ForecastSource) Kinds() []event.Kind { return []event.Kind{event.Kind("forecast")} }
 
 func (s *ForecastSource) Poll(ctx context.Context) ([]event.Event, error) {
 	raw, meta, changed, err := s.fetchRaw(ctx)
@@ -55,7 +55,7 @@ func (s *ForecastSource) Poll(ctx context.Context) ([]event.Event, error) {
 	eventID := fksources.DefaultEventID("", s.http.Name, effectiveAt, emittedAt)
 
 	return fksources.SingleEvent(
-		s.Kind(),
+		event.Kind("forecast"),
 		s.http.Name,
 		standards.SchemaRawOpenMeteoHourlyForecastV1,
 		eventID,
diff --git a/internal/sources/openmeteo/observation.go b/internal/sources/openmeteo/observation.go
index 15639b8..6eeb276 100644
--- a/internal/sources/openmeteo/observation.go
+++ b/internal/sources/openmeteo/observation.go
@@ -31,7 +31,7 @@ func NewObservationSource(cfg config.SourceConfig) (*ObservationSource, error) {
 
 func (s *ObservationSource) Name() string { return s.http.Name }
 
-func (s *ObservationSource) Kind() event.Kind { return event.Kind("observation") }
+func (s *ObservationSource) Kinds() []event.Kind { return []event.Kind{event.Kind("observation")} }
 
 func (s *ObservationSource) Poll(ctx context.Context) ([]event.Event, error) {
 	raw, meta, changed, err := s.fetchRaw(ctx)
@@ -52,7 +52,7 @@ func (s *ObservationSource) Poll(ctx context.Context) ([]event.Event, error) {
 	eventID := fksources.DefaultEventID("", s.http.Name, effectiveAt, emittedAt)
 
 	return fksources.SingleEvent(
-		s.Kind(),
+		event.Kind("observation"),
 		s.http.Name,
 		standards.SchemaRawOpenMeteoCurrentV1,
 		eventID,
diff --git a/internal/sources/openmeteo/source_test.go b/internal/sources/openmeteo/source_test.go
new file mode 100644
index 0000000..b010678
--- /dev/null
+++ b/internal/sources/openmeteo/source_test.go
@@ -0,0 +1,44 @@
+package openmeteo
+
+import (
+	"testing"
+
+	"gitea.maximumdirect.net/ejr/feedkit/config"
+	"gitea.maximumdirect.net/ejr/feedkit/event"
+)
+
+func TestObservationSourceAdvertisesKinds(t *testing.T) {
+	src, err := NewObservationSource(config.SourceConfig{
+		Name:   "openmeteo-observation-test",
+		Driver: "openmeteo_observation",
+		Mode:   config.SourceModePoll,
+		Params: map[string]any{
+			"url":        "https://example.invalid",
+			"user_agent": "test-agent",
+		},
+	})
+	if err != nil {
+		t.Fatalf("NewObservationSource() error = %v", err)
+	}
+	if got := src.Kinds(); len(got) != 1 || got[0] != event.Kind("observation") {
+		t.Fatalf("Kinds() = %#v, want [observation]", got)
+	}
+}
+
+func TestForecastSourceAdvertisesKinds(t *testing.T) {
+	src, err := NewForecastSource(config.SourceConfig{
+		Name:   "openmeteo-forecast-test",
+		Driver: "openmeteo_forecast",
+		Mode:   config.SourceModePoll,
+		Params: map[string]any{
+			"url":        "https://example.invalid",
+			"user_agent": "test-agent",
+		},
+	})
+	if err != nil {
+		t.Fatalf("NewForecastSource() error = %v", err)
+	}
+	if got := src.Kinds(); len(got) != 1 || got[0] != event.Kind("forecast") {
+		t.Fatalf("Kinds() = %#v, want [forecast]", got)
+	}
+}
diff --git a/internal/sources/openweather/observation.go b/internal/sources/openweather/observation.go
index 25b6264..cb99c42 100644
--- a/internal/sources/openweather/observation.go
+++ b/internal/sources/openweather/observation.go
@@ -35,7 +35,7 @@ func NewObservationSource(cfg config.SourceConfig) (*ObservationSource, error) {
 
 func (s *ObservationSource) Name() string { return s.http.Name }
 
-func (s *ObservationSource) Kind() event.Kind { return event.Kind("observation") }
+func (s *ObservationSource) Kinds() []event.Kind { return []event.Kind{event.Kind("observation")} }
 
 func (s *ObservationSource) Poll(ctx context.Context) ([]event.Event, error) {
 	if err := owcommon.RequireMetricUnits(s.http.URL); err != nil {
@@ -60,7 +60,7 @@ func (s *ObservationSource) Poll(ctx context.Context) ([]event.Event, error) {
 	eventID := fksources.DefaultEventID("", s.http.Name, effectiveAt, emittedAt)
 
 	return fksources.SingleEvent(
-		s.Kind(),
+		event.Kind("observation"),
 		s.http.Name,
 		standards.SchemaRawOpenWeatherCurrentV1,
 		eventID,
diff --git a/internal/sources/openweather/source_test.go b/internal/sources/openweather/source_test.go
new file mode 100644
index 0000000..170c6e6
--- /dev/null
+++ b/internal/sources/openweather/source_test.go
@@ -0,0 +1,26 @@
+package openweather
+
+import (
+	"testing"
+
+	"gitea.maximumdirect.net/ejr/feedkit/config"
+	"gitea.maximumdirect.net/ejr/feedkit/event"
+)
+
+func TestObservationSourceAdvertisesKinds(t *testing.T) {
+	src, err := NewObservationSource(config.SourceConfig{
+		Name:   "openweather-observation-test",
+		Driver: "openweather_observation",
+		Mode:   config.SourceModePoll,
+		Params: map[string]any{
+			"url":        "https://example.invalid?units=metric",
+			"user_agent": "test-agent",
+		},
+	})
+	if err != nil {
+		t.Fatalf("NewObservationSource() error = %v", err)
+	}
+	if got := src.Kinds(); len(got) != 1 || got[0] != event.Kind("observation") {
+		t.Fatalf("Kinds() = %#v, want [observation]", got)
+	}
+}