diff --git a/localserve.go b/localserve.go
index cfcc082..d2fd61d 100644
--- a/localserve.go
+++ b/localserve.go
@@ -16,6 +16,7 @@ import (
 	"os"
 	"os/signal"
 	"path/filepath"
+	"runtime"
 	"syscall"
 	"time"
 
@@ -144,7 +145,7 @@ during those commands instead of during "data".
 	if err := start(mtastsdbRefresher, sendDMARCReports, sendTLSReports, skipForkExec); err != nil {
 		log.Fatalx("starting mox", err)
 	}
-	golog.Printf("mox, version %s", moxvar.Version)
+	golog.Printf("mox, version %s, %s %s/%s", moxvar.Version, runtime.Version(), runtime.GOOS, runtime.GOARCH)
 	golog.Print("")
 	golog.Printf("the default user is mox@localhost, with password moxmoxmox")
 	golog.Printf("the default admin password is moxadmin")
diff --git a/main.go b/main.go
index 8e99144..9d51a8e 100644
--- a/main.go
+++ b/main.go
@@ -2863,6 +2863,7 @@ func cmdVersion(c *cmd) {
 		c.Usage()
 	}
 	fmt.Println(moxvar.Version)
+	fmt.Printf("%s %s/%s\n", runtime.Version(), runtime.GOOS, runtime.GOARCH)
 }
 
 // todo: should make it possible to run this command against a running mox. it should disconnect existing clients for accounts with a bumped uidvalidity, so they will reconnect and refetch the data.