Improvements to finding idle nodes, last_session actually only shows the last time the remote polled us

app/Models/System.php

@@ -2,6 +2,7 @@
 
 namespace App\Models;
 
+use Carbon\Carbon;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Support\Collection;
@@ -181,6 +182,11 @@ class System extends Model
 		return $val ?: Setup::findOrFail(config('app.id'))->msgs_pkt;
 	}
 
+	public function getLastSeenAttribute(): ?Carbon
+	{
+		return $this->logs_recent->first()?->created_at;
+	}
+
 	/* METHODS */
 
 	public function echoareas()
@@ -289,7 +295,7 @@ class System extends Model
 	}
 
 	/**
-	 * Return other addresses that are no collected here, but are on the same network as us.
+	 * Return other addresses that are not collected here, but are on the same network as us.
 	 *
 	 * @return \Illuminate\Database\Eloquent\Collection
 	 * @throws \Exception
@@ -298,6 +304,7 @@ class System extends Model
 	{
 		$our = our_address();
 
-		return $this->akas->filter(fn($item)=>($item->parent() && (! $our->contains($item->parent()))));
+		return $this->akas
+			->filter(fn($item)=>(($x=$item->parent()) && (! $our->contains($x)) && ($our->pluck('zone.domain_id')->contains($item->zone->domain_id))));
 	}
 }