wait, Querier can just return an iter like eventstore, it's ok.

eventstore/wrappers/querier.go

@@ -1,26 +0,0 @@
-package wrappers
-
-import (
-	"context"
-
-	"fiatjaf.com/nostr"
-	"fiatjaf.com/nostr/eventstore"
-)
-
-var _ nostr.Querier = StoreQuerier{}
-
-type StoreQuerier struct {
-	eventstore.Store
-}
-
-func (w StoreQuerier) QueryEvents(ctx context.Context, filter nostr.Filter) (chan nostr.Event, error) {
-	ch := make(chan nostr.Event)
-
-	go func() {
-		for evt := range w.Store.QueryEvents(filter) {
-			ch <- evt
-		}
-	}()
-
-	return ch, nil
-}